SCIENTIFIC ABSTRACT TRESVYATSKIY, S. G. - TRESVYATSKIY, S. G.

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SCIENTIFIC ABSTRACT
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- 4f I tov< 11~1. 4.0 ~Ootv 1.11 ottol a Vital days from the Urolsand peoducts mado IMM MOM It. S. NitittlYLI-96 AIVI S- Va. It"VUlAil - C-1 lffi~ 9. No. I j. momm~ clem.-rotaft, I it. 15MI 1. 1 [IV ettitilpil. and prupertiree of difirleut dint claYle U -V) slid l d Ph I ilt nw-A . tit.-At fichavim dUring Mitic wrm Falv IAV% I vind I I Uvim high lit AlsOt anti low it, Fr. Pligit #v, III steel W had provsk-aill the -Alm. clivill. V.,91tim, I ' 00 Jlflecv,j lit sit, I.-Atmer; $levy Wk 1 I,tVjI,t far 11-11 it% 111jitift. All I JIJWN I.Atl Iti-4.144 JR4111. 41-ve Film I 14Y N' 11.01 4 hillb P, event rof And a - PX)* t l 1 I O Th 1 l 1 A 00 0 0 , it ,.$ 111130 1101 IIIA- 17 II i 11111 M III II W 816 III , R 114111 VIAW Weer 1411AilliNI IMM I YJW ft'.111 Illims. "of to. 701"i 1 otivit It IgAvo satipjak-lAsly Irmullo I Tim 1 11 , all 11--tigh I 11 0 lp I"ptilld It fiffe,frill 1140-toy 1"11 toolfillm-41 00 )A.-W le'lltilli. P#-eduvj- fear fi-tp -t-m-lite -old fee A- : Atim, with lyjW I only wile" Ni% wits litit-d. lot lettivid"t it%- raw tnalctWi wrtr pcefired whk-h 1-wet- the mcch. so g 'IrVngth and jow-Am. thr Itov-ily. Flim Cky V WA. tiodije. %I V, c"Ildoide ir 0 0u At to a to, It al a .1 0 0 411 0 0 0 0 4111 0 . . . . . . ~.'-O' 00. . All ;Soo 000000000000004 00 ;6 o so 160 60 :64 its 6 0 100 1 ell; ve PUG a 0 IV alone 0 0 0 o o o 0 0 0 o 0 o 0 600900000066006*66 TREMATSKIY, S. G. Cand. Tech. Sci; Dissertation: "Yethod for Determination of Electrical Conductivity and its application for invecti-gating Refactories at High Temperatures." Yoscow Order of Lenin Chemicotechnological Inst. imeni D. I. Mendeleyev 3 Oct. 49 80 Vechery-j~,,.-,,, (Ic V 71 cada"A-- 0 . (3 cl ... oxdal "A kmko --S., I I.. =60-1 SWW Z; 0.4 x:: ~" UW of Isili'.1n , . A= C- t~~ ~ W"t+ , f,! _i. ,r ml op". -11-~F-SV~ATSKIY, BMINDY, P. P. ; Fusibility diagram for the system YgO - Ca7p. Ukr.khlm.zhur. 19 no-5:552-555 153. (MM 8:2) 1. Moskovskiy khimiko-takhnologichaskiy institnt. (S~rstems (Chemistry)) (Magnesium oxide) (Flnorite) (Fusion) -.,, - - , I -~ -~ ~: -. - --l. - . --r. ~, , '. 1- '. ~ - BUDNIKOV, P.P.; TnSVYATSIKIY, S.G. DiaUam of the composition of 0-TiO2 no-5:371-376 154. 1. Diyaniy chlew.AN URSR (for Budnikov). (Sodium oxide) '(Titanium oxides) .An a7stems. Dap. AN URSR MaA 8:7) USSR/Chemistry - Physical chendstry :Card 1/1 Pub. 22 25/56 Authors Budnikov, P. P,, Memb. Corres. of Ac. of So. USSR,; and Tresvyatskiyp S. G. Title I Study of the structural diagram of GoOZ - Li 20 Periodical : Dok. AN SSSR 99/5.. 761-763, Dec 110 1954 Abstract I The presence in a GeO ?I - Li Osystem of Li 2GeO and Li GeO compounds with meltin,~ points of 1237 and ?295,+30, respecti4ely, ua4 established by study- ing the structural diagram of the above mentioned system. The two eutectics I Ition and discovered in the GeO9 - Li 0 system their percentage composL orientations are desaribe2 A113olymorphous corversion of GeO in compounds 1 2 containing from 85 - 95 mol. "." of Ge02 and 15 - 5 mol. !4 of Li 0. was observed at a 1035 t3o temperature. One German reference (1929-1931). 2~able; graph; illustrations. jnsti-~,,4~.ion The D. I. I-Iondeleyev Chemical-Technological Institute, Moscow Subm.tted June 22, 1954 v~ BUDNIKOVSP.P.; TRWYYATSINIT,S.G. Electric conductivity of typical refractory clays subjected to high temperatures. Dop. AN URSR no.2:165-167 '55. (KLHA 8:11) 1. Diysniy chlen Akademil nauk URSR (for Budnikov) 2. Moskovelkiy khimiko-tekhnologichnly institut imeni D.I.Mendeleyeva (Refractory materials--Electric properties) In t' plact6 at 5- 10 ngtv to Oic tilectradts sc, h- E hc gas,ts formed we-ep upV~Ird. prormfing the fused globult. Gic,bules, sufficit-lit frA ptta-c analyses, were thus pjrcpd- from Fe-O,. Cc~O, C -Cr.0%, MgCr-O., etc- Tlii-i n-'eth"'d ri'W'j :-r 1 "! C" Oki& of low elec. '-ond -'t 70 P W)O' (, A;~,~',, M "OIL, T-S VMectrical conductiit, at high tempm- f U 7 ! ~ ~ -n� v Vls turm P. 1. BudnikOv b~ (Fireproof Y-,1 K Afes,10tu. 19-05, 20, M). This type of refractory often comes into t contact with electric heating-elements. & &raph relates the logarith ru of the specific electTical Tesistance of corundum rofmctories to ihe temp and the content of bnnd clay. rh~ highest tesirtance is shown by conindinn ffomens mado without a bund (2-35 x 109 ohmicin ~t 700'). Those made with an addition of 2-S' clay have a rrsiqtance tpprox. onf~-tenth of this, 1,4 the clad content increases from 2-5',', to 20%, the resvitance de, -7-5 tinim With 20-50"0 clay, the resistance is latgely indeperuient Of the r composition. its value approaching that of sp--cimens d f--- the aame !irodav. RUIT Can-,n. Rps. Ass. An R ....,. F-SVI ATS Klyl Meth of R. oll'-Jlllly b;-s0 0 CqUiplutnE Dd PrGCMUrC fOr big tilemal:1111lysb (m.p., up to '1200'. Tmp. i5 lneans-: w,ith a W-Mo thermocouple. A Mo dish ifl 5URges"di = for M-Jting and an ckcUcmic gloteniommer for mcotding tUmnoirrams. B, Z. KaiTAC-4 A~R -,mi .pk WIN gr 137--1958-1-177 Translation from: Referativnyy zhurnal, Metallurgiy,,t, 1958, Nr 1, p 28 (USSR) AUTHORS- Budnikov, P. P., Tresvyatskiy, S. G., Cherepancv, A. W --------------- TITLE: Highly Refractive Oxides and Their Products (Vysokoogneupornyye okisly i izdeliya iz nikh) PERIODICAL: V sbornik Fiziko-khimicheskiye osnovy kera.miki, Moscow, Promstroyizdat, 1956, pp 301-3Z4 ABSTRACT- Current views on the processing of raw materials, chirges, molding, and sintering, and the properties and areas of application of products made of highly refractive oxides melting at over 20000 A1203, BeO, MgO, CaO, ZrO2, ThO2, and CeO;,. In accordance with the data of Hume-Rothery (Hurne-Rothery, W., Metallurgical Equilibrium Diagrams, London, 1952), practical recommendations are adduced on the choice of material for crucibles and the atmospheres and fluxes to be used in the fusion of 45 different pure metals (from light ones such as Li, Na, K and others to heavy ones like W, U, and others). Bibliography: 12.4 references. Card I /I S~ G. 1. Refractory oxidav--t~pplicationa V Y,~2 7--Zkt 'k Translation from: Referati-rvy zhurnal, Metallurgiya, 1958, Nr 1, p ~~5 (USSR) AUTHORS: Budnil-cv, P. P., Tresvyatskiy, S. G. TITLE: A Method for Determiring the Temperature of the Liquidus and the Solidus itl StAidies of Fusibility Diagrams and Phase Diagrams of Highly Refractory Oxides (Metodika opredeleniya temperatur likvidusa i solidusa pri izuch~erii diagramm plavkosti i diagrarnm sostoyaniya vy5olcoogrieupornvkh ok*~slov) PERIODICAL: V sb, -, Fiz.-khim. osnovy keramiki. Moscow, Proms troyizdat, 1956, pp 5ZO-536 ABSTRACT: Literature data are employed to set forth methods of determin- ing the temperatures of the liquidus in systems where smelting is done in air, in an inert gas atmosphere or in a vacuum, a method of annealing and hardening, and a method of thermal analysis at high temperatures with employment of high- temperature W-Mo thermocouples. The latter method, developed by the Authors, is described in greatest detail. Fusion and crystallization curves of A1203, 3 Al? CaAl? and CaF~, ,q3, 2S'tO? , M9?- Si04, _ 04 obtained by the W-Mo thermocouple method, are adduced, Card 1/1 Bibliography: 32 references. S. G. 1, 'A*efractory oxides-Temperature--Datermination 2. Ores--fto- cess:Lnp_---'-Vquj=ent p.p.; VOIDDIS, P.L.; TRESVYkTSKIY BUDNIKOV, - ukr.khim.zhuroZ2 Roview Of data on the 878tem: Cael 2 -- Bac 12' (HjU 9:9) no-3-292-294 156 ichlorides) Tf j F_ :5 V yj# -F5 t< i~5' g- PHASE I BOOK EXPLOITATION 83 AUTHORS: Tresvyatskiy, S. G., and Cherepanov, A. M. TITLE: High-refractory Materials and Oxide Products (Vysokoogneupornyye materialy i izdeliya iz okislov) PUB. DATA.