SCIENTIFIC ABSTRACT KRIPYAKEVICH, P.I. - KRIPYAKEVICH, P.I.

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SCIENTIFIC ABSTRACT
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18.1200 A,18.9200 TT679 sov/148-6o-1-2//-411 AUTHORS: Kripyakevich, P. I., Tylkina, M. A., Savit3kiy, Ye. M. TITLE: New Compound In Rhenium-Zirconium System and Its Crystal Structure PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy. Chernaya metallurglya, 1960, Nr 1, pp 12-15 (USSR) ABSTRACT: In addition to hexagonal ZrRe2 whose lattice con8tants were nown to be a = 5.251 kX, c = 8.576 kX, and mp 8 " two of the authors found a new compound of Zr2 Re composition with mp 1,9000 C. In order to study this and other Zr-Re compounds by X-ray methods,.7 different Zr-Re alloys were prepared containing 68-32; 73; 81.29; 83; 88.96; 90.25 and 96% Re, respectively. The mixed powders of two metals were compressed into briquets,, sintered at 1,5000 C in a He-filled ar 8 Card 1/5 furnace having 200 mm. pressure, annealed at 1,400 C New Compound in Rhenium-Zirconium System 77679 and Ito Crystal Structure soy/148-6o-i-2/34 for 10 hrs, hardened from the same temperature, annealed again at 1,0000 C for 50 hrs and hardened from this. ZrRe. proved to change its lattice con- stants from a a 5.273 kX and c . 8.636 kX to a 5.2F9 kX and a - 8.608 kX at the change In the alloy compocition somewhere between 6.8-32%.Re and 13% Rej still further increase of the Re content did not affect the lattice constants of ZrRe 2' The alloys with 83% Re and 88.96% Re begin to show diffraction lines of a new body-centered cubic phase X in addition to those of the X -phase of ZrRe2 composition. The new phase constitutes the alloy with 90-25% Re completely. The alloy with 96% Re shows oqually intensive diffraction lines of the cubic phase and of pure Re. Annealing and hardening at 1,,4ooo C did not alter the phases readily existing in the sintered alloys, while hardening of the alloy with 73% Re from Card 2/5 1,0000 C gave rise to the appearance of diffraction New Compound In Rhenium-Zirconium System 77679 0 - 1 WWI TO CrYt"01 lines other than those of the above phases. The newly discovered body-centered cubic phase proved to have a = 9.693 + 0.005 kX and a = 9.626 + 0.005 kX in the alloys cont9ining 83 and 90.25% Re, respectively. The lattice constant, changing with the Re content, points to the transitional nature of this phase. Its chemical formula would be Zr 5Re 24 if the atoms of' two metals were distributed in a perfect order like, for instance, in Ti 5Re 24, However, its structure, similar to that of a -Mn (space group 1 43 m), permits occupa- tion of any atomic position by Zr or Re and this leads to the change in the composition and lattice spacing. The increased Re (atomic radius 1.37 kX) content on the expense of Zr (atomic radius 1.60 kX) reduces the lattice constant. The Interatomic distances in the body-centered cubic phase are given in Table 2. The mp is 9out 2,5000 C and the micro hardness about 1,000 k9/cm . Zr-Re form the only binary alloy in Card 3/5 which X - and X -phases coexist. In other similar New Compound in Rhenium-Zirconium System 77679 --and Its Crystal Structure sov/148-6o-1-2/34. I alloys, X -phaze excludes -phase instead of which (7 -phase appears. The Zr2Re compound is, according to the preliminary data, believed to have a structure similar to that-of 0--phase. There are 2 tables; and B references, 4 Soviet, 2 Polish, I German, 1 U,S. The U.S. reference is: P. Greenfield, P. A. Beck, J. Metals, 1956, 8, p 1, 265. ASSOCIATION: Llvov State University and the'Institute of Metallurgy at the Academy of Sciences of the-USSR (Llvovskiy - ~ gosudarstvennyy universitet i IrEtitut metallurgii A14 SSSR) SUBMITTED: November 4, 1958 Card 4/5 New Compound in Rhenium-Zirconium System 77679 and Its Crystal Structure SOV/148-60-1-2/34 Table 2. Zr 40) zf (e) Re (t.) Re (g.) Zr 3.05(4) - 2.92(12) Z r 3.; (1) 2 .68(3 ~ 3.18 (3 2,90(6) 3.12(3) Re (g 2 68 1) 2.88 (6) 2 6 1 (1) 3 IS 1) : 1 2 0(2) 7 : 2.81(2 Re (gJ 2,92(1) 3 12(l) 2, CA 1 2:90(2) 2,70j2) 2.58(2) 2,87(2) Card 5/5 24-7100 78102 SOV/70-5-1-111/30 AUTHOR: Kripyakevich, P. I. TITLE: tals With High Coordinatiol". Numbers PERIODICAL: Kristallografiya, 1960, Vol 5, Nr 1, PP 79-83 (USSR) ABSTRACT: Some 250 known types of structures of metals and intermetallic compounds can be classified by space groups, stolchiometric formulas, density of packing, or the type of chemical bonds. The author prefers, however, the use of coordination numbers of atoms for this purpose, 3ince they predetermine the form of coordination polyhedra, the ways of' occupation of the lattt,-ri I verticet zirld, consequently, any type of atructure. Thus, he distinguishes 7 classes of structures, each det'ined by Identical or closely similar coordination polyhedra: Card 1/7 tetrahedron (c.n.4); octahedron (c.n. 6); trigonal The Structure of' Metals With High CoordInation (8102 Numbers SOV/70-5 -1 --L 1/ prism (c.n. 6); cube (c.n. 8); twisted (Thotnscnl~tn', cube (c.n. 8); cuboctahedron and Its hexagonal counterpart ~c.n. 12); icosahedron (c.n. 12). As the basisof structures with high coordinatlor-. numbers only icosahedron (la, Fig. 1) and its distorted variety is analyzed along with triore complex polyhedra