SCIENTIFIC ABSTRACT SEROVA, F.G. - SEROVA, N.A.

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December 31, 1967
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SCIENTIFIC ABSTRACT
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SEAOM, F Faraday effect in a relativistic electron 9" F, (;~ SCIA-6 ((;,Nkl 11.6god. In.t.). 1.48P11. As. Is. 7&s-4(lq4s).-ljy u,111. of the lin4c equatiolt for an elm- Iron moving in a homogrnet)w magnetic fidd. the depetul- ruce of tile MiAxnetic moment of the clecuAm on its Velkwitv. ond. finther, The insupietic snoceptibilitv of the electi-i it... It I the nwriurtic rowflon of the pldItV Of 1-31ATUAN-0 11"41,111-11f ViTtO I. A10 Vsttl~l. TIIV 111tAtkIn t. -11.011 116 1~ INAIIIAIL11Cdc, even (hough tile rk-Cuoll %"1 1, 1'.114 IIIAKIlclic. 111C noorctativistic exprMnioll for the 1114glictit- ow.otwir lxjwef is R"vrate up to very high electron vrlwi- I i.-. N. *I'll,,,, 15-2 106~_ _iCCNRt AP'0073i16 SCMZC~_-~ COD-L: Ih/6126166' f/ AUTHOR: Serova, F. G. Gorkiy Pedagogical institute im. M. Gorkiy (Gorlkovskiy pedinst-itut) ORG: TITLE: Theoi-j of thermal conductivi of single valence metals _~T_ (6 SOURCE: Fizika metallov i metallovedeniye, v. 21, no. 2, 1966, 161-165 TOPIC TAGS: thermal conductivity, phonon interaction, electron interaction, metal property,'Debye temperature ABSTRUC2; '-'he ther..-,n.' conductivitY of sin.-It, valence for abo,,e the Debye t mperaturi) is theoret._Joaiiy calculated, includ-;*..-.--- the effec~.~ of elacti-1--i entrainment by phonons. The derivation is based on the simultaneous solution of the kinetic ecuations for the electron and phonon distribution functions (E. H. Sondheimer. Proc- Roy. Soc. 1956, A234s 391). After considerable mani-Pu-1ation and simplification the thermal conductivity for the case of small electric fields and temperature gradients is derived as the sum of three terms X0. 2 Mk'2 7*,E 9 hl k4 ()s .xf- Card 1/2 UD"; 539.292:536.01 L 40302- ,~-C-C NR- AP 2 kO2Tm's'v (E) Te f 311,- h3 (normal nomenclature) where x e, XV and x y are the contributions of the electron conductivity, the phonon conductivity, and the conductivity due to phonon enturainlMent! of electrons respectively. It is Shovin that the mutual electron and phonon entrain- ment has practically no effect on the overall thermal conductivity even at hi~~h temperatures so that the expression for the electron thermal conductivity can be used! with sufficient accuracy to represent the total conductivity. The author thanks Professor.A. G. Samoylovich or reviewing the results. Orig. art. has: 25 formulas. SUB COM: ?-0 , It / SUBM DATE: 20jan65/ ORIG REF: 003/ OM aEF: 004 Card 2/2 Popillskiy, R. Ya., Serova-, G. A. SOV/131-58-9-6/11 TTT'E: On Some DejtrJction Frocesses of Hil- ly Refractory Y'aterials -,h L - Under the Influence of High Temperature and of a Variable Gas Medium (0 nekotorykh protsessakh razrusheniya vysokoogneupor- nykh materialov pri vozdeystvii vysokikh temperatur i pere- menroy gazovoy sredy) PERIODICAL: Ogneupory, '1958, Nr 9, PP. 421 - 424 (USSR) ABSTRACT: This paper gives an account of the findings concerning the stability of highly refractory materials in the checker chamber of a plant. The checker works in 2 cycles which alternate every two minutes. In the first cycle, the checker chamber is heated