- Gosudarstvennoye nauchno-takhnicheskoye izdatel'stvo literatury po chernoy i tsvetnoy metallurgii, Moscow, 1957, 246 PP-o 3,000 copies ORIG. AGENCY: None given EDITORS: Matveyev, M. A.; Ed. in chief: Badnikov, P.P., Academician; Ed. of the Publ. House: Rozentsveyg, Ya.D.; Tech. Ed.: Vaynshteyn, Ye. B. PURPOSE:. This book is for engineers and technicians working with,refractory materials in the fields of metallurgy and industries using high temperatures. COVERAGE: The book provides data on the manufacture and uses of high-refractory materials made from pure oxides and presents'a method of classifying products made Card 1/5 High-refractory Materials and Oxide Products (Cont.) 83 from alumina, zirconia, spinellides, oxides of bivalent metals, actinides, lanthanides, and mixed oxides. The principal stages of the manufacturing process are reviewed. TABLE OF CONTENTS: Introduction 5 Ch. I. General Information on High-refractory Oxide Products 1. Classification of high-refractory oxide products 7 2. Principal stages of the technological process of manufacturing high-refractory oxide products 9 3. General survey of the properties of high-refractory oxide products 42 4. Use of high-refraotory oxide products 61 Bibliography to Ch. 1. 66 There are Ill references of which 55 are Soviet, 50 English, 4 German, 2 Japanese. Card 2/5 High-refractory Materials and Oxide Products (Cont.) 83 Ch. II. High-refractory Materials from Alumina 1. Manufacture and properties of alumina 70 2. Techniques of manufacturing products from alumina. 86 3. Use of products from alumina 99 Bibliography to Ch. 11. 102 There 64 references of which 47 are Soviet, 13 English, 4 German. Ch. III. High-refractory Products from Oxides of Bivalent Metals 1. Products from beryllium oxide 105 2. Products from magnesium oxide 123 3. Products from calcium oxide 139 Bibliography to Ch. 111. 151 There are 106 references, of which 42 are Soviet, 49 English, 13 German, 3 unidentified. Card 3/5 ' High-refractory Materials and Oxide Products (Cont.) 83 Ch. IV. High-refractory Products from Zirconia 1. Products from zirconia 2. Products from zirconium Bibliography to Ch. IV. 155 182 188 There are 67 references of which 26 are Soviet, 33 English, 6 German, 2 French. Ch# V. High-refractory Products from Oxides of Actinides and Lanthanides 1. Products from oxides of actinides 191 2. Products from oxides of lanthanides 215 Bibliography to Ch. V. 218 There are 45 refereneps, of which 11 are Soviet, 30 English, 4 German. Card 4/5 High-refractory Materials and Oxide Products (Cont.) 83 Ch. VI. High-refractory Compounds From Spinellides and From Mixtures of Oxides 1. General characteristics of high-refractory spinellides 220 2. Products from magnesia spinel 225 3. Products from mixtures of oxides 227 RLbliography to Ch. VI. 233 There are 27 references, of which 6 are Soviet, 20 English, 1 German I P43pendix I. Some properties of high-refractory oxides and oxide products 237 Appendix II. Thermodynamic and physical properties of oxides 240 AVAILABLE: Library of Congress (TN677.T67) Card 5/5 TRESVTATSKIY. S.G. [Treaviatalkyt, S.H.] Study of Ge02-'- Ha.0 state diagram [with summarv in Zngllshl. Dop. AN URSR no.3:295-298 158. (MIRA 11:5) l.Moskovelkiy khlmlko-tekhnologichniy institut. Predstavleno aka- demikom AN USSR P.P. Budnikovym [P.P. Budnykovy-ml. (Germanium oxide) (Sopium oxide) AUTHOR. Tresvyatskiy, S. G. 131-2 3-5-9/16 TITLE: On the Influence of Vibrogrinding on the SinterinE_: of Active Mhgnesium Oxide (0 vliyanii vibropomola na spekaniye aktivnoy okisi magniya) PERIODICAL; Ogneupory, 1958, Vol. 23, Nr 5. pp. 229-233 (USSR) ABSTRACTu L. I. Trenin took part in the experiments. In previous experiments it became evident that active magnesium oxide can well be sintered, but is difficult to press in dry condition and also by means of plasticizers. The poor compressibility is explained by the particularities of the_wwder structure, in figure 1 the photomicrography of a preparation is mentioned which was produced from magnesium oxide, The latter was obtain- ed by means of burning basic magnesium-hydrocarbonate at a temperature of 12ooO to 13000, The material was burnt in pow- der-form and was not ground afterwards. In photomicrography it can clearly be recognized that the fine periclase crystals have a longish shape of 10-15&1 A powder from such longish crystals poorly deposits in charging and pressing, which ex- plains its low bulk weight and its poor compressibility. A dry Card 1/3 grinding in ball mills proved impossible here as the material On the Influence of Tibrogrinding on the Sintering of Active 131-23-5-9/16 Magnesium Oxide sticks to the walls. But it became evident that this does not occur in vibromills. Furthermore the experiment for the purpose of explaining the influence of vibrogrinding on the sintering of active magnedum oxide as well as the processes occurring on this occasion are described. Basic magnesium-hydrocarbonate of the "Chistyy" type, corresponding to GOST 6419-52 was used as initial material. From figure 2 it can be seen that by vibre- grinding the bulk weight increases and the sintering improves~ In figures 3 and 4 the micro-structure of magnesium oxide pow- der is shown after 30 or 6o minutes of vibrogrinding respective- ly. It can be ascertained that the longish form of the crystals disappeared and that they assumed a roundish shape. Then the sintering of samples of ground and unground powder was invest- igated. The samples were pressed dry under a pressure of 500 kg/cm2 and burnt in a vaccuum kiln. The results are illustrat- ed in the table and figure 5. As can be seen from them the sintering of vibroground samples begins at a temperature of 135o0 and is finished at 16ooO. For ungrorad samples the sint- ering begins at 1450 0 and is not finished even 1t 18ooO. It seems to be practical, to ascertain the microstructure and the bulk weight of the powders before the processing, and also the Card 2/3 volumetric weight of the unburnt samples, whioh-ghould On the Influence of Vibrogrinding on the Sintering of Active 131-23-5-9/16 Magnesium Oxide not be less than 0,5 - o,6 of the specific weight of the material. There are 5 figures, I table, and 7 references, all of which are Soviet. AVAILABLE: Library of Congress 1. Yagnesium oxide - Sintering 2. Vibration mi33A - Applications Grinding - Effectiveness Card Na 4. lei, 11ij-, J ? 9i'3 jig! 35 RT111 I It a - I J? 1-O MINE 5(2) AUTHORS: Budnikov, F. P., Corresponding MemberAS USSF4SOV/20-128-1-22/58 TresyZg,~~~ Yushakovskiy, V. I. TITLE: Investigation of Phase Transformation of Uranium Oxides in Air PERIODICAL: Doklady Akadamii nauk SSSR, 1959, Vol 128, Nr 1, PP 85-88 (USSR) ABSTRACT: In the present paper the decomposition of uranoso-uranic oxide occurring with heating was investigated, as there are only contradictory data on this problem (Refs 1-6). The decay temperature was determined by means of continuous weighing of uranoso-uranic oxide in tabloid form or pulverized during heating within the temperature range of room temporaturo up to 16oo-i9OOO. The curves of change in weight of uranoso- uranic oxide on heating and cooling in air are given in figures 1 and 2. For the determination of phase composition at different temperatures hardened samples were used~ The results of investigation are given in table 1. The results of two series of investigation indicated that uranoso-uranic oxide loses oxygen to a large extent already at 9000. Howeverp UP to 14500 the quantity of oxygen still corresponds to the Card 1/2 formula UO 2.63- The radiogram taken of the oxide of this Investigation of Phase Transformation of Uranium SOV/20-128-1-22/58 Oxidea in Air composition differs from the radiogram of U 308' At still higher temperatures, up to the boiling point, U 409 at atmospheric pressure is in equilibrium with o4ygeh. The oxygen content within this oxide decreases with temoerature increase, This causes a lengthening of the lattice spacing (Fig 3). The results found made it possible to complement the high-tempera- ture range for the phase diagram of the U-0 system (Fig 4), plotted by Akkermann(Ref 2). The samples UO 2,093' U02~14' and