with 12, 13, 14, 15, 16, 17, 20, 22, and 24 vertices (Fig. 1). The symmeti-ieLi the shown polyhedra and the crystals In which they occur are: (1) m3, Cr 3SI; (II) T2m, CaZn 5 ; (III) tv- 3, M92 Zn 11; (IV) mm, M92 Zn1j; (V) m, Th 2 Zn 17; k U-Mn; (VII) m, Th (VII) nim, MgZnll; (IX) 6Mn23; 6mm, V 2Ni; (X) mm, T12CU; X1 m3m, T116M1123; (XII) 62m, 4 -W 6Fe7 ; (XIII) '~3m, MgZn2 ; (XIV) rrim, mgzn,; (XV) 4mm, Th Mn (XVI) 4./mmm, Th 6 23; M1112; (XV"' Card 2/7 CaZn5 ; (XVIII) mm, BaCd 11; (XIX) 4 , NaZn 13- Al Met'-13, Witt] High C~)~Jrdlrlatjor( 5-1 -1 C) V7 0 the polyhedra are convex except ILV, VII, VIII, and XI, which have reentrant corners. Polyhedra III, IV, V1, VII, X) XIV, TO XIX have 1-6 quadrangular and 14-32 triangular faces; all the others have only triangular faces. Polyhedra I, TX., XII, and XIII are l l d l c ose y re ate because of equal 112) number of vertices at which 5 trIangular faceu join together. They frequently occur combined and are veiy Abundant The affinity of structure types is reviewed in 4 ' divisions: (1) most closely relat.-ed, (2) very closely i related, (3) c1 os ely-related, and (4) least closely related. Division (2) includes tlie structures in which atomic positions .are ident-loal but are occupled by the ccristituent atoms R and X differently and where the number ot' atoms in, and the symmetry of, unit cells may or,may riot differ; (2) includes .the structures of' compounds with identical formulas such as of ApBrC3D,- or R X type and those with m n Card 3/7 jii,2 ,;-.,vuct.ure or Metalv With High O'cordinatlon -118102 N u i n b r,, Ps SOV/'70_5_1 1 1 --11/30 neav,ly identical polyhedra where the iiymmetry,and number of atoms in unit cells may differ,; i13) include3 the of compounds W11th identleal formulas, ident Ical coordination polyh.,2Jra, but with diff'erlng atornic positions; (4) in-,Iudes the structures (a) wnere the sums of rd inat, Ion numberu afid coordiivitlon polyhedra In the uritt cells are identicul but the numbers of atoms with identical coordination numbers and chemical formulas differ, and (b), where the coordination numbprs and coordination polyhedra are Identical only for a part of the constItuent atoms and the chemical formulas differ, All the structure types with high coordination numbers obey cne rule: the number of' at.oms with maximum (;oordination number drops with 'the increasing value, of the maximum and, consequently, thr- mean coordinatlor, nimber remains almost constant, varying only within a lluilted range from 12.9-13-5. C a rd 4/7 Ye. 1, CrIady.9hevskly is acknowledged for discu3sions. The Structure or Metals With High Coordination 78102 Number3 SOV/70-5-1-21/30 There are I figure; 2 tables; and 33 references, 13 Danish, 8 German, 7 Soviet, I Swedish, 1 Italian, I Polish, I U.S., I U.K. . The U.S. and U.K. ref- evenees are: W.- Roatoker, J. Metals, 11, 2, 209 (1952); G. Bergman, J. L. T. Waugh, L. PaulinF,, 'Nature, 16q, 4312, 1057 (19~2). ASSOCIATION: Llvov State University imeni I. granko (Llvovskly gosudarstvennyy universitet imeni I. Franiko). SUBMITTED: July 13, 1959 Card 5/~ The Structure of' Wtals With High Coordination 78102 Numbers SOV/70-5-1-11/30 On 6 IV y rile x1l rill N?M XY XY/// XLT Card 6/Y Fig. 1. (See caption on Card The Structure of Metals With High Coordination 78102 Numbers SOV/70 _5-1-11/30 Fig. 1. (a Coordination polyhedra for coordination numbers 12-4, 11., 111, IV), 13 (V, VI, VII, VIII), and 14 ((ix, x, xi); (b) coordination polyhedra for coordination numbers 15 XII), 16 (xiii), 17 (XIV, XV), 20 (XVI, XVII), 22 ~XVIII), and 24 (XIX). Card 7/7 XRIFTAUnCH, P.I. Structvres of ck.-Mn and, A-ft, Mristallograffts 5 no.26.273-281 Mr-Ap 160. (MIRA 13:9) lo Livovskiy gosudarstvennyy univereitat im, I.Irranko, (Manganese) KRVTIJWICH, P. I. Crystal structure of the compound TA12- Kristallografila 3 no.3:463-464 MY-Je 160. (MIRA 13:8) 1. Llvovekiy gosudaretvanmy universitet im. I.Franko. (Yttriuvi-aluminum alloys) 82505 S/07o/60/005/004/005/012 7/00 ti32/&36o AUTHORS: Gladyshevskiy, Yeol. and Kripyakevich P.I. TITLE. The Crystal StructurJoi the Compound Li,,Gel, PERIODICAL: Kristallografiya, 1960, Vol. 5, No. pp. 574 - 576 TEXT; Two compounds in the Li-Ge system were discovered by Pell We Phys. Chem. Solids, 3, 1-2, 74-7, 1957) - "Li4Ge" and Ll 3Go with m.p.-750 0 -v-;. 10 0 and 8000+, 100, respectively. Crystallograpliie-considerations sKow the correct formula of thev~ former compound to be Li 15 Ge4. X-ray powder photographs were taken of alloys containing 14, 17, 20, 23 and 25 at. % Ge. The compound with 20710 Ge was shown to,be a mixture of Ge and "Li4 Ge". This compound was cubic with a = 10-761 + 0.002 KX and invited comparison with Cu 15 Si4 (a = 9.694 Kx) a-nd Na 15 Pb4(a = 13.291M). Intensities were calculated with this structure and compared well with those observed. The sttucture is then one with Z = 4 and space groups 143d = Td having 12 Li in 12(a) Card 1/2 82505 S/07o/60/005/004/005/012 Ela24E~ The Crystal Structure of the Compo n i0 Gel 15 k positions; 48 Li in 48(e) positions with (x,y,z) = (0.12, o.16, o.96); and 16 Ge in 16(c) positions with x = 0.208. The Go atoms are 12-coordinated with a polyhedron intermediated between an icosabodron and the hexagonal analogue of a cubo-octahedron. Li I are aurrounded by a deformed cubo- octahedron; Li atoms are surrounded by a 13-gon similar to (3) the configuration around Mn . in alpha-Mn. The structure is close packed. There are 2 tables and 3 references: 2 English and 1 German. ASSOCIATION: Llvovskiy gosudarstvennyy universitet im. I. Franke (L'vov State University im. 1. Franko) SUBMITTED: January 25, 1960 Card 2/2 82506 S/07o/60/005/004/006/012 k3 70? E132/E360 AUTHORS: Kripyakevich, P.I and Gladyshevskiy, Ye.I. TITLE: The Castal StructuresAf Certain Compounds of Palladium,with Magnesium PERIODICAL: Kris t allograf iya, 196(;,V~01. 