by the combustion of methane up to a temperature of 1750 _ 1800 0, wherea", an oxidation medium is existing. In the second cycle iLethane, hydrogen, and carbon act in a re6eneration medium the temT)erature falling to 1500-16000v in the coldest part of the checker chamber at cycle change even down to 1500-13000. The following refractories were tested in a sm-11 testing plant:1) re- fractories on the basis of recrystallized alumina comprising Card 1,L1 corundum, both pure and wit, additions, 2) refractories &)!I S07rie Destr-,!(,tion Pr~)cesses of iU6,hly Ref-rar-tory SOV/1 31 -56-9-6/11 1 Ma 'U er Z gals UnJer the D:fliience of ffit~h Te"'Iperzature- and of a Variable Gas blediur"I fro;:,, zirconium dioxide stabilized by CaO and CaO + IA670, 3) refractories from beryllium oxide, both pure -nd with additio.rs, 4) refractoriej on the basis of silicon carbide. All tested materials on t'-,e basis of pure oxides proved to be insufficiently st:-Jhle, as is seen from figures 1,2,and 3. Only refractories on the basis of carb=urdum Gave satisfactory results (F-'Zs 4,5). It was found that the carborundum materials which are stable against the conditions of re- generation are to be re-garded as suitable for the checker chamber. A definite selection of the most proper tvpe of carborundum cj-.eck_-rs will not be possible before extended investigations are accomplished. There are 5 fig'Ures and 3 references, 2 of which are Soviet. ASSOCIATIO't': Khimiko-tekhnologicheskiy institut in.Mendeleyeva (Institute of Chemical Technolo6-y imeni Mendeleyev) Card 2 2 15(2) -~Ta Y- SO:C- ill R ki P AUTHORS: - .- -.1 s r op y, TITLE- Thc- Action :,f Some Adm~ztir-:os D-axinC, ttle P'-rQdUSti'-)n Of Cr~~StO- balites Froic (~-iartz-c-a-nft (0 1--.1-0tcryb-11 dobavcl' pri polache!,--li krist-cb-A"ta -z f-eska) PERIODICAL: L Nnu~~hnj-yo doklad-y j~,ssht~y shkuly. F-rlim;ya 4 kh-'ril-cheFTkaya tekhnologi:~q, 1919, Nr '-!', pp 190--~--j3 (USSR) ABSTRACT: According to (Refs 1-3) t,ristohnlitc Jis usqd as a f--'11ir,- agent fcr gfipsum moulds for th,-? pr;,clsf.on casting ol'noa-ferrous ta-s and the-- all:~y-'. 0-11stobalte -;,3 rot tichnl.r~llly I-ro- mc , duced in the USSR. The works rf s,+, --uthors 0113 z us sed (Refs 4-4), which partly propose methods, the tenlintical realization of wh4.eh 4-c tor, anrl partly operated with *tion of --nde., whil:!h resulted -411 L 2,.-')qenjrZ of the the sole adalf - -' nt-3 ind the f e-f trid5rmllts . The sand f nrmecl - result ci-r t-he aftdit-ion of reo -~.rd ca", in the I : 49 , 3 -..1 Rf.:~ Z- r 3 13 -. ir 0 -ng as it 4% ~1-nas-s-lcne be- in Ith' w,-,rk. l-- Ta,3 es tsbl shod the tests thal: a ,~f reO + 'Qr-0 1,~` `nc:t-aases the ~f the r0u-:~o the y-feld a-~h stren ' d 1/' C . , -fte tri th~,, of the glazing of crint-oba7 - ar . Thp- Actica, cf A,L----'x~,,Lirc:, D-uninj; the of Cmistoballteq From p 2, -.,1 S" e 7 .- -J- - ~ U .; but ffr3t of -13' through z?~ rc-L' ct-on of t-'-,-e eff~,,ct rif the addr-c! a adding 1% lTalco L 3 ar + a procni';t conteilt ~,f 'Y; te -,xav ned. should be carric-i -,ut a-t fif 1300, '1400 and --hould be as Ehort as -'n r,-dor t,~'-~- c. r- f. 1-1 h c t r7, f o r in a-; c ii 0 V .2 r -,.'3 ', - bq- 1 i t e o -i-.- Tli:~rz, -77e 1 !7--**,~-,-l~-t,('.s Iand 9 n2f~~remes, Cf PRESENTED BY: Kafpdra kera.ifid'k-'. 