UO 2.08 calcined within the vacuum (10-1 torr) at 1050, 1100, and 16000 proved to be two-phase and consisted of U02 and U 4 09' However, it is possible that the two phase,, found by the authm during the decomposition of the solid solution have been formed due to too slow cooling. There are 4 figures, 1 table, and 6 references. SUBMITTED: June 2, 1959 Card 2/2 84699 vl' .214 2e AUTEEORt Tresvyatskiy, S. G~ S/13 60/000/010/002/002 B021XBO58 TITLE: The Influence of the Structural Type of the of Highly Refractory Oxides on the Relative Temperature PERIODICAL: Ogneupory, 1960, No. 10, pp~ 467 - 470 Crys-ta-l-Lattice Sintering TEXT: The results of experiments on chemically pure aluminum~lq beryllium-0 an6biagnesium oxides are mentioned in the preseni paper. The relative sintering temperature was assumed to be equal to the firing temperature in 0K The dependence of the relative porosity on the rela- 0 tive firing temperature in K is shown in Table I and on the relative sintering temperature, in Fig. 1. The values of the microhardness f th oxides investigated were determined by'means of the JTMT-3 (PMT-3 )A instrument. The dependence of the relative sintering temperature - d the microhardness of highly refractory oxides on the type and energy of the crystal lattice is shown in Table 2. The dependence of the relative sintering temperature'on the energy of the lattice of highly refractory Card 1/2 8h699 The Influence of the Structural Type of the 5/131/60/000/010/002/002 Crystal Lattice of Highly Refractory Oxides on B021/BO58 the Relative Sintering Temperature oxides, related to the unit volume (U~, kcal/cm3) is shown in Fig. 2, and the dependence of the microhardness on the same quantity, in Fig. 3. The foregoing refers to the sintering of pure, highly refractory oxides of the solid phase 1Lnd cannot entirely be extended to sintering processes in the presence of liquid phases, nor to the sintering of oxides of non- stoichiometric composition (such as Cr203; CeO 2)9 or to the sintering of oxides with polyntorphous transformations (ZrO 2) . There are 3 figures, 2 tables, and 7 referencess' 5 Soviet and 2 German. Card 2/2 5.'41*10, 21-1330 77219 AUTHORS: Tren~~~ Ku s ", a 1,-. ov sk i yI _ TITLE: Melting Point Determninations in Air af, of Uranium Oxides With Some Ot'.ner Oxides. Let-_=r the Editor PERIODICAL: Atormiaya energiya, !960, Vol 8, Nr 1, PP 56-58 (USSR) ABSTRACT: An increased interest in interactions of u-_ranium cxide with other oxides in air prompted this investigat-ion. The authors used UO BeO, MgO, CaCO-.,, BaCO Al 0 2-1 3 " 2 3 La201.31 Sio 2 T'02' Zr02 Th02' Ce02 H3F02"' V~:p 5j Ta 2011 Bi O"~j cr 0 (mtl H WOL~, Fe and 11inco- 02MOO4 2 203J 2 2 3 or., tiiem classified as pure, analytically pureand chemically pure. The degree of purity of Ta 0- and 2 ~) v 205 was not certain. Equimolar ratio was taken, ex- cept in case of oxides of Mg, Ca, Sr, and Ba ;,rhere additional 1:2 and 2:1 molar ratio mixtures were pre- Card 1/5 pared~. The mixtures were first heated in porcela4l, U .1. ~11 Melting Point Determinations 1- 41_r Q Binary Mixtures of U_"an_-*'~~,-, OxIde-s Some Other Oxides. Letter to zrie Ed-'z;cr containers at '3000 C, and formed into bricauets 2~, in diameter, and then roasted at 800-900o C. 7'ne briquets were afterwards pulverized and the proce(:t-re repeated at 1,000-1,1000 C and_1,200-1,3000 C in platinum containers. At 1,300- C the procedure ,,,-as reneated until the briouets looked stable, sho-wed no cracks, and did not shrink. Dell-erm-'Inatil-,r melting temperature of mixtures. Except for r-_fxtures which melted during prelim-inary roasting, the melt-ng temperature was determined by method of cone deflorma- tion. The cone vertex was heated in electrl_,~al arc maintained between carbon elect-rodes. Temperature measurements were taken a. microoptical pyrlor,-Ie-~Ier with an accuracy of +30-500 C for specimens forming a droplet, and +50-1007 C for those melting along the surface with a hard to obtain droolet. Results are listed in Table A. There is 1 table, and 1 Soviet reference. SUBMITTED: August 3, 1959 Card 2/5 Melling Point Determinations iri Air of 772-19 Binary Mixtures of Uranium Oxides With SOV/89-8-1-13/29 Some Other Oxides. Letter ~o the Editor Melting temperstures 17.:, air of binary mixtures of uranium oxides with other oxides 50 67 50 33 70 50 30 67 50 33 Card 3/5 l7c, e'Lt'o Mc I rjA.) U.'I , ,,, - tv., e- O't h e- Or W Bv0 3:1 higo 501NIgo 67 AlgO 30 CaO 50 cao 70 CaO 33SrO 50 SrO 67 SrO I It I it), ~Jl; 111112 1/1.53 1/0,404 1/1 112,J5 1/0,4 1/0,93 1/2,37 See note Card 515 � 5() I'MO� 50 1750� 54) 1 KO� 30 2(XX):IZ 50 20w� f,() 221V ~ 100 B")� 50 Illtoo� 'A 2:-W� 5() MIT, nl~ 7n 0 d a Im 047 D deo'- t's D.-~pj-1-4 F~- w,th d.F0-c,lTy Mall; w,th Jeurlc:'r Po,-Jlon SMM~- tic devplL-ts , svo-Amcc rne-)t*-~ Mcnj -th d,upicr Melting Point Determinations in Air of 77219 Binary Mixtures of Uranium Oxides With SOV/89-8-1-13/29 Some Other Oxides. Letter to the Editor 67 50 33 50 50 00 50 50 50 C v_,0!.$ a Tion ?o U/ ti ed. . t4& i ro" 1 1.1011 d... " ( c. in I, :, 4 '.1 Y$JC Or 33 BOO 1,10.54 1704)� 30 Z-)0 13110 1/1,03 17(9)� 51) 67 BOO 111,9 1 Gs)� 50 50AI,O, - IIJ40-+- 30 50 La 203 ~,Y)()+ 10 50sio, 1/1 1770 -t- '3() i4,,A).j- ~w 50 ZrO2 50 .50 Th02 lie 11:1"1111ITC11 50 CcO2 2700-L- 150 50 11207, 120(j.,:1350 Me IT. 7" 0 q- SO-- t~ Deopit. ri ,ro- Po,mcd b.r nor ci-~ ftoAoly o-Asn th-L Prw,#V~ "Ixtuoc- MtArs uijrh deiptcr Po,"a.-na, w^ d,~Psz..( M.Itt t&cj*jy M-14 w.Th AO JtQi"'ti - 1 i9i.,"r ace4 nD7- k"e.1tj L.4tjLf To T-4, r , a , r,,,.,] Card 4/5 See note Card 515 Melting Point Determinat ions in Air of TlJnary Mixture-3 of Uran-u:~, 0- -IdCs W10h Some Other OxIdes. Lotter Lo the EdItor, a C .-p.4 a T,on ...... - MIT.n )"odt- U02 C- A ~l ys,c o& d r- ~A) X,2(15 84 1 Sli !AX) - 10M 50 I I x 12(-X) W H. .-A 1 :10 Bi.0:1 A) M~Irs hlTle.) evcLoc.,rci 11.~ 64&r1,%3 .5o 5(1 5t) .14) Ilk) Card 5/5 I 185l) ~~A) 5()Silt). oc.,, r kh c j j, ),, rnf a,, 4 r r A 5u (:r-.(I:i -2115(1 J-. fix) 0;-Opi~t-; Prm WJA W FA-10, 1370� ~31) M-Kc emstly -A) .11110: : I I 6o W HeT 1 !,700-27-~O:~- NO! VlFP*, LV t., In coses where chomical anDlysis wbs not perforr-ed, changes in cherr.icq1 constItution were oractically ne-ligible, with the exc~3ption of mixtures with oxidos of bismuth, lood ond tin. As- AUTHORS: TITLE: PERIODICAL: 82285 S/08 60/00QV01/09/011 B014YB070 Treavy :akLy,,.~t G.. Kushakovskiy, V. I.-, Belevantsev, V. S. Investigation of the Systems BeO Sm9OA and BeO - Gj-223 Atomnaya energiyaq 1960, Vol. 9, No. 19 PP. 54-55 TEXT: The starting materials for the preparation of the sample had a purity of 99.5 to 99.c The temperatures of still liquid and already solidified melts contained in a molybdenum crucible were measured by means of a tungsten-molybdenum thermocouple. By a chemical analysis of the slowly crystall iZ4 ng alloy, the composition of the eutectic was determined. The analySiS shows that the composition of the alloys is not different from that of the layers. Microstructural analyses of molten samples indicate that in the hypoeutectic alloys beryllium oxide crystallizes first while in the hypereutectic alloys samarium and gadolinium.'oxides do so first. If the lattice constants of beryllium in thermally treated alloys containing oxides of rare earths are measured, Card 1/2 82285 Investigation of the Systems BeO - Sm203 S/08 60/009/01/09/011 and BeO - Gd203 B014YI3070 no solid solutions are found in beryllium oxide. The eutectics contain 35 mole % of samarium or gadolinium oxide and 65 mole % of beryllium oxide. The phase composition of the samples that contained much Sm203 and Gd203 could not be determined roentgenographically. Samples that contained 0.5 or more mole % of be-7yllium oxide and were annealed between 13000C and 15000C showed two distinct phases in reflected light. This supports the theory that in the systems BeO - Sm903 and BeO - Gd203 in the temperature range 1300-1'500'C solid solutions do not occur in the oxides of rare earths. The phase diagrams of the above systems are reproduced in Pigs. 1-3. The melting points of the eutectics of these systems are lower than those of the ;aystem BeO - La.203. There are 3 figures and 3 references; 2 Soviet and 1 German. SUBMITTED: January 7, 1960 Card 2/2 S1069~105~ 009/003/009/014 B006/BO63 AUTHORS: TresvyatskiLL_�_~ G., Kushakovskiy, V. I., Belevantsev S TITLE: Investigation of the Al.0 -'Sm OVIand Al 0 3-1 Systems 2.3 PERIODICAL: Atomnaya ertergiya, 1960, Vol. 9, No. 3, pp. 219-220 TEXT: In the introduction to the-present "Letter to the Editor"i the wr-'itprs discuss the re3ttlt.a of other authors who have studied the systems mentioned in the title. The main part deals with experimental determina.