5, No. 4, ~pp- 577 - 579 TEXT: No eompounds of Pd and Mg have been found hitherto. Alloys were prepared by fusing Pd and Mg under argon in a corundum crucible with an H.F* furnace. The t9ermal treatment was concluded with 250 hours annealing at 400 C. X-ray powder photographs were taken with Cr radiation. Two compounds were found. PdMg is cubic with a ='3.16 +-0.01 KX and a primitive lattice. IIntensities calculated for a CsCl-type structure (Pm3m- 0 h) agreed well. An alloy with 45 at- lo' Mg contained neither.Paig nor Pd. It was tetragonal with a = 3.02 4+ 0.01 KX and c = 3.41 +-0.01-KX . These values suggest an AuCu type structure and intensity calculations confirmed this. For -the composition Pd 1.1 Mg0.q this gives, Card 1/2 82506 S/07o/6o/oo5/oo4/oo6/ol2 The Crystal Structures of CertaiFH209unods of Palladium with Magnesium in the space group P11/mm- , lPd in 1(a) positions and O.9Mg + O.lPd in l(d) positions. In an alloy with 65 at. 96 Mg lines of PdMg and of a further unidentified compound were observed. Similar compounds have been found in the Pd-Zn and Pd-Cd systems. Pr There are 3 tables and 7 references: 4 German and 3 English. ASSOCIATION: Llvovskiy gosudarstvennyy universitet in. I. Franko (Lfvov State University im., I. Franko) SUBMITUDso Janu#jry,;.29t~,Aq6o--.-- Card 2/2 28714 S/021Z61/000/008/009/011 D2lO/D3O3 AUTHORS: Teslyuk, M.Yu. and Kryplyakevych, P.I. TITLE: Crystalline structure of the compound 1491nCu4 PERIODICAL: Akademiya nauk Ukrayinalkoyi RSR. Dopovidi, no. 8, 1961, 1039-1041 TEXT: In a previous investigation the authors together with Ye. 1. Gladlyahevskiy (Ref. 1: DAN, SSSR, 85, 81, 1952) found a ter- nary compound NgSnCu4t with a crystalline structure of the type M9Cu2- As tin and indium have very similar atomic radii dimensions (1.58 and 1.66 1 respectively) and are situated next to one another in the periodic table, the authors postulated that in the system Mg-In-Cu there should exist a similar compound MglnCu4- In order to confirm this supposition they. prepared an alloy of Mg (99.999%) and copper (99.9876) in a corundum crucible with LiCl + KC1 flux in a resistance oven. After the alloy had cooled to room temper- Card 1/4 28714 S/021 ,/61/000/008/oog/dil Crystalline structure of... D210/0303 ature it was studied by means of X-rays. The radiogram of the alloy-powder, taken with copper cathode filtered rays in a Debye camera showed the lattice constant "all to be 7.059 � 0.006 19 which is similar to that Of M9CU2 (7.019 R). However, the presence on the radiogram of lines hko + k X 4n, lines which are not typical of the space grouping of MgCu2' proved that the 7 structure O"IgInCu4 did not belong to the space group Fd3 - Oh but to that F 2~3 m - T2 d9 the same as MgSnCu4, The X-ray data are given in a table. It is seen from these data that the intensities, calculated for the space group of MgSnCU4 (4 Mg. in 4(a), 4 Sn in 4(c), 16 Cu in 16(e) with 2 a 5/8) are in good agreement with the observed ones. Thus the existence of a ternary compound MgInCu4 has been confirmed. Foreign lines in the radiograms of MgInCu4 are very weak and very few. They belong to the at-phase (a solid solution of magnesium and indium in copper, a . 3.64 X) Card 2/4 j Crystalline struoture of 28714 8/021/61/000/008/009/011 D210/D303 and to some other phasep probably a low-temperature-modifioation of Cu 9In4s In the lattioe structure of MgInCu4the Mg atoms have the coordination number 16 and the Cu atoms that of / 12. Inter- atomic distances with the same c.n. (dmg-In~ 3.06 R: dCu-CU 2.49 R) are smaller than the corresponding sum of radii (,F-r). The distance Mg-Cu and In-Cu (2-93 A) is larger than .5 r for Mg and Cu being approximately equal to Zr for In and Cu. The increase in the lattice constant "all of MgInCu4in comparison with that of MgSnCu 4 (7.044 9) and the increase in interatomic distances are due to the.exchange of smaller tin atoms for the larger ones of indium. The compound MgInCu 4 is one of the small numbers of re- presentativee of Laves phases with atoms of eub-groups III - VB in positions with c.n. 16. Indium, atoms occupy these positions together with Mg atoms; where complete replacement of Mg by In takes place a compoitnd of different crystalline structure is formeds that of Cu21n, of N12In type, The series MgInCu4 Card 3/4 Crystalline structure.oX.o. 28714 8/021/61/000/008/009/011 D210/D303 MgSnCu4 has no continuation. When indium or tin is replaced by the nearest elements of the II or V periodioal groups (Cd or Sb) no ternary inter-metallic compounds are formid. There are 1 table and 7 referencest 3 Soviet-blbc and 4 non-Soviet-bloc. The referencoB to the English-language publications read as followe3 P.J, Black, Acta orystallogr. 