7. (Chuir for Ceramics ane of Techn-21~,Ey Imeni D. 1. Mer-4einye-) SUBMITTEDs Dectimber 31, 195S Card 2/2 YELISEYEVA, A.M., doktor med.uauk- SMVA, G.A.- LIRINA, T.B. t:~~ t . ............... --- Treatment of stenocardia with nitranol. Vrach.delo n0.7:755 JI '59. (MIRA 12:12) 1. Kafedra fakulltetskoy terapii (zav. - doktor med.nauk A.M. Yeliseyeva) lvanovskogo meditsinskogo institiita i Olbastnaya kli- nicheslon-ya bollnitsa. (ANGINA FECTORIS) (ETHANOL) u Cr '312 Qu. ar t zSand for -470 (USSR) Y) 1, r P 442 . of Produf;-inv, oristobalite from quartz sand has VAit Union. Only Kavnarskiy c-i.4-c-eied o:,Ii~3d -La the So-.riet -, n hij --ily aluminous Dinas bricks from pure ,,,,-La:ctzites which contained cristobalite up ~o -Is made by the authors have shawn that xp r J men a 4!naply from chalcedony. The C -00 q,:a.,--z saad of the Lyuberett~y depo-,f 2- TL 7. 3;1.:- -iver.. The quantity of e 4r, ba.Ked samples was ascertained by the di--ato- d azd ly di?'e-m-, a'-o.,i of the spec- -r- c-, wei-ht. th-e ~.---a~version of T -,Ubp--'4 quartz sand -nt 0 hea,-,-'~ng the- -Iorrior uT) to eu least 16000. B-~ rhis conve::-sion Is attained at 14000 as By Ir.-quet-~ing Lhe swaples and hearting them ap t~~, cc)n-en~ more than 9W. is attainee., o~-. C-f T,:"Oul quartz SLM'17 f.:;r V/1 31 -59-10-7, .10 -the propert_i~.s of these briquettes at Of fzc~'a '900 to 14000 as vrell as ior --Ae -,,d.l is. Ta ird.L ates the cristoballite after the-i- bah-inog at '14000, and fioura i,,ii cros 'L II! 3_rJ-L K"-Iiographic analyses were at Ve Vaesoyuznrj institu- _71-Union Inrtiture for Refractories) (Foot:2u-;,~' L indi:-1,at,2s tha phase state of the briquettes _cning at Figia:-e 2 shous the dependence o:.~ 3 '.a co-tent of bric~ue'tes on the quantity Co_n(~ilusioa~,,; The -jr~-_-lAples underlying the _pi:odl_-:.~A~,n of c(:mmercial cristobalite from quartz s and a;' , L- By .-~_dding Na 2 CC,-i the time and temperature of burning Iipa- bt: to 1350-14000. The rjl.,:-,P_n,~~ cf previous'.,T quartz sand proved to be f,_-.,0Tabl,?, but it cihoul(t bo taken into 3ccount thet i_e;,-_.~s~,L:~y tomaiintad:,i the anarerial within the 2'1~1_ffllcle - 00-`4000 c~'Dl,: a- Ifsy as Possible in order to e c~ u.7%Lnt- t-.raxlsitior, c~L~ crictobalit-e into tridymite, At a cf Cristobalite From rMartz Sand for SOV/1, 31 P~.zrposes favorable composition of the mineralizer and short stay within the range of final temperatures, a commercial product with a cristobalite content of 85-90 may be obtained. It '-s easily baked and crashed, and exhibits considerable There are 2 figures, 5 tables, and 25 references, 19 of which are Soviet. Khimiko-tekhnologicheskiy institut im. Mendeleyeva (Institute of Chemical Technology imeni Mendeleyev) 3/123,,6 1 /000, 005/0 i 1/0 17 A.( .)(j4/AI04 AUIHCJFIS,. fopil'skly, R.Ya,, Serova, IT UP On Scme propertle-s cf gyp-surp-silicic molding materi-als for the rre~~t~~ion cas.-~Ing of nrn-f~rr-c.z melalz FERICD-.14,-AL Re-fera-.ivn-pj zh-irna! nc: 5. 1961, 2", abstrac--~ -;.,181 '"'r Mosk khirr -*.crkhnc~l in-ta im D,-- Mcndeleyeva", 1959, no, 27, 247 - 259) T-EXT Th~ have lc-!.c-rmine:J ,ne -41-a-ome-ric chara-r-eris,Acs of gyp- - 1: -ling down to S~Jm S I I i c mixtures Jui-Ing hc-a'lng, 8000~- anJ subsequen cco roc,m empe r ~ *- j:"e 7-he mix*ure5 --f ihe high-s,.rength 350 gyP-zum of the Kuyl-lyshev Flan, ~r --,rade 1-- 0 '&DR, and fillers 10 quartz, ground Dinas, -r-is-.cbalite Crl-s-:cali-e a, '22-C - 2~07-,- eff='-f-s .