- tions of the solidus and liquidus temperatures of these systems between `700 and 23500C. For thii3 purpose, the authors used the high-temperature thermal analysis accordin,3 to the method described in Refs- 4 and 5. Sm203 and Od20 3 with not more t~.an 0.5% imPuritieH (other oxiden cf rare earths), and Al20 5 of the type qAA(ChDA) served as starting materia.19. The thermal analysis indiDated the following: The eutectic (Al 0,-.Sm 0 2 2 3 Card 1/3 82957 Investigation of the A! 2 05 - SM20 3 and 3/089/60/009/003/009/014 Al20 3 - Gd 2 03Systems B006/BO63 melts.from the ride of Al,,O at 1770 + 20, C (F'-,g. 1), while that of the A 1 10, - Cd 0 syst5,m star'~s melting at 1760 + 200C (Fig. 2). From the 2 3 side of the rare-earth oxides, the eutectics reach their melting points at 1860 + 20 0C and 1930 ~- 20 0 C, respectively. The compounds SmAIO and 30 GdAIO melt practically at the same temperature, namely, 2060 + 20 C. A 3 microstructural anal,,yrsis aft'er thz7- thermal s~,nalysin (in reflected light) showed that in aj.joys having 0 '20 mole of rare-earth oxides A190 Crystallized fir~it; a It2S GfiAIO-; at '15 100 :~O 1 )n 2 3j, e(itectic.)-'and bnt%eer: (0-and mole's of rstre-earth oxidQs (high-melting eutectic),-. Samples containi'tig mor-0. than I cr less than j9 mole% of such oxides.',were found to be two-phoise substances. The LrjQ'ariant points of the two syst~~ms inv~?sti-gated (.above 17000C) are li2~ed in a table and compared with the data published in Ref, 3. The Ca-rd 213 82957 Invest.igation of the Al20.2 - Sm20, and S//089/60/009/003/009/014 Al,~O - Od 0 System.4 B006/BO63 e 3 2 3 numbering of the.poi*nts co:.Iresp.onds to that of Figs. I and 2. The results obtained by the authors pal~tly agree with those of Ref. 3. There are ., figures, I table, and 5 references: 2 Soviet, 2 9S, and 1 British. SUBMITTED: March 24, 1!)60 Card 3/3 BUDITIKOV,P.P.,; VOL40IIIN,I,.k.; TRESffATSKIY, S.G. Ivestigating the clinkering and recrystallizatIon of pure wguesium oxide. Ogueupory 25 no.2:70-73 160. (KERA 13: 10) (Magnesium oxide) (Crystallization) (Clinker brick) 15( AUTHOR-, TITLE: 1'2R10DICAL- ABS'.22ACT: Card 1/2 S11 3116010001031GOV01 3 Tresvyatskiy, :3. G. B015/13005 On tile Role of Glo (j(' d Po 1,o -9 in the Sintcrinj-, of Purc, Highly Refract6ry Oxitios -17 Ogneu-iory, 1960?, ur 3, vp 130-132 (USSR) A To investiE;ato the rca.;oa.,; for the anoi:ialouc bchavior of hiagnesiun oXide in sintc_-,i;,v,, tile author der;criboc the sinter- ing conditions of active Maq;nosium-, beryllium-, and aluminun oxide under similar condi'G."Loy,.q. The inveuti'~-,Jtion resul t 3 are graphically reprc~;cnt-c.C. in fi,liires 1,2, and 3 which show th 0 dependence of real, o--)en V.-O, closed porosity on the wci('-,ht by volume of the Tl.:.~ fine -tructure of the na(,nesium- oyide sartiple is jAiown in fili~rc 0, In concluz.-ion, the author states that the sinterin.- (if -tar-.iploo up to a hiCh density can only take place in the absence of closed pores. If the closed pores are mairtly situated along the crystal boundaries, this process occurs at a sufficiently high rate, which is not the case with tile formation of pores inside the crystals as can be observed in the sintering of active magnesium oxide. There 0 On the Role of Closed Porosity in the Sintering, of Pure, Highly Refractory Oxide.,,, are 4 figures and 3 Soviet references. Card 2/2 8/131/60/000/03/008/013- B015/]JO05 117~11 01// TRESVYATSKIT, S-G-, KUSHIKOVSKIY, V.I., BWAYARTSEV, V-S. High-temperature thgrmal analysis using tungstic zolybde thermocouples. Ognempory 25 no.4:180-181 160. (MIRA 13:8) (Thermcouples) TRESVUTSKIY2 S.G. Determining sintering temperatures of highly refractory masses. Ogneupory 25 no.f;:232-233 .160. (Mia 14:5) (Sintering) TRESVYATSKIT, S.G.; GRIMOV, V.V.; VOLODIN, P.L.; SEROV, K.M. High-temperature vacuum kilns for calcinating high-strength refractories. Ogneupory 25 no-7:313-316 160. (HIRA 13:8) (Refractowy materials) (Kilns) TMVYATSKIY, S.G. 11~- *,,.e Nfect of the Otracture of the Qr78*Ll lattice of highly refractory oxides on tho rolative temporatura of olinkoring. Opeupory 23 no.10i 4,67-470 16o. (Refractory materials) (MIRA 13:10) so D029/DlOg AUTHORS: Budnikov, P.P., and Tresvyatskir, S.(;. TITLE: Methods of high-temperature thermo-analysis of oxide syste~.-:s PERIODICAL: Silikattechnik, no. 9, 1961, 396-398. TEXT: Static procedures such as the quenchin- method accordin- to Belyani-in, D.S., Lapin, V.V., and Toropov, N.A. (Ref. 1:" The physical-chemical systc:;is Of silicate technology, 2nd ravised edition, 1iloscow, Promstroiisdat. 195,14) or the cone fall point method have found wide application for ti,e investigra- tion of phase diagrams of highly fire-resistant oxides. The fall Point method is easily applicable although the diagrams obtained must be considered fusibility diagrams under given t,~-st conditions rather than Phase diagrams olf the systems examined, according- to Balyankin, D.S., Lapin, V.V., and Toropov, N.A. (Refl. 1.). The quenching method allows reliable results only if test material forms glass on rapid cooling. If, however, the material has a high crystallization velocity and does not form -lass on quenching, resul-,z; accord- ing to the quenching method are not always reliable. The authors describe a Card 1/5 2 r'. 2 !!~N 4 Liethods of high-temperature D029~DlOQ~ high-tommerature thermo-analysis which is largely free of the mentionc~d shortcomings. The method is simple, reliable and permits the determination of solidus and liquidus temperatures of -nell crystallizin:r melts oC "-';L~hly fire-Droof oxides in the teal-Derature range of 15000 - 24000C with ~n exaci- + ness of - 100. The method is suitable fo- -naterial which does not reaC 4~- with molybeenlam under purified helium, argon or nitrogen. Such sul-stances are: BeO, -0, CaO, SrO A12031 2 3 La 0 , and oxides of the rare earths. S'021 Zr02, Th02, UG2. The method cannot be reco:.-.mended for systems cont-ain'ing oxides which are reduced at high temperatures or which,in molten stage, react with molybdenum, such as oxides of cobalt, iron, nickel, etc. The ar- rangement of the thermoelements in the furnace, the consturuction of the 'ur- nace, and the device for the mountinn- of the thermoolement are shown in Fig 2. The upper part of the furnace was closed durinff the test ;,rith a special hood according to Budnikov, P.P., Tregvyatski, S.G., Fushakovoki, V.I., (Ref. 5: Lecture -", 12193 at the 2nd International Conference of the U110) on Peaceful Application of Atomic Ener~7y, Geneve, 19;8) for the feeding and distribution of the shielding Car. The hood was not used -at th-e be,-innin- 'I Card 2/5 2,'1250 G/00 61/000/009/001//003 Methods of high-temperature ... D029YD109 in accordance with Tresv atski, S.G., Kushakovski, v.j., Belevantsev, V.S. (Ref 4;, Ogneupory (19M no. 4, P 180-181). Satisfying results withou-: 1100d Wovlo, howtivor, obtained only if the solidus and liquidus temperatures were at 2,OOOOC or below. &n aloctrouto oofiiponnatinn recorder P.PP-09 with ., cu r%, L scale up to 10 mV was used for recording the heating, and coolitir -,.