8, 1, 39 (1955); H.J. Beattiet F.L, Ver Snyder, Trane.Am.Soo.Met.,45*397,(1953). ASSOCIATION% Llvivstkyy dellhavnyy universytet (L'viv State University) PRESENTED: by Academician A UkrSSR, V.M. Svyeahnikov SUBMITTED: December 26, 1960 Card 4/4 AUTHORs TITLEs 28715 8/02 61/000/008/010/011 D210YD303 ~kovy~ohs * P~,,! I A ternary L&VOI Phase in the system Mn.oo.Be PF310DIOALI Akademiya nauk Ukrayinetkoyi RSR. Dopovidi, no.8, 1961, 1042-1044 TEXT& On the basis of previous research it was thought that a ternary Laves phaseshould be present in a manganese-cobalt alloy with a metal having a smaller atomio radius than r (1,34 A; cone 12), for In this case the ratio K would be larger RAd nearer to 1.225. To verify this supposition the author investigated an alloy of Mn and Cc with beryllium (r a 1.13 2) the system not having been studied before. The composition of the ternary Laves phase of this system should be Mn (Co Be) and the crystalline etruc- ture to correspond with the MgCu2 0i MgN12 types that of MgZn2 is less probable# because a compound MnBe2 does exist with this Card 1/ 4 28n5 8/021/61/000/008/010/011 A ternary Laves phase ..i D210/D303 type of structure in the binary system Mn - Be. 14 specimens of ?4nOo2 - MnBe2 were prepared, Radiograms of powdered alloys con- firmed the author's assumptions Alloys KnOO0.8BO1.2 and macoo.gBei., were homogeneous with a structure of'the MgCu2 type (cubic face-centered lattioe, space group Fd 3k --Oh 7) the lattice constant "a" of MnCoo.8Be,l.2 being 6.20 + 0.01 L x-ray examina- tion data aregiven in a table. To be certain that the ternary compound found was not a solid solution on the basis of the binary compound MnBe some quarternary phaset containing oxygen or si- lioon contamigitions was introduced during its synthesis. The author prepared another 6 alloys in the series MnOoO.8-0.9U1.2- with MnBe.0 It was proved by X-r~y examinations that none of these alloys were homogensousq consisting of two phases of the MgCU2 type; the first had "a* = 5.93 - 5.98 1 and the second "a" Card 2/4 ten5 8/021/61/000/008/010/011 A ternary Laves phase D210/D303 near to 6.20 Is the $am* was.6f9und in alloys having 33.3 at % Mn and 4.7 - 5.7 at % Be, Thii proved that the phase Mnooo,8_0.9 Be 1.2-1.1 was not a solid solution on the basis of MnBe.. The presence of oxygen in a phase with & MgOu2 structure is not poss- ible, because the oxygen atoms are too small (0.601) to replace Oo or Bet but are too large to fit into the tetrahedral hollows of the structure; octahedral hollows# which 0 atoms could occupy are absent in Laves phase structures. Ohemical analysis gave the silicon content in the investigated alloy as lose than 0.5% b.W4 To discover whether a phase of MgCu type might exist in the complete absence of Big the author irepared some alloys from MOO 2 - W029 in A1203 cruciblea.with a flux K01 - NaClj these alloys did not contain silicon and contained a phase of the MgCu 2 structure, with "a" a 6.20 to These investigations proved that the newly found phase was a true ternary compound of manganseet cobalt and berylliuml the formula was taken as MnOoO.8Bej.2& Th Card 3A A ternary Laves phase..#. intensities examination showed that of Mg in MgCu structure (regular and Be atoms 9ccupy the positions compound the radii ratio k equals 3/021/61/000/008/010/011 D210/D303 Mn atoms occupy the osition system (8 Wl o.n 14 Co of Ou (16(d)l O.n.;2); in this 1.'0, The author expresses his ratitude to Ye. L. Gladyshovskyy for his helpful discussions, f here are 2 tables and 7 references$ 4 Soviet-bloc and 3 non-So- viet-bloc. The reference to the'Engliah-language publication reads as followas M. Hanson$ K. Anderko, Constitution of-binary alloys, (1958). ASSOCIATIONt Llvivelkyy derzhavnyy universytet (L'viv State University) PRESENTEDs by Academician AS UkrSSRj 1#M* Fedorchenko SUBMITTED: September 19 1960. Card 4/4 24938 oi/ 02co 0 8/192/61/002/004/001/004 - D217/D306 AUTHORS: Kripyakevich, P.I., Tylkina, M.A. and Savitskiy, TITLE: Hafnium--beryllium compounds, their crystal structure and properties PERIODICAL: Zhurnal strukturnoy khimii, n. 2, no. 4, 19619 424 - 433 TEXT: The materials used for preparing the alloys were hafnium iodide (impurities: 0.48% Zr; 0.0022% Si; 0.006% Ti; 0.0012% Al~l 0.0037, mg; 0.13% Mo) and beryllium (99.3% Be). Beryllium was further purified by repeated melting in a high frequency vacuum furnace under argon at A pressure of 50 mm Hg in BeO crucibles. Beryllium-base alloys containing 0.0025; 0 005; 0.013; 0.025; 0.10; 0.56; 1.24 and 2.44 atomic % Hf (0:05; 0.1; 0.25; 0.5; 2.0; 10.0; 20.0; 33-ID weight %) were also prepared in a high frequency vacuum furnace in BeO crucibles in an argon atmosphere, but the pressure was increased to 100 - 200 mm. Hg. Card 1/4 24938 S/192/61/002/004/001/004 Hafnium-beryllium compounds*** D217/D306 Hafnium-rich alloys,:containing 7.74; 10.50; 16 80; 20.90; 33,73 and 51,64 atomic % Hf (62 .5; 70.0; 80.0; 64.0; 91.0 and 95.5 weight %) were prepared in an arc furnace with a water- cooled copper hearth and an insoluble tungsten electrode, under argon (300 - 4,00 mm Hg pressure). The alloys were not sAje9teO to heat treatment. X-ray investigation of the alloys was carried