-n In*.ensIve expansion resu7t,- ing from the -ran-zf.-rma-ion ~f 'he Ij ~!~e ~( -,Tcdif1caf-I:r. At 60-80% r,, S -- C.2-311 '.!~ and '40-20% grade 31,0 -n,~ Shrinkawe cf gyps-,.-P not e5- zen-ially affm-- -,n-= -,:-Se -.he d 1-1 --urves -11-- maxin-hm expansion of "I SO% gyr-zL~m -,h-13 va~7ue de- ,:he mJx--;- 71Y~ 5 w I ~70 - - crea!-~es -,f Y, I$ z r 'z~--C) gypSum and 7 .0% card l12 n r:p~r* :f gvE 5,,12.3/61/000/005/0 11/017 AGO LL /A !_ 0 4 D c on t a i :-. i ng r a maxi of 1,08%. Y -ded (r.,um expansion In mi4,_ure_~ he quart,z transf-:~rma?-ion effect frcm the ~3-tc the,~G -ppeart-,, at. 70 0(, Tjj~, VaIlle ()f* total expanalon at 80,00C amount-a tc I i% lhe: Crnlm!in gypz--)m h,9--; a higher 5hrinkage, The ccurse c-l' the dilatometric curves durang ccoling, Is more fav~ratle for cavtIng-s based on gypsum cristotalite mix-ure~_ rhe s,_r&ng~,h of' gyps-am_cr!5~.,Dba1i1.e and gypsurn qaartz mixtures is rather 1cw owina rc the mcdIfica-ion ~ranZforma,.icns, To increaze the Strength 1-3% low- mel,~ina bor.~n~ lead- s 11 ic ate glass of ihe following composil.lon is added: 70 - Pbo, 20% - B C 104, - 51D2 -~n~_re are 3 fLgures, 2 ~ableB and 10 referenceZ, 2 3' M, Anuchina [Abstrar~:er' S no,,e -ornpletle Tran-sla-Tulon] Car.! 2/ _2 A.. Cand 7 cl~ Sci (di ss) -- --ation of a process of prod,iciru crystobalit,, in T)rocisJon castin,". Moscow, P-110. ES-7;'S,R, Moscow Order of Lenin Chpm-Tech "'Dle d57;`A-0Dll.~-nt o' a m-'holl and inves- as 'ill-r for --ypst-,-.n forms lc~, up ('.1in lligh-r and Int,~r Spf-c ~,,duc Inst im D. I. Mend-lvev), !.P-0 copies M, ~,O 09691 S11311611000100310011001 B105/B206 AUTHORS: Vinogradova, L. V., Makarova, T. S., Rutman, D. S., Poluboyarinov, D. N., Popillskiy, R. Ya.. Serova-,- G. A. TITIZ: Manufacture of sintered ceramics from magnesium oxide PER10DICAL: OgneuPO711no- 3, 1961, 123-124 TEXT: This article describes the process of manufacturing thin-walled, sintered crucibles and shield tubes for thermocouples from magnesium oxide. This process was elaborated at the Podol'skiy zavod ogneupornykh izdeliy (Podollsk Plant for Refractories) jointly with the kafedra keramiki (Der)artment of CeraTnics) of the Khimiko-tekhnologicheskiy institut im. Mendeleyeva (Institute of Chemical Technology imeni Mendeleyev). The crucibles are intended for metal smelting. The initial material was commercial magnesium oxide 'with a content of 98% MgO, the preparatiiq of which (firing temperature and mode of crushing) was ,t o r1k L - -d out according to previous studies. Commercial magnesiun. in powdery form is first fired in molds at 13000C and then finely ground in a vibrating mill by means of steel balls. The powder was plasticized by Card 1/2 896011 Manufacture of sintered ceramics ... S11311611000100310011CO'L Bl,15/B206 means of paraMn with an addition of oleic acid. The shaping of crucLbles and shield tubes for thermocouples from magneslun oxide by the "freezing-on" method permits the manufacture of products with a wall thickness of 5-0.3 mm. After Partial burning out of the paraffin at a temperature of about 2000C, the products were fired in a regenerative medi,am (H2) at 17000C in an electric 'Lurnqce with a