%, Such curves are usually recorded with a palper feeding opeed of 6 mm/min. The tests were conducted with a cooling and heating velocity of 20 - 80 degr/min. It seems important to stress the following facts: On recording by an electronpotentiometer the thermoelement is grounded throuch the cir- cuits of the apparatus. It is therefore necessary to isolate the furnace and secondary coils of the transformer against the ground potential. If thio in omittod, parasite electromotive forces appear in the thermoelement circuit, produced by the thermo-ion and thormo-eloctron emission at high temperatures. This parasitic EMF distorts the resulto of th(., rocordor. The switching-on and the breaking of the heating circuit must have no influence on the comDensation recorder. The whole arrangement thermoelement - potent- iometer was calibrated according to the melting points of pure fire-proof Card 3/5 27 250) G/005/61/00--/009/001/003 I'Viethods of high-temperatura ... D029/D109 compounds, For this purpose the following values were established: MgAl204 2135�250C; A120 3 ~ 2050+-100c; 3A1203 - 2SiO2 = 1900tlOOC; TA92S'04 1860�200n,; CaA'204 = 1600t5oc; MgSiO3 ~ 1563-~-20C; CaF2 = 141C. 10OC; MgO , CaO - 2SiO2 = 1391-+30C. Chemically pure initial ovides were used for the proauction of binary and ternary compounds. The described method can be used successfully for the investi-ation of phase diagrams of metals, mixtures of metals and oxides, carbide, boride and similar systems. In such cases, however, the molybdenum plz--te -.-.ust be coated with a metal oxid-e, a high-temporature enamel or a similar substance in order to avoid its melting and fi,,sing with the substances tested. There are four figures and 5 Soviet-bloc references. ASSOCIATION: Chemical-technological Institute ".D.I. Mendeleyev", Yoscow Card 4/5 s/oF,1/62/000/003/047/090 B156/3101 AUTHORS: Budnikov, P. P., TresvvatskjZ._Z,.G. TITLE: Procedure for high-temperature thermal analysis of oxide systems PERIODICAL: 'Referativnyy zhurnal. Khimiya, no. 3, 1962, 370-371, abstract 3X182 (Poroshk. metallurgiya no. 1, 1961, 75-81) T=.L- A. pro-cedure is described for the high-temperature thermal analysis of oxide systems. A tungsten-molybdenum thermocouple, with a small molybdenum plate relded to the junction to serve as a crucible for the substances being investigated, is recommended for determining the solidus and liquidus points between 1500 and 2400 00. The furnace used for heating 0 to 2400 C has a heating tube made of electrographite, the tube is fitted with(a special system of baffles to develop a circulating flow of inert gas argon, helium, or pure nitroeen) which is fed into the furnace from above. This baffle arranCement prevents carbonization of the thermocouple and the contents of the crucible from the gaseous phase. The procedure Card 1/2 s/081/62/000/00'-"/047/090 Procedure for high-temperature ... B156/B101 provides good results -,hen determinin.- the solidus and liquidus points for systems in substances which do not react with molybdenum up to 24000C. LAbstraoter's note: Complete trunslation.] Card 2/2 -50 -2.1 31610 S106 3/61/006/006/00 2/0 016 A057/AI26 AUMORS: Tresvyatskiy, S.-G.,_, Doctor of Technical Sciences, cherepanov. A. M., Candidate of Technical Sciences, TITLEi Highly refractory systems with oxides of lanthanides and actinides PERIODICAL,. Zhurnal vsesoyuznogo khimicheskogo obshchestva imeni D. I. Mendele- yeva, V. 6, no, 6, 1961, 612 - 618 TEXTt A review of literature on oxides of lanthanides and actinides with other highly refractory oxides is presented and discussed. This discussion of phase diagrams is of practical and theoretical importance,.since oxides of' rare earth elements became valuable not only in atomic industry, but-also in the-manu- facture of various highly refractory materials with special properties. Since tha-phase diagrams are still insufficiently developed, some of themare.only ten- tativej International papers,containing phase equilibrium.diagrams of systems with U02,.Th02, Sm2031 Gd~03, Ce02_ZrO2I-ZrO2-La9O3-and Zr%-Nd~03 are mentioned. Based on the presented review and discussions the following tentative general con- clusions were drawn by the authors- Apparently all 3ystems of four-valent actinide oxides with beryllium-oxide are simple eutectic systems in the temperature range Card 1/4 31610 S/063/61/006/006/002/006 Highly refractory systems with... A057/A126 of the Bolidus and liquidus. Formation of solid solutions, or at high temperature stable compounds could not be observed. Systems with magnesium oxide are probably also simple eutectic systems, but here the formation of solid solutions with a limited solubility at the side of the actinide oxide is possible. Systems Wit-b- calcium oxide contain a liquidus of an eutectic type and a region of solid sahi- tions at the side of actinide oxide. In these systems formation of melting (w,_tk! decomposition) compounds Is possible, but this question needs some further in- vestigations. Systems with aluminum oxide are analogous to systems with beryllil= oxide. Systems with zirconium dioxide are characterized by wide regions of solid solutions of two types,iA, based on actinide oxide and on zirconium oxide., w1th a two-phase region of these two solid solutions at intermediate concentration-Q. Characteristic for actinide oxide systems is the formation of solid solutionz w_-n an almost infinite solubility in the solid state. Systems with actinide oxid--s' and S102 are characterized by an eutecticum close to S102 and by the formation. oft" orthosilicates of the type AcS104, melting with decomposition below the -tempera- ture of the liquidus. In systems of actinide oxides with oxides of trlvalen~ T-6T'e earths a region of solid solutions is formed on the side of actinide oxide having a two-phase region of the solid solution and Re~~03 (Re = rare earth) at- the side of the rare earth oxide. In relation to systems with oxides of trivalent rare card 2/4 31610 S/063/61/006/006/C)02/Tj6 Highly refractory systems with... A057/A126 earths,the following conclusions were presented: Systems with beryllium oxide are eutectic and analogous to systems with actinide oxides but they have a very low melting temperature of the liquidus (about 1,450 - 1,5000C). No investigations were made yet on systems with oxides,of magnesium, calcium, and strontium. Cna-rac- teristic for systems with aluminum oxide is the formation of compounds of the type ReA1031 melting without decomposition above 2,OOOOC, and the presenc.e of two eutec- tica, one between Re203rReAlO 3 and the other between ReA103 -A1293- Apparently no solid solutions were formed between the components in these systems. Systems with zirconium dioxide are characterized by wide-regions of solid solutions,- anddiffer from other systems by complexity. They.are not yet suffIciently investigated. Systems of rare earth oxides between themselves are not investigated, but the authors assume the possibility of the formation of regions of solid solutions, soluble in the solid state almost to infinity in these systems. Systems with S102 are characterized by the formation of three silicates* and the presence of a wide regioR,of immiscibility in the liquid state at the side of S102, The authors point out that the conclusions presented are only tentative because of the Insuf- ficiency in investigating the whole discussed matter. There are 17 figures, an 30 references: 11 Soviet-bloc and 19 non-Soviet-bloc. The references to the 4 most.receni EnglishTlanguage publications read as followsi P. E, Evans, J. Am. Card 3/4 Highly refractory systems with.-. Ceram.j Soc-, 43, no. 9, 44&-(1960); E. for Ceramists. Part. 2, USA, Ohio,,1959, Soo.,, 40, no. 1, 15 (1957); F, Alfred, no. 4, 199 (1959). 