out by the powder method in a Debye camera (57-3 mm diameter) and in a Preston camera with chromium irradiation. The follow- ing properties were determined for a few alloys; melting point, hardness microstructure and microhardness of the structural components. The melting point was determined in argon (4oo mm Hg pressure) by the drop method, in which a hole drilled in the specimen is filled with the molten metal and the temperature determined by means of an optical Pyrometer, calibrated with reference to the pure metals under identical conditions. The hardness was measured in a Rockwell machine according to scale B (2.5 mm diameter ball, 100 kg load), the microhardness was Card 2/4 24938 S/192/61/002/004/001/004 Hafnium-beryllium compounds... D217 D106 measured with a PMT-3 machine (100 gram load). The existence or the fol;owing 4 compounds was established: HfBe AlB2 tKpe, a = 3-157 t 0.001 kX c/a = 0.83 t a = 3A775r 0.002 g: t0-010 kg/=,,'-; HfBe Caln type a=4 525t6.010, c = 3-46~= 90 kX c/a 0.45i H,% 1346 kg/mm~; Rf ~1/7, U2Zn type a ~.4~4 0.002, c ~: 21.861 * 0.006 0 A. a = 2.~?lkHt'= 1085 kg/mm ; HfBe , NaZn type, a = 9.985 - 0.002 kX; 1200 kg/mm2. Thel~ are 163tables 1 figure and 19 references: ~ Scviet-bloc and 14 non-Soviet-bloc. The references to the 4 most recent English-lariguage references are:' J.W. Nielsen N.C. Baenziger Acta Crystallogra, 7, 132 (19510. A. Zalkin R.G. Bedford, L.E. Sands* Acta CrYstallogra. 12 91 700 (19~3)- R.P. Elliott, W. Rostoker, Trans. Amer. Soc: Metals, 50, 617 M (1958), J.F. Smith', D . Bailey. Acta Crystallogra, 10, 1+7 341 0~57)/ ASSOCIATION: Llvovskiy gosudarstvenyy universitet im Iv. Franko. (Llvov State University im. I,V. Franko); Institut Card 3/4 Hafnium-beryllium compounds*., 24938 S/192/61/002/004/001/001+ D217/D306 metallurgii im. A.A. Baykova AN SSSR (Institute of Metallurgy im. A.A. Baykov, AS USSR) STJBMITTEDz July 5, 1960 Card 4A KRmAm-,tI-cjf,-P.I.;- -G-IAD-Y-S-H&VS-K-IY,--Y-e-.I. - -- Utruature tM Cllj~i 4- Zb=.strukt,khim, 2 ne.5:573-577 S-0 161. (MIRA 14.. n) 1. Llvovi;kiy gosudaretvonnyy universitat imeni Iv.Franko. (Cryotallography) 20025 NUOD i I 114f J 4154 1 WhAr S/070/61/006/ool/003/011 E032/Z514 AUTHORSt Kripyakevich, P. 1.2-Tylkina, N.A. and Savitskiy, Ye.M. TITLEt Crystal Structures of Hafnium-Beryllium Compounds (A Preliminary Communication) PERIODICALt Kristallografiya, 1961, Vol.6, No.1, Pp-117-118 TEXT: It in stated that the hafnium-beryllium system has not so far been investigated. The alloys prepared by the present authors contained 0-05, 0.1, 0.25, 0-5, 2.0, 10.0, 20.0, 33.0, 62-5, 70.0, 80.0, 84.0, 91.0 and 95.5% by weight of hafnium. The alloys were prepared by alloying hafnium and beryllium in an argon atmosphere in a high frequency or an arc furnace. The specimens were then subjected to X-ray analysis. For some alloys the melting point, the hardness and the microhardness of the structural components were determined. The rAicrohasdn::s H $L was determined with a load of 100 g to within +30 kg/mm u ng a nwr-3 (PMT-3) device. It was found that-the following four compounds are present in the systemt I 1) HfB* structural type AIB sp.gr. C6/mm D,,, a - 3.783.10-002, 29 , ' 2$ 2 c = 3.163�0.001A, c/a - 0-836, H - 980 kg/mm $L Card 1/2 20025 0/070/6L/006/OOL/003/OLL Crystal Structures of ZO32/Z5L4 2) HfBe , type CaZn,, -sp.gr*__C6/mmm D1h' a - 4.534+0.OLO, c = 3.4;1+,O.Olo A, C/^ = 0 765, H L390 kg/NM2; - 3) Hf2Be 17' type U2Zn X;Ogre Cxm2 DL h' a - 7-49~+O.002, 17' 2 c - 2l.qo5�o.oo6 A, c/& = 2.92L, H_~ IOP kg/" 6 4) HfBel.9 type 2NaZn LV sp.gr. Fm3c % , a - 10.00510.002 A, H14 = 1200 kg/mia Thus, the Hf-Ba system is close to the.Zr-Be system from the crystal-chemical point of view. The latter also includes four compounds which are isontructuraL with the above compounds (N. C. Baenzinger, R. 3. Rundle, Ref.2; J. W. Nielsen, N.C.Baenziger, Ref.3; A. Zalkin, R. C. Bedford, D. Z. Sands, Ref.4). There are 4 referencess all non-Soviet. ASSOCIATIONS: Llvovskiy gosudarstvannyy universitet in. I.Franko (L'vov State University imeni I. Franko); Institut metaLLurgii im. A. A. Baykova AN SSSR (Institute of Metallurgy imeni A.A.Baykov AS USSR) SUBMITTED: May 31 196o Card-2/2 GLADYSHEVSKIY, ye.Iq-~~~~~SLYUI, M.Yu.; ZARECHUnK, O.S.; KUZIMA, U.S. Cr7atalline structures of certain intermetallic compounds. Kris- tallograflia 6 no.2:267-268 Mr-Ap #61. (HIM 14:9) 1. Llvovakiy sudar3tvennyy universitet im. I.Franko. rintersetallic compounds) (Cr73tal latt4ces) KRIFYAMICH--Pl Structures of Tbn,, PhNi, ThCo,, and CaAg and their relation to the types CrB(T&B) and TIJ (yellow modification). Kristallografiia 6 n0-4:626-629 n-Ag 061. (MIU 14:8) 1. Llvovskiy gooudaretvomW univeroitet imeni I.Franko. Untermestallic compounds) GLADYSHEVSKIY, Ye.I.; KRIFIAXEVICH, P.I.; KUZIMA, Iru.B.,- TESLYUK, M.Yu. Now representatives of the structural types Yg6Cul6 Si7 and Th6Ha23. Kristallograftia, 6 no.5:769-770 S-0 161. (MIM 14:10) 1. Livovskiy gosudarstvennyy universitet*imeni I.Franko. (1-ray crystallography) S/13T/62/000/008/034/065 A006IA101 AUTHORS: Cherkashin, E. E., Gladishevitkiy, E. I., Kripyakevich,_R_._L_,___ Tealyuk, M. Yu. TI=: The physioo-chemical investigation of the Ce-Cu-Al and the Ce-Mn-Al systems PERIODICAL: Referativnyy zhurnal, Metallurglya, no. 8, 1962, 24 - 25, abstract 81160 ("Dopovidi ta povidoml. Vvivs1k. un-t,", 1961, no. 9,.part 2, 58 - 59; Ukrainian) T1=% X-ray and microscopic anslyses were used,to study the Ce-Cu-Al and Ce-Mn-Al systbms at a content of 50 - 100 at. % Al. In the Ce-Cu-Al*system 4.3% (1'87 at."