molybdenum coil. The firing time was 5 to 6 hr (2 hr in the high-temperature zone). After sintering the average weight by volume of the products was 3.36 to 3.38 g/cm and their apparent porosity 0 to 0.4 ;-v; the white products showed good tr~inslucence. Pyrometric ceramics produced from magnesium oxide in the f orm of shield tuves for thermocouples and capillary tubes, permits temperature measurement up to more than 20000C. The relatively simply process permi-ts the manufacture of products for use at high temperatures, the waste being ver-j small. There are 1 figure and 1 Soviet-bloc reference. ASSN: Podollsk Plant for Refractories - Vinogradava, L. V., Makarova, T. S., Rutman, D. S. Card 2/2 Inst. Chem.. Technology im Mendeleyer - Poluboyarinov, D. N., Por):Lllskly, R. Ya., Serova, G. A. BALKEVICH, V.L.; SEROVAY G.A. 14ethods of evaluating the structure of carborundum heaters. Trudy ,SETI no-37:180-184 11 '62. (MIRA 16.12) Acmssiai im: AP4013187 S/013V64/000/002/0082/0089 AUrHCR: PoluboyarinavP D. N.; Bashkatov, Ve A*; qerg Golubeva, Ye* Ve; Shlemin, A. V. TITLE: Testing of hiahly refractory insulaticra materials in lithiUM VRPM at high temperatures in a vacuum SOURCE: Ogneupory*., no. 2, 1964, 82-89 TOPIC TAGS: insulation, insulation material, insulation material testing., lithium vapor, refractory insulatica material, high temperature material testing, insulatim material alkali metal resistance ABSTRACT: In respect to the effect of alkali metals ca refractory materials at high temperatures., tests have been ecaducted. ca the resistance of different mate-" rials to -liquid lithium and icnized lithium vapors in a vacuum. Aluminum oxide, calcium oxide, magensium, mdde (pure and with AIQP* admixtures), ziracniun dioxide and certain aWier high-melting materials (zircon, 692cium zircaqjqte, silicca nitride, silicon carbide on a vitreous bcad, silicon carbide cat5-ccYborundum and silicon nitride bcads, as vell as a material with a borca nitride base).served as base materials. Samples of corundum., ziracniun dioxide, magaesiun oodde, aud. cal- Card 1/3 AccEssim NR: Ap4ol.3187 cium cadde were prepared using G-0 technical alumin (98.7% A1203), vhite electrosmelted corundum No- 36 and 280 (95.5% A120 Y smelted technical ZrO stabilized by calcium oxide (91-16% Zr02, 6.11c 8~.. monoclinic Zr02 (98.0~ ZrOO, technical magnesium oxide (98-7% M90)., and calcium carbonate. Samples vere pre- paxea in solid-sintered and granular-porous pieces. The basic results were: (1) corundum, zirconium dioxide., zircon, calcium zirconate, and silicon nitride were affected considerably by lithium, particularly in contact with melted lithium; (2) ina,3nesium oxide and calcium oxide showed greater chemical stability; (3) the chem- ical stability of magnesium oxide 'with A1203 admixtures vas noticeably less than that of pure magnesium oxide; (4) the carbor~ndun samples on a bond of P -carborun- dum did not posseEsthe required electroinsulatiT properties; (5) boron nitride- base samples sha-Ted chemical and thexmal stability. It was concluded that re- fractory materials of pure-aluminum oxide and pure zirconium dioxide, zircon, cal- ciun zirccnate and silicon nitride are not serviceable because of their low chemical stability; however, boron nitride., calcium oxide, and magnesium oxide may be used as insulators. Orig. art. has : 8 figures, 2 tablqse Card 2/3 AccEssim NR: AP013187 ASSOCIATICK: nirniko-tekhnologichealdy institut im, De I* Mendeleyeva (Institute of Chemical Technology) SUBM1=: 00 SM CODE: M,, CH DATi.: AcQ: oa4ar64 No JW sOV: 002 ENCL: 00 OTM: 003 Card 3/3 ACCESSION NR.