31610 S/063/61/006/006/002/GC5 A057/AI26 K. Levin, - H. - F- Mcfftidic, , Phase Diagrams C. Curtis, J. Johnson, J. Am. Ceram, A. White, Trans, Brit. Ceram. Soo., 58. card 4/4 s/o8o/61/034/003/001/017 k5_7/A129 AUTHORS: Budnikov, P. P., Marakuyeva, N. A., Tresvyatskiy, S. 0. TITLE: Effect of the composition of the binder on properties of mixes in hot-casting of ceramic products PERIODICAL: Zhurnal prikladnoy khimii, V. 34, no. 3, 1961, 492-497 TEXT: The effect of the composition and amount of the binder on rheologic properties of alumina-containing ceramic mixes on paraffin-wax-stearin base binders with oleic acid admixtures was investigated. The quality of hot-cast ceramic products used in electro- and radio-ceramics and refractory materials depends on the cast mixes, which represent thermoplastic suspensions of a ceramic material in the binder. For the latter various thermoplastic organic materials with low melting point were used (paraffin, paraffin mixtures with wax or stearin, and oleic acid admixtures etc ). Studying the structural viscosity for rate gradients until 80 - 100 sec-1 and the casting ability of mixes furnished on fine- grade skeletons (mean grain diameter 1-5~0 and paraffin-wax-stearin binders with oleic acid admixture, abnormal viscosity, i.e., thixotropy in stearin and paraffin- stearin mixes and dilatation in wax and paraffin-wax mixes was observed. In Card 1/7 s/080/61/034/03/ow/07 Effect of the composition of the binder ... A057/A129 casting under pressure of 2-8 atm. mixes with a binder containing 8% paraffin, 12% stearin and 3% oleic aoid had, due to thixotr6py, a more than 1.5 times higher fluidity than the other mixes investigated. The last-mentioned composition-' of the binder is also recommended for casts with greater height (400 - 500 mm). The strength of casts containing 15% stearin in the binder is 20% lower in comparison to casts with a binder containing 15% wax. The present study on the important effect of composition of the binder on properties of mixes was made since few data are published in the literature related to this question, and no information at all is published on properties of fine-grade mixes (1 - 1.5/A). In some investigations, as published by P. 0. Gribovskiy (Ref. 1: Goryacheye litlye keramicheskikh Izdeliy [Hot casting of ceramic products], Gosenergoizdat, M. [19561), tiscosity was determined with an Engler viscosimeter and thus abnormal. changes in viscosity of highly concentrated suspension effected by changes in pressure were not observed. As structure-forming agent in the present investi- gations "koraks" N = 320 ground with water for 6 hours in a vibration mill was used. The grain size of the powder was determined turbidimetrically and was found to be: 50 - 40p, 5%, 40 - 301.4, 4%, 30 - 20/,t, 11%, 20-10 21%, - 10 - 5/,w 25%, below 5/4, 34%. Specific surface of the powder was 1.05 49, i.e,, the mean grain diameter was about 1.5/k determined by the method of diluted air Card 2/ 7 S/080/61/034/003/001/017 Effect of the composition of the binder ... A057/AI29 filtration described by B. V. Deryagin et al. (Ref. 5: Opredeleniye vneshney udeltnoy poverkhnosti poristykh tel po metodu filtratsii razrezhennogo vozdukha (Determination of the external specific surface of poroiis materials by the method of filtration of diluted air), Izd. AN 838R, M. (1958)). Homogenized paraffin was used as binder (melting point 530), natural wax (softening point 48-520C), and stearin (melting point 560C). The latter was of the commereial grade and contained stearic, palmitic and oleic acid. Viscosity of the mixes was determined by a rotating viscosimeter (with inner rotating cylindero of the Volarovich system (Ref. 6: Tr. Poligraph. inst. OGIZ [19377), and the structural viscosity shear stress V, and rate gradient D were caleulated from corresponding 7 0'rmulae. Fluidity for casting conditions under pressure ~2-10 atit), i.e., for rate gradients thousand times higher than measurable on the Volarich viscosimeter, was estimated by measuring the filling depth of a spiral-shaped cavity (4 x 4 mm) with the mix at 2, 4, 6, 8, and 10 atm. The strength of the casts was determined by torsion tests on rod-shaped test samples. Fluidity eurves (Fig. 1) of mixes with 29 vol% binder show an abnormal character. The paraffin-base mix is similar to a Bingham system and near to a Newtonts liquid, while the-.wax-base mix shows dilatation, i. e.,an increase in the rate gradient effectB an increase in struc- tural viscosity. The stearin-base mix shows thixotropy. The effect of shear Card 3/7 S/08/061/034/003/001/017 Effect of the composition of the binder A057 A129 stress on structural viscosity of paraffin-, wax-, and stearin-base mixes is shown in Table 1. Curves on the effect of pressure on structural viscosity fc mixes containing 8.5% of a two-domponent binder demonstrate a similar character of paraffin-wax-base and wax-base mixes, I.e., increase in structural viscosity with pressure. Paraffin-base mixes, on the other hand,are like stearin-base mixes showing thixotropy, i.e., decreased in structural viscosity with Increasing pressure. This property is convenient for pressure casting. Curves on the effect of the composition of the binder on structural viscosity (Fig. 4) show for paraffin-wax base mixes a minimum at 25% wax content in the binder. Structural viscosity of paraffin-stearin-base mixes increases withAhe stearin.content in the binder. for a pressure range until 16,000 dyne/cm2 (F;lg. 4~. Structural strength of casts decreases by adding stearin to paraffin-base binders. The optimum composition for pressure casting was found to be 85% paraffin and 15% stearIn binders. The greatest strength is observed in casts based on paraffin- wax binders. Surface-active oleic acid decreases the structural strength.- but has a positive effect on the fluidity of the mix. Optimumlamount of oleid acid admixture is 3 weigbt % of the binder. Curves obtairied.for the casting'ability of mixes under pressure (2-8 atm~, estimated by the cavity-filling test, are linear and indicate that stearin-containing mixes have a much higher casting Card 4/7 -S/080/61/034/003/001~Q;7 Effect of the composition of the binder ... A057/AI29 z_ ability than paraf f in- or paraf f in-wax-base mixes in spite of the higher viscosity of stearin-base mixes measured on the viscosimeter. Thus it can be stated'that structural viscosity data are insufficient for the selection of optimum oomposi- tion if obtained only at small rate gradients. Also Engler's viscosimeter is not convenient for estimations of the quality of cast mixes. There are 7 figures, 2 tables and 6 references: 4 Soviet-bloe'and 2 non-Soviet-bloc. SUBMITTIED: September 30, 1960 Table 1: Value's for the structural Viscosity of mixes at 800c: shear' Viscosity stress (In dyne/cm~2) (poise) at Type of binder in the mix 2,000 6,000 10,000 12,000 Paraffin 75 60 60 - Wax 127 145 155 157 Stearin 3,000 1,080 520 320 Card 5/7 PENIKOVSKIY,'Ladimir Vladimirovichj SAMSONOVI G.V., otv. red.; TREgVYATSKIY, _5,G._, prof., doktor tekhn. nauk, otv. red.; POKROVSYMA,'-Z-~~., --re-J-.,- YEFIMOVA, M.I., tek:hn. red. [Effect of radiation on metals and certain high-melting materials] Deistvie oblucheniia na metally i nekotorye tugoplavkie materialy. Kiev, 17,d-vo Akad.nauk USSR, 1962. 182 p. NIRA 15:7) 1. Chlen-korrespondent Akademii nauk USSR (for Samsonov). (Metals, Effect of radiation on) (Materialn, Effect of radiation on) VT,SIffATSK.1-Y, _S.G. 113ome mathematical interrelationshios r)bs,.,rvrd in gintering high meltlmg C.-ides." Paper presented at the Powder Metallurgy Conference Smolenice, Czech. 17-20 Sep 1962 YERMENKOY V.N.,, otv. red.; FRANTSEVICH, I.N.p red,; SMISONOV, G.V., red.; PISAMZKO,, G.S., red.; FEMCHEVKO, I.M., red.; TRESVYATSKIY, S.G., red.; IVASHCRENKO Yu.N.,, red.; POKROVSKAYA,'-Z.~,'j red.; RAKHLINA, N.Pep tekhn. red. [Surface phenomena in melts and in processes of powder metallurgy] Poverkhnostnye iavleniia v rasplavakh i pro- tsessakh poroshkovoi metallurgii. Kiev, Izd-vo AN Ukr. SSP, 1963. 377 P. (MIRA 17;3) 1. Akademiya nauk URSR, Kiev. Instytut metalokeramiky i spetsiallrjykh splaviv. 2. Institut metallokeramiki i spetsiallrifth splavov ki Ukr.SSR (for Yeremenko). YE,HMrP-,NKOP V.N., otv. red.; FRANTSEVICN, I.E., red.; Sk.