%) and 1.5% (0.64 at. %) Cu respectively*are dissolved in Al at 500 a;~ 4000C. Ce solubility in a solid solution Al (Cu) is insignificant (4 0%1%). At 4oooC the Al-base solid solution (0-phase) is in equAlibrium with binary (CuAlg and CeAW and ternary (T and T ) compounds. Compound T, has a homo- geneous range, including compou;A CeN4918, and a tetragonal lattice of the ThMn12 type with constant a - 8.85 kx, 0 - 5.19 M c/a w 0.586; it is in Card 1/2 S/137/62/000/008/034/065 The phyaico-chemical investigation of... A006/A101 equilibrium with CuAl21(V and T2. Compound T has a homogeneous range, Including' CeCuAl3, and Is in equilibrium with CeAlj~, CeR121 a) and T . In the Ce-Vh-Al system Ce is not dissolved or only very slightly dissolv;A in Al (Mn) solid solution. At 600 and 5000C, 1.2% (0-59 at. %) and 0.5% (0.25 at. %) Mn respec- tively are dissolved in Al. -At 5000C, the Al base solid solution (W-phase) is in equilibrium with MnA16, CeA14 and T1. Compound T, has a homogeneous range including compound CeMn Al and is in equilibrium with &4 CeAl CeA14, and com- pounds of Mn with Al M T8 The structure of compound T, Is ?e1tragonal of the 2* ThMn12 type with constant a - 9.01 M, 0 - 5.15 kX; c/a = 0.573. The homogeneous range 'of the T2 compound includes compound Ce~W114- Compound T2 is in equi- librium with T1, CeA12 and CeA14- Z. Rogachqvskayh Abstracter's note: Complete translation] Card 2/2 S/849/62/000/000/016/oi6 AOO6/A1O1 AUTHOR: Gladyahevskiy, Ye. I., Kripyakevioh, P. I. ---I-----.--- _ --.I'--- - TITLE: Intermetallic com Ipounds with a 9-uranium type (sigma-phase) struc- ture SOURCE: Vysokotemperaturnyye metollokeramicheakiye materialy. Inst. metallo- ker. i spets. spl. AN Ukr.SSR, Kiev, Izd-vo AN Ukr.SSR, 1962, 148 150) TEM -There are 31 systems of intermetallic compounds with a P-uranium type structure, the so called sigma-phase. The components of these systems are on the one hand elements of sub-groups 4 - 6 of the periodic system, and on the other hand sub-grouPs 7 - 10. A similar diztribu~ion of components is also shown by type oc-Mn and Cr Si compounds. Considering the similar structure-of Cr3Si and sigma phases, ii can be expected'that the latter will also be formed .by elements of sub-groups 11 - 15. This hypothesis was confirmed by the authors who discovered a compound with a sigma phase structure in ternary system Cr-Ni- -Si. None of its binary systems contains a sigma phase, but system Cr-Ni shows a tendency for the formation of such phases, and in system Cr-Si a Cr3S' type Card 1/2 Intermetallic compounds with a... s/849/62/boo/boo/oAM6 Aoo6/Aiol compound is being formed. The discovered sigma phase composition is Cr 13N'5Si2; its constants are: a - 8.769, c - 4.561 kx, c/a . 0.52. A second compound was revealed in Nb alloys with Al, obtained at the Institute of Metallurgy AS USSR by Ye. M. Savitskiy and V. V. Baron. A radiographical analysis shows that the Nb2Al compound belongs to the sigma phase type. Its constants are: a - 9.951 c w 5.18 kX; c/a - 0.52. This is the first sigma phase containing Al. The distribution of atoms In Its structure corresponds to a complete order (the Nb atoms are in locations with coordination number 15 and 14 and Al-atoms with co- ordination,number 12). Crystallcohemically the compounds approach the Nb 3A1 (Cr2S~i type) compounds and sigma phases In systems Nb-Re and Nb-Pt. Moreover, the authors have discovered a number,of ternary systems whose radiographs re- semble.thoBe of sigma phases but are not identical with them. rard 2/2 8/021/62/000/011/010/013 D251/D308 Iyakevychg P. I. AUTHORt Kryp, % TITLE: Crystalline structiAro.of the compound KgCoNi PERIODICALt Akademija nauk Ukrayinalkoyi g5R* Dopovidi, no. Ill 19620 1460-1462 :TEXT: Ternary Hg-Co-Vi alloye.(the sedtion MgNi were p 2-IM9qO2I) pared from 99.,94% Mg and electrolytic Co and Ni by fusion in por--,- lain crtoiblee under a lialide (NaC1 + KC1) flux. The thermal cel treatment consisted of 600 hre at 40000. 1 ray phase analysis-of these alloys revealed the existence of a new ternary compound, MgOoNi possessing a MgZn2 lattice with~Co and NiAn place of Znp and with a 4.848 + 0,003 and c 7.899 0.004 There are 2 :tables. ASSOCIATIONt LIvive kyy derzhavnyy universytet (LIviv State Uni-~. versit;) 'Card 112 S/021/62/000/012/016/CIS Kryp'yabawych, 13.1. and Ypvdokymer~to, V.I. Crystalline structures of --agne a iur- rich compounds in the systems k;r-Xg, Dy-Mg and Y-1-:.- Akademiya n&W-. Ukrayins I koyi P3R. Dopovidi, no. 1962, 161U-1612 Er-Mg alloys were prepared by fus~.-4; 9-,.7,'. "r (z-on- taiai7,F, C.1% of other lanthanons, 0.0" --'e, 0.14-~- a;-,Cl 0.041o ~;uj 1-ig, in a coruTtdum crucible, unLler a cov,r of nolten -CL,'" compc constants, IuN; tvae C6 iI. -nds E~V5M914 and Y.5y'924 were also prc-.are(-I, with Tat- a, equal to 11.24 and 11.25 e,,- e LIvivskyy derzh.&vnyy :niver&yte*,: ':~'Vov versi,,y) ~,- 'u, ~, _ 3- , - I- I. -c r :, , . -il tructures ... 2 -j . , - * e-- . - .. -:) : Dy Frantsevycri, rv ac m-clli;. 