- AP4040466 510131/64/000/006/0281/0284 AUTHORj Guzman, 1. Ya.; Serova, G. A. vITLE: Porous magnesium oxide refractories SOURCEi Ognoupory*, no. 6, 1964, 281-284 TO111C TAGS: magnesium oxide, magnesia, magnesia refractory, periclase refractory, porous refractory, combustible additive method , periclase ABSTRACT: The valuable technical characteristics of magnesium oxid6 prompted the study of the physical properties of porous magnesium i oxide products as compared with the properties of dense magnesium oxide refractories. A relatively strongo permeable, and highly refractory material was obtained with technical grade magnesium oxide (98.5% 14gO), with 30-60% porosity. The properties of the porous products can be controlled over a wide range by varying the grain size of.the filler, the filler to binder ratio, content and i'Card 1/2 L 41370-66 5VP(e)/EIIT(m)/EVIP(ttETI IJP(c) JD/4H ACC NR. A-Ib'022495 SOURCE CODE: UR/2539/0'4/000/045/0091/0095 AUTHOR: luk-in, Ye. S.; Serova, G. A. ORG: none TIME: Certain thermomechanical properties ofxefractories from fused magnesi oxide 'SOURCE: Mloscow. Khimiko-tekhnologicheskiy institut. Trudy, no. 45, 1964. Issle- idovaniya v oblasti khimi-L i 'ekanologii silikatov ~Studies in the field of silicate 1-95 !chemistry and technology 96 ry ITOPIC TAGS: magnesium oxide, thermonechanical property, refracto JABSTRACT: Some -ohysicomechanical properties of refractories prepared fron, fused magne-7 ;siuM oxide of various grain distributions containing -99% lr;gO were studied at room tem7 jper~ature and in the range of 1000-14000; 'the temnerature of the start of softening of !these refractories under load and thoir thermpl stability were determined. The effect- iof the addition of various amounts of A120~ was a-so investigated. It was found thatk-, iA1203 admixtures increase the thermal stability of fused refractories, they decreaig r 'u the strength of the refractories at room temperature, but at 1000-14000, the admixt r' in amounts uD to 8% strengthen the material.' The oDtimum refractories from the stand-W j-Doint of strength in the heated state are those containing 2 and 8% A1203. Orig. art.' I~as: 5 figures and 2 tables. i !SUB CODE:, 11~ DAIZ: none/ ORIG REF: 008/ OTH REF: 003 1 - . .1 1 JAUBM L lo698-65 'EWP(e) /EPA W~21KWT (m)/BPF (n ~-2/T/kPk(bb) -~/Bwkb)_ ACCEssioN.Nfu Ap4o47378 S/0294/611/bO2/005/0736/041-- -AUTHORS,., TITLEs On SOURM To plofizika Vy*s0kikh tw4eraturj vo 2j non 5P 1964s 736-741 TOPIC TAGS1 ceramic material., refractory material- material strength ABSTRACT: The properties of refractory materials from GaO were investigated it s high temperatures, including tests of their stability under the action of alkalin metal vapor, The stock test material was composed of CaO and CaC 55.20 ard 03 in - 43-37% respective concentrations with additional trace elements, The influence,of the following factors upon the caking tendency of GaO was studied: 1) the tewer- atures of calcination of the base material; 2) the quantities of TiO2 