=NOV, G.V., red.; r(A.; FIEDOITIOIKO, 1,11., red.; TRESYIATSKI',,S.G., red.; PiASHUIENKO, Yu.116., red.; POK-ROVSKAYA, Z.S.) red. [Surface phenomena in melts and processes of powder R.-etal- lurg-v] Pove-.-khnostnye iavleni-ia v rasplavakh i protsessakh poroshkovoi metallurgii. Kiov, Iyd-vo AN USSR, 1963. 456 p. (14IRA 18:1) 1. A&ademiya nauk URSH, Kipir. metal.3nLreramll- -' spetniallyVkh splaviv. ", Institut metallokeramiki i spe- taialln,ykh splavov AN Ukr.SSR (for Ivashchenko, Yeremenko) M-m-'r- M5~ 777"-. debermi7led, as Ix-is their electrical resistivity at 1400C. "Pie crystal-optical pr,)Pt-r-- '"EM v- OR :~Nl '-'55N~ X 4;50 WT, -RM-R! Z-Mves aar.& ca rn ce- OT ~Rh i i , 0 N515 5-A EN . . ..... ORION' MW`~ 4 system motaUc W, 1963. Voprosy* teo-cli i primenoniyaredkozemej'ny*kh n-t.*-Wlov (Prowe.:.i3 in um U'-M;ui:y - 'i" ~.( eart-1, maialil - mabnfalv* Mlogoow, lzd-va Nauka, 1964, 159-162 rL~ qr i np~ s Lne of eatigauons at me S,, 6Le 11, i;-~ rii, -)r. ~;n-- rrardnrrnations, as weLl as tne iip-icius -A ! TT ED -ul 6 L) E N m OEM 81 IN 15261-65 ACCESSION INR: AT4048710 rt c 1400 4w Card 3/3 a gucLOSUR& 01 b t SC T La III 40 WL 18~- 'joa. wt- rA2133 Figure 1. PhiLse tbagT,,Lrj of the 1 -aq(),Cr,,O, svstym. .......... p- -- -A NAZI. MOM. YAINAK 2 0. F. , S.G. ~Trujvlatsllqi, &PNIP [,6klm. naa- 'Ti PIMA= -~. - Study of the arall-Itizat-2--cm pro-cesa in the -p,-)T:~ela5m ma-6:5. -1-:7 Lr e , rit-I proM. no.2g6C - I I I ~ .3 04. , j C~~ e S D 1 2 DD C I F U ade-quately st,,--idled- Othe-. alithorg have es-t;ablished the, dependence -n, ~- - , ~ , - :~r- ! .,- p - I at I v I tleF, L 41217-65 17 7 ~,qp RPYIWWR--~ MOM- Prr -*lm-1111, 2 -E R, W k PARKHOIENKOp M.A, [ParkhomerAo m.p.j; YAREI/"PNKo Z.A. [ILremerik-o. Z.0,J; TRESTfAMY-I-7. S.G, [Tj' yi. S. H. I resviatslk- , Wev synthetic minerals of the mica group. Dop. AN 11FOR no.5:6.24- 627 '64. (MIRUI 17:6) 1- Irl3titut- metallokeramiki i spetsiallnykh splavov AN UkrSSR. Predsta,krleno aleadamikom AN UkrSSR I*N*Frantoevichem [Frantsevych, I.M.], i085b_66 Err M W /['-'~'P` V ~/ T/Plo,"t/RP( k )/EWP( b )/L'W A\' c_'P c 'Irvifm ACC NRi APS028715 SOURCE CODE: UR/0363/65/001/011/1878/1882 q il I ~- ~- V 7 1- C-- - AUTHOR: aj;s~4y emenko, Z. A.; Lc L~.M.; SokolovrA:i V.' A.; I V_a~ G. Tar Karpanko. V. Ya. ORG: Institute of Materials Science Problems, Academy of~Sciences SSSR (Instittl problem materialovedeniya Akademii nauk SSSR) pe c ase stals TITLE. Some physicochemical properties of synthetic ii 1 single cEZ SOURCE: AN SSSR. Izvestiyao Neorganicheskiye materialy, v. 1, no. 11, 1965, 1878-1882 TOPIC TAGS: magnesium oxide,-~ingj,!~__pry~t~kl. ystal 2Rtic or ABSTRACT: Th Ie-mi.crohardness, microbirttlenesgi, chemical stability, transmission spec V trum, and working of synthetic magnesium oxide (periclase) single crystals were stu- died. The crystals are characterized by microhardness isotropy which amounts to 926-946 kg/mm. They are more stable to attack by acids and molten alkali metals thpn are polycrystals.or sintered MgO.- Single-crystals plates can te diffusion-welded/lit 1600720000C with a holding tJ'me of 30 to 60 min, and the weldirg seam obtained is op- - tically transparent. Heat shock causes splitting of the single crystals along the cleavage plane. HgO single (mystals are suitable materials for prepariqg optical win dows, lenses, and prisms for the 0.3-7.0 v spectral range not only-at low but pro- UDC: 546.46:548.55 Card 1/2 IL ACC NNi APS028715 10 i also at high temperatures as well. This must be verified by further studies. 'Objects made of MgO can be polished by combining mechanical and chealcat methods of treatment. Orig. art. has: 5 figures, I table. ORIG REF*. 002/ OTH REF-t 000 SUB CODE. 11,07/ SUBM DATE,. 24Apr65/ CID tit 1:19257=46 EWr(l)/ ACC NRa kp6ool-303 SOURCE CODE: UR/0363/65/001/008/1368/137 S. AUTHOR.- Lopato. L. M.; Yaremeriko. Z. A.; Iteavyatsk G. gmy of Rej ~:es I rSSR (Institut problem 1 ORG: Inatituta of Afatgrials Science Problems,_&qo Pne materialovedenlya Akademii nault UkrSSR) TITLE: Study of the optical properties of compounds formed in the systems LnZO,3-SrO and Ln203-BaO SOURCE: AN SSSR. Izvestlya. Neorganicheskiye materialy, v. 1, no. 8, 1965, 1368-1371 1 TOPIC TAGS: crystal optic property, strontium compound, barium compound, samarium compound, europlum compound, gadolinium compound, terbium compound, dysprosium compound, yttriurn compound, erbium compound, thulium. compound, scandium compound, lutetium compound ABSTRACT: The optical properties: of crystals of type SrLn 0 and BaLn20 where Ln Sm, Eu ~0- 4powders by tte ,, Gd. Th, Dy,, Y, Er, Tm-,Lu, and So, were studie n immersion method and on polished sections. The refractive indices of SrLaq0A where Ln = Sm, Eu, Gd, Tb, Dy, Sc were-Within the range ol'values exhibited by the orWal 2jides2,7whereas the refractive indices where Ln =*Y, Ho, Er, Tm, Yb, Lu were higher by an average of O.Od This indicates that the crystal lattices of these two sets of compounds differ In some res.", 1/2 UDQ 546.651431 + 546 L 12057-66 ACC NR1 AP6001303 even though the structural typa Is the same. ne crystal-optical characteristics show that these compounds belong to the,calclum ferrite type. On the basis of the data, the existence of a now type of substructures is postulated for compounds of this class. These substructures belong to the rhombic class of eynunetry, but have a hexagonal-type unit cell. Orig. art. has- j figure and 3 tables. SUB COPE: 07, 11/ SUBM DATE: OlApr65 ORIG REF: 002 OTH REF.- 007 Rare' E'aAh ilements_.6.~5 jr7 Card 2/2 LOPATOp Lol4s; YANOM,~-Z&A,j TMSVrATSKnt Mo (Treaviatolkyi# Bails] Interaotion of rare-earth-oxidet-irith strontius oxide# Dops AWMA--nosIlt-2493-147 1656 I (MIRA ldtl2) 1# Institut problsm materialovedeniya AN WSM. L L�2~-66 EWT(m)/T/EWP(t) IJP(c) JDIJG ACC NRs AP6007250 (A) UR/0363/66/002/002/0269/0274 ~3 )AUTHOR: TresvyatskIZ, S.G.; Pavlikov,_.V.N.; LoRato,_L.M. ORG: Institute for Problems' of 14aterials,AN UkrSSR (Institut problem material-ow-e-Uenlys. 11 UkrSSKJ I ~TITLE: Phase diagram of the system S0203-~~,r223 55 -11 _ SOURCE: AN SSSR. Izvestlya. Neorganicheskiye materialy, v.2, no.2, 1966 269-274 - ------- TOPIC TAGS: scandium compound, chromium compound, alloy phase diagram, ."J-os J,..+ 44A.6'4-,.~_ 4- k Al-t ABSTRACT: IPha6.e'Jra1Jzf2rm1a&10n_0 In the scandium trioxide-chromium triox. ide system were studied In samples subjected to heat treatment in a high temperature furnace in an argon atmosphere. A phtographic investigation was made by the conventional method with penetrating and reflected light in the latter case with the use of etching in a melt of KHS94 at 20000 q for 2 to 3 min. An X-ray Investigation10was made on URSma55aPand URS-70" apparatus. Infrared spectra of the alloys were obtained on UR-10 spectroscope over an interval from 400-700 cm-1. The'change In the oxid( content during heat treatment was controlled by conventional chemical ,analysis. The article gives a phase diagram based on the experimental results, a table showing the X-ray results, and microphotos of the sam- .1 Card 1/i~_ UJJ(;; Si4i .145.e L 238o5-66 ACC NR. AP6007250 ples. There was observed the existence of a compound which melts at 2130t 3000. The probable (,,.omposition of this compound is: Cr203/Sc203 1:3 or 1:4. The initial oxides form solid solutions based on chromium oxide with a specific solubility of chromium oxide in scandiUM Dxide is 10 mole %. With a decrease In temperature the specific solubility de- creases to 17 mole % scandlum oxide and 5 ;Ole % chromium oxide. Orig. art. has: 6 figures and 2 tables. l SUB OODE: 11/ SUBM DAT13: 05JU165/ ORIG REF: 005/ OTH REF: 008 Card 2/2 . ON 11, ON` M- i~_. N~ Ns, L-36402-66 EWT (m)/T/EWP (t)/ET1 JJP (C) JD A6CN_Rs A-P'-6018776 (A) SOURCE CODE: UR/0070/66/011/003/0459/0463 AUTHOR: Tresvyatskiy, S. Yaremenko, Z. A.; Lopato, L. M. ORG: Institute for Problems in Materials (Institut problem materialovedeniya) TITLE: Crystal optical properties of synthetic periclase single crystals SOURCE: Kristallograflya, v. 