2. _-,u. ; -;turuary 28, 1962 - an~ 2/2 33707 S/192/62/003/001/001/002 5' 1 OD D258/1)303 AUTHORS: Kripyakovichl P#I. and Pylayeva, Ye-N. TITLE: The crystal structure of TaNi PERIODICAL: Zhurnal strukturnoy khimii, Y. 3, no. 1, 1962, 35-37 TEXT: The authors confirmed by x-ray analysis the existence of TaNi 21 TaNi (or a compound with a composition near to it), and Ta2Ni; they also defined the crystal structure of the latter. The 3 compounds have been identified by I.I. Kornilov and Ye.N.Pylayeva (Ref.5: Zh.neorg.khimiis in press), being formed in the following reactions; (1) Ta1Ni -71 + 2 f-~- TaNi (1420*0; (2) TaNi e + Ta Ni (15700C); and (3) Ta Ni + 3 Ir- 2 2 (17700C) , where )d is a solid solution of both me tals. Specifically, lOg samples of alloys were prepared by induction melting in an atmos- phere of purified Ile. Homogeneous structures and compositions were en- sured by firstlyg using 9996% pure Ta and 0000-grade Ni, secondly by Card 1/4 The crystal ... S/192/62/003/001/001/002 D258/D303 avoiding the use of crucibles in melting and thirdly by carefully con- trolling the com9 osition of charges. The alloys were homogenized for 1000 hre. at 800 C, prior to their x-ray analyais. The latter proved the existence of the 3 compounds at 8000 0C. X-ray powder photography (Cr K L-L -radiation) of Ta Ni indicated a tetragonal body-centered lattice, with the constants a ? 6.216 � 0.005 2, c - 4.872 1 0.004 1; c/a = 0.784a These constants are similar to those of Ta 2Si, thus indicating for Ta 2Ni a structure of the CuAl type (space group 14/mem - D 18 ; 4Ni in 4WOO 1 2 4h 1/4; BT& in 8(h) X9 /2 + X 9 0), X was found to vary from 0.155 to 0.167; it was accurately defined by photometry of linen 411, 402, 332, and 004 and found equal to 0.158o The interatomic distances and coordination numbers are given, an follows; 33707 S/192/62/003/001/001/002 The crystal b258/D303 Atoms A) Coord,noo Ni-2Ni 2.44) 8Ta 2,64) 10 Ta-4Ni 2.64) ITa 15 M 2,92) 4Ta 3.31) There are 2 tables, I figure and 13 references: 4 Soviet-bloc and 9 non- Soviet-bloc* The 4 most recent references to the English-langunge pub-- lications read as follows: N.Karlsson, J.1nat-MetaX 79, 391 (1951); J.R.Murrays J.Dist.Metalog 84, 4, 91 (1955); P.Duwez and J.L. Taylor, J.Metals, 2, 9, 1173 (1950); and J.S. Kasper and R.M. Wnterstrat. Acta crystallogr. 9, 3, 209 (1956). ASSOCIATIONt L'vovelciy gosudarstvenny universitet int. Iv. Franko (Lvov State University im. Iv. Franko); Institut metallurgii Card 5/4 33TY/ The crystal ... ,j/192/62/003/001/001/002 D258/D303 im. A.A, baykova XN SSSHIOnstitute of Metallurgy, im. A.A. Baykov, AS j USSH) SUWIIT'f ED: .March 2, 10GI Card 4/4 S/.192/62/003/004/002/002 1042/1242 AUTHORS; Gladyshevokly) B.I.,, Kripyakevich, P.I.,, and Kuztma,, Yu*B* T ITILE Crystal structures of terneLry-oompounds with low sili- con content in the system Cr N1 - Si and Cr - Co Si PERIODICAL: ZhurnRl strukturnoy khImii, v. 3, no.4, 1962, 414-423 .,atlc%n is a follow up of a provious work by the TEXT: This investir authors where ternary cormounds were obtained In similar systems with Ifn in place of Cr. It in also intended to clarify the con- dition"s of formation of phases with the P -U atructuree The 148 alloys In the two systems,.contRining no more than 25 mole el S*1,. were heated in vacuum At SOOOC for 150 hr3 or at 11000C for'-30 hra, -They were then studied with the aid of a Debye and Preston X-ray powder cameras nnd an MJIM-C. (MIM-6) microscopes In the Cr - A - 3i system at 6000C a now phase was found with the approximate for- ,,NI2.13Sil.2 and a powder pattern consistent with the mula. Crr Card 1/3 S/192/62/003/004/002/002 1042/1242 Crystal structures of ternary compounds,.. structure of Cr4.25N.25SL1.5o None of the conpounds studied had the Laves (ioes, Wn2, MgCu2, or M9N12) structure* At 11000C the the compound Cr6 SNL2.5si was observed,, with space group F4/mnm and lattice constant; a = 8.7690 c = 4o561 kXp c/a = 0*520o The atruo- ture was found by comptrInt.; the observed intensities with those of several possible atornic eUstrIbutions, Another compound with the formula Cr M S1 and the i -Mn structure or the Au4A1 superstruc- ture was oiser5veg at 8000C.' It has the space group P2 3 and a 1 6o108 Me In the Cr - Co - Si system two ternary compounds were found at BOOOC* One, rr3Co S120 h a the &- -Mn structure or a superstructur 0 oup I;f3d# a = 8*687 Me The other TLSHe24 e spaRe gr Is Cr3.5CO4.OSi2.5 with a structure related to that of P -U* Again no Laves phason wero enoountmrad. There are 0 tableso Card 2/3 .c'/192,/62/003/004/002/002 1042/1242 Cryatal atructuree of ternnry compounda... ASSOCIATIONt Lvovakiy gosudarstvannyy universitet im, Ive Franko (Lvov State University Lm. Iv.. Franko) SUBMITTED: June 26, 1961 Card 3/3 KRIPLMVICH, P.I.; 19MKINEWO V.I. 1w. Crystalline struatures of the compounds B"17 and SrXgi,, Kristallografiia 7 no.101-42 Ja,-F 162. %M`15-sli 1, Llvovgkiy gosudarstvann" universitet im. I. IYanko. (FAgnSSbM JUOYS) (Crystallography) KRrPYAKEVICH,, P.I.; GLADYSHEVSKIY, Ye.I.; PYLAYEVA, Ye.N. Compounds of the type W6F07 in the systems Ta - Hi and Nb - ft. Kristallografiia 7 no.2:212-216 Mr-Ap '62. (MIRA 15W 1. L*vovskiy gosudarstvennyy universitet imeni I.Franko. (Tantalum-nickel-niobium alloys) (Crystallography) S/070/62/0071/U02/016/022 E132/EjL6o AUTHORS: Kripyahe-y-ich-,-P. I. , and Kuz' ma, Yu. B. TITIL: he compounds of rhenium with aluminium and certain of their crystal structures PLRIUDICAL: Kristallogra *fiya, v-7. no.2, 1962, 309 TEXT: ReAl (C-9C1 type with a = 2.88 X) is already known. In equilibrium with Al there is a cubic compound (a = 7.528 1 0.001 X) of the WA112 type. When intensities for ReA112 with the uame parameters as WA112 are calculated, good agreement is obtain;ed. There appears to be a compound ReA12. For 36.3 at-l~ Al, besides Re, an a-Mn-typo phase X was found ( 1 '1;3 m wit h a = 9. 