inputp 3) temperatures and endurance lengths for final calcination of-rafractories,, and-, L 4) gas atmosphere of calcination. Tables are presented showing the caking charac- teristics of the material with heating at various temperatures for-varying lengths i., a in botheryptolite and vacuum furnaces., Deformation and resistance charac- 7 teristics were also tabulated'at various temperatures as were dilation Coafr d t1i MI! Lukin, Ye. S.; Serova., Go At several properties of refractories from calcium oidde - - - - - - - - - - - - - - - - - - - - - - -- ACC NRs AT6036927 c'OLT. rio TICL' ODE UR/0000/66/000/000/0054/ 62 G. A.; Komissarova, N. M.; Vinogradova, L. V.; Wkmarova, T. S. A UTHORS: Serova ORG: none TITIZ: Periclase refractories based on technical magnesium oxide SOURCE: 11-'auchno-tehhnichoskoyo obshchostvo chernoY metrillurgii. Moskovokoye pravleniye. Vvsokoo[;neupornyye jraterialy (Highly refractory materials), Moscow, Izd-vo 11.etallur-iya, 1966, 51,--62 TOPIC TAGS: magnesiwn oxide, refractory oxide, high temperature ceramic material, refractory product, aluminun oxide ABSTRACT: Results are reported fron the study of production and properties of periclase refractories made of technical 99,":, NgO in the form of grains of sintered briouets. Sintered briquetting material was crushed, freed of iron in-p=-ities, and sieved. A fraction of < 0.5 = was grou:nd to obtain grain size < D.Co' mm, which was pressed into cylinders 36 mm. in diameter and 50 = high. The specimens were fired at 1730C for 1 or 4 hours. The porosity of the samples was 17-11~r,.; they m-intained a constant volume at 1800C and possessed a higher thermal stability than products made of sintered ~~aO. Introducing r,~ 8% of Al 0 increased considerably 2 3 the thermal stability (two to four times the number of thermal cycles). These Card TURIYAN, Ya.I.; SEROVA, G.F. Polarization in the polarographjr of the pyridine complexes of nickel and cobalt Lwith summary, in Englishj. Zhur.fiz.khim. 31 no.9:1976-1982 S '57. (MIRA 11:1) l.Kishinevskiy gosudarstvennyy universitet. (Nickel compounds) (Polarographv) (Cobalt compound) 76-10-5/34 ORS. `211r yan Y;I.. I. Sorc".-Li ., G,r, U'_'H - ----------------------- nposi ticn. and the Instabi- H2IE A PoL!rcL_,,Li.hJ_c lnve-iti.- --tion _,,f the Go I lity Cun~;~ ants of P-ridin,:2 of Nickel (Polyaro-rafiches- i S ~; 1 i C ricstoyl-osti; piridinov~fkh ni~:c PERIODICAL- 17 Vol. `1 , T'r 10, pp. 2200-2205 7ussiz) I A3STRACT; I'h~2 results of t"c ~)aper of the authors in Zhurnal Fizi- c h e s !k, o y K h ira i _J 1 c) 5) 3 1 0 P ~ 19 7 n the basis of 0,1 and KITO .;:ithout --Latinn L~rl.~ ex-nloi-ted here for the determination Of th~ c~Df.-.-Po3ition ~;nj tne i n s t,%'.,,i 1 i ty const.~_-nts of the pyridine of The f.!f2:tsurin.- temperature was 250 Vc. I .: + 0,3 11he her,3 found rel-It,,ion ,ic! potential of the half-wave ( T'1210) ;-.,r,,-. the corip1exfo=Mer (pyridine) con- conrrutic-n is ~i % pprc-,rez the simultaneous elec- ~he coEiolex ion as well as :)f the sif.~r)io ion_-1. PC-- t'he determination of cor:ipIt.:,: and of the corre2pond-ing instabi- Card 112 lity constaits t-an -.vcfre !tppliadl Lere, one of Deford and Y TITT,-,~: Polarographic Kinetic Currents Caused by the Rct;:~rc~er-, Formation of Rhodanic Complci-es of '7icl---l (Polyarogr--fic)-,es1