11, no. 3, 1966, 459-463 ITOPIC TAGS: crystal optic property, single crystal, x ray diffraction analysis, ab- ~sorption spectrum ABSTRACT: Large single crystals of periclase were grown by directional solidification and their crystal optical properties were studied. The directional cooling resulted im columnar crystals having the crystallographic growth axes 94, 93 and g2. Cubic shaped crystals adopted 94 as the growth axis while 93 and 92 were typical of elongated crys- tals. The crystal dimensions along the growth axis were 50 mm and 20-30 mm along the cross section. Generally, the synthetic periclase crystals were transparent; only in some cases did they appear cloudy as a result of micropores, (0.01 mm) or mic=cracks. Photographs and micrographs of the crystals are shown. Negative crystals (gaseous in- clusions having crystalline forins) were observed and micrographs taken in the center of these showed a continuous mosaic structure. The crystals had a glassy shine and a Kohx hardness of 6. Chemical analysis revealed an impurity concentration of 0.01. to*0.5%; Card 1/2 UDC: 548.0 : 535/32 L 36402-66 ACC NRi AP6018776 (f7 further re Al, Fe, Si and Cr were the residual impurities. Vacuum annealing to 220010C further re duced the impurities. Refraction and birefraction were observed to occur in the crys- tals. X-ray measurements gave '4.212t0.002 A as the lattice parameter of the primitive cubic cell. Chemical and thermal etching was done in order to bring out the mosaic structure (0.1 to 0.01 mm) and the screw dislocations emerging at the surface. Fur- ther x-ray analysis showed the mosaic block dimensions to range from 0.01 to I M, the angle of misorientation to be 50 and the dislocation density to be about 105-106 cm-2. The absorption spectrum of the magnesium oxide crystals was measured for wavelengths ranging from 2 to 25 p. From 2 to 6 u the absorption was absent, from 6 to 10 is it dropped shuyly and ft 10 to 25 u it was very strong. orig. art. has: 6 figures. SUB CODE., 20,11/ SUN DATE: MprW ORIG REF; 902/ OTH PEFt 002 rd 2/2///,.,~/:~' 'N. EVITW/EwPMATI IJP(c) JD Uk/66/66/002/007/1240/1243'. ACC NRj ii~p6o23917 SOURCE CODE: AUTHOR: Shevchenko, A. V.; Lopato, L. MT.; Tresvyatskiy, S. G. ORG: Institute of Materials Science Problems, AN UkrSSR (Institut problem materialo- veden3`y`a__X77Jk_rWR7 TITILE: Phase diagram of the GdZO~-Crpl~ system SOURCE., AN SSSR. Izv. 'lleorg-laterikly, v. 2j no. 7, 1966, 1240-1243 TOPIC TAGSz gadolinium compoundv phase diagram, chromium compound, chromium oxide ABSTRACT., X-ray, microstructurall and chemical analyses as well as iru'rared spectros- copy were used to study the phase relationships in the Gd203-Cr20j system in the 1600-1 24000C range. The phase diagram obtained is shown in Fig. 1. It is shown that the system contains only one congruently melting chemical compound, GdCrO~,, which has a melting point of 235)�300C- The compound forms eutoctics; the eutect.'.c with Gd2c,-A is .Cic 1 comoosed of 77 mole % Gd20~A and 23 mole % %0~ and melts at 206#2001.,; the eutect, vrith Cr203 is COMPOsOd Of 15 mole ','0' Gd2~ and 95 mole % Cr203. and melts at M&300C. Some physicochemical properties of gadol niwn chromite (density, coefficient of linear thermal expansion, crystal optical proportios) woro determinod. Orig. art. has: 3 fig-~ ures, UDC L 46242-66 ACC NR, AP6023917 0 23D0 - 8*1 N Fig. 1. Phase diagram of the 2100 Gd2O3-Cr2D3 system. GdZC~ A; GdCrG3 B; Cr203 C /so#- ./S00, to 30 so 70 so GdjOj It. ve, CrOj ISUB COME 07/ SUIIM DATE9 21Jun65/ ORIG MF: 004/ OTH RU s 002 SOURCE CODE: UR/0363/66/002/007[ii44/1247~ Ir AUTHOR: Pavlikov, V. N.; Lopato, L. AM.; ORG: institute of 11-Taterials Science Problems, Academy of Sciences, UkrSSR (Institut problem materialovedeniya Akadomii nauk UkrSSR) LA TITLE: Study of the phase diagram of the Y2(~-%03 system SO(JRCE: k1 SSSR. izv. Neorg materialy, v. no, 79 1966, 1244-1247 TOPIC TAGS: phase diagram, yttrium compound, chromium oxide ABSTRACT: The phase diagram of the Y?03-Cr20~ system was studied in the 1800-2500*C rangeo apparentiy for the first time. The diagram (see Fig. 1) was plotted on the basis of petrographic and x-ray structural studies of samples subjected to heat treat- ment in argon. It was found that the system contains only one compound of composition 1:1, melting congruently at 23104-300C. The comDound undergoes a partial thermal dis-~ sociation in the solid phase, which causes the maximum on the fusibility curve to be diffuse. The compound forms two eutectics: one with Y2C~, composed of 72 mole % Y2C~ and 28 mole % Cr2C' and melting at 2020300C, and one with Cr2 .3 -03, composed of 80 mole % Cr2G3 and 20 mole % Y2(~, melting at 207Oi3OOC. No solid soltLtions were observed in the system. Orig. art. hass 3 figures and I table. Card 1/2 UDC: L 46241-66 ACC NRt A 023918 e " c YG rO3 Frl I CrUA vrpn. 1. Fig. 1. Phase diagram of the ZVOO - -,Zivvv Y2C~-%03 system Cr, 03 t ycroj Y203 "YGP03 L I YZ Oj V M.Wwsamw mpg . -MO14L.%7 SUB CODE: 07/ SUBM DATES 110ot65/ ORIG REFs 00i/ OTH RM 005 hs Card 2/2 _ L 46125-66 ETI IJP(r.)- JDjJG ACC NR, AP6028203 SOURCE CODE: UR/0078/66/011/006/1442/14J~5_~ AUTHOR: Pavlikov, V. N.; Tre atskiy sy 1ORG: none TITLE: The Nd203-Cr2O3 system 0 77 -.,,1 SOURCE: Zhurnal neorganicheskoy khimii. v. 11, no. 6, 1966, 1442-1445 TOPIC TAGS: phase diagram, phase composition, niobium compound, chromium oxide ABSTRACT: The phase diagram of the Nd203-Cr2O3 system was studied in argon atmosphert in the 1800-25000C range. Samples varying in composition by 2-5 mol % were prepared by threefold fusing of powdered mixtures of Nd203 and Cr203 for 2 hrs at 12000C. The structures of various samples were examined on th 4,1ES-55 x-ray machine~oa~d the tem- 60 peratures were measured with an. optical pyrometer%PPIR-0 17.1t It was found that only one compound, niobium chromite--NbCrO3, exists in the Nd203-Cr2O3 system in the 18007 -25001C range. The NbCr03 has a melting point of 23300 and a density of 8.06 ' 0.02.' g/cM3. Niobium chromite was found to form one eutetic with Nd203 which is composed . of 76 mol % Nd2O3 and 24 mol % CrZ03 with a melting point of 2060 ' 300C, and one eu- tetic with Cr203, which is composed of 78 mol % Cr203, and 22 mol % Nb203 with a melt- ing point of 2100 ' 300C. It was found that there are no phases in the Nb203-Cr2O3 system which contain divalent chromium. Orig. art. has: 2 figures, 1 table. SUB CODE: 07 SUBM DATE: 20Nov64/ ORIG REF: 002/ OTH REF: 007 Card 1/1 TC! UDC: -54f).657-3lt546.763-31+541.123.2 L 02Y~;3-W Wt e) /194qTtm)/bwrk 3 )/T Larku Ivvrf/ [U-1/ VVn ACC NRt AP6032957 SOURCE CODE: UR/0363/66/002/010/1897/1899 AUTHOR: Tresyyatskiy, S. .; Boychun, V. Yu.; Yaremenko, Z. A.; Klimenko,_V. S. ORG: Institute of Problems of the Science of Materials, Acadeny ~f Sciences A UkrS (Institut problem maEerlalovede-nrya AkaTemii nauk UkrSSR) TITLE: Some properties of foamed quartz glassib SOURCE: AN SSSR. Izvestiya. Neorganicheskiye materialy, v. 2, no. 1-0, 1966, 1897-1899 TOPIC TAGS: quartz, quartz glass, foamed glass, thermal insulation, lilt 1 1 naW pd- i n1% heat insulation, 4-1 insulat- ing material 9i-4S.S -W50LR-r10,J OX,9s.7 AevAPe7Y , PojeoS-Ilry RCS'ismoor, al_ns-s 1 .1 ABSTRACT: Some of the physical properties of foamed quartz gi s have been studied to determine its prospective use as aheat insulating materialkat high temperatures. The material obtained had a'density of 0.3-0-35 s/cm-1 and an actual porosity of 80-85%, 20 to 30% of which were closed pores. Large pores with a diameter of .5 to 2 mm were seen; small closed pores with a 0.1 mm diameter were situated in the wall of largerpores. The foamed quartz glass contained no crystalline phases. Its refractive index was 1,455 ' 0.001. Compressive strength, determined on cubes of 10 x 10 x 10 to 20 x 20- x 20 mm, was the range 40-70 kg/cm 2 at 20C. Thermal con- ductivity was in the range 0.1160 to 0.250 kcal/m.hr. centigrade,. The heat resistanc, Card 1/2 UDC: 666.19+666.189.3