5 8 X) .It may be Re 211A-1 50 ASSOCIATION: Llvovskiy gosudarstvennyy universitet im. I.Franko (L'vov State University imeni 1. Franko) SUMITTED: April 10, 1961 Card 1/1 ZARECHWMK, O.S.; KRIPYAKEVICH, P.I. Crystalline structures of ternary compounds in the system cerim - transition metal - aluminum. Kristallografiia 7 no.4:543454 ii-Ag 62. WRA 1511l) 1. Llvovskiy gosudarstvannyy universitet, imeni. I.Franko. (Systems (Chemistry)) (Crystallography) KRIPkAKWICH Structure of the type ThqPz' described an a pack of polyhedra, Kristalip. ograflia 7 no.5&68&.6" 9-D 162. (MIRA 15:12 lo Llvovskiy goeWaretvennyy universitet imeni I.Fromko. (Crystallography) (Thorium phosphatte) 32818 W0161 14!;41 1418 9/020162/142/001/016/021 MOM AUTHORS: Vaynshtsynt Ze Yes$' Blokhin, S. Us, aM Kripyakovichg P, 1, TITLE: X-ray eyeatrosoopic study of titanium beryllides with a high beryllium content PERIODICAL: Akademiya aauk 935R. Doklady, T. 142, no. 1, 1962, 85-87 TUT j Following Hof. I (S. Yes Vaynahteyn et al.t DANj M, 642 (1960))o the authors investigateal (a) Phases of the system Ti-Mo with a still higher Do content (alloys containing 68p 90, and 93 atom% of Be). (b) The data of Hof. I were checked and defined by increased resolving power of the spectroscopic equipment (APC (m) vacuum longways spectrograph produced at the experimental,:ork ho f the Rostovskiy gosudarstvonnyy univorsitat (Rostov state Un srszty~s).O Alloys were produced by Yes I@ Gladynhavokiy in corundum crucibles in the Tasman furnace in an argon atmosphere. Both emission and absorption spectra were taken. The reflecting (16TO) surface of a bent quarts crystal was used. The method of inclined planes was applied to magnify resolutich up to 10,000 times. Emission spectra were taken with an aluminum anode. A tantalum &nod* was Card 1/ 5 X-ray spectroscopic study ... a a 1101 0 2/142/001/016/021 0 B103 B110 used for the absorption spectra. The experimental form and the width of the Ka line an Go was investigated to examine dispersion of the function of distortion caused by the parameters of the'apparatual and to dot*rilino its half-width* It was found that the Iwo first sampAlso of the allop the max* trigonal structure: a a 7-40 It 0 - 10-84 X# and 0/a 1-463. This lattice is equal to that of Th2Zn 17 (space group R UP Z 3)1 henost it is concluded that Ti2Be 17 is produced (in accordance with Refs 4, see below). It in also possible# however# that solid solutions of TiBe 12 are involved. Those two structureep being very similar to each other (as well as TiBo 2) t belong to the class of densest packages of unequally large &tons with high coorwaition numbers. The line broadening is 0.39 ov, is** j -28% of the natural half-width of the line. The form of the experimental speatza and the broadening were corrected according to 1. Ya. Nikiforov (ISY. AN BOOR, sor. fis.p-21, 1362 0957))- It was found that the shape and the relative placement of the K absorption edge@ and of the last emission lines in the titanium spootra of Ti-Be phases with varying Be content were almost Card 2/5 ,1621142100110161021 0/02o X-ray spectroscopic study ... B103/B11O identical. The alloys investigated are yory.similer with respect to, &tonic interaotiont but differ considerably from beryllidto with a lower Be content (Yigs. lo 2). This variation is a result of transition@ of the jC electron into the portion of the hybridized energy band of the alloy alas* to the 3d energy levels of the main absorption edge. It follows from the.speotra investigated;. (1) a oonsiterable weakening of the superposition degree of energy bands of valence electrons of the alloy components in T12BO 17"Z) a weakening of the hybridization degree of the wave functions in the range of the 3d4sp band of the transition notall &n& (3'' a considerable increase in significance of the role of-B* interaction, This leads to a noticeable variation of the effective difference of eleatronegativities between the two alloy components. Its value can be estimated on the basis of X-ray spectrum data by the r*la- tion between the difference (Ax) of the electronegativities of the components of a binary compound*and the energy distance (AE) (KO 1 05 ,in the X-ray spectrum of the transition metal. Since this value is 4,6 evi the effective slootronegativity of Be must differ in the ' intermstallio compound from that of Ti by approximately 0.6 ev instead of Card 3/5 8/020/62/142/001/oi6/021 X-ray spectroscopic study-,.. 21031DI10 being practically equal, There are 2 figures and 10 references: 6 Soviet and 2 non-Soviet. The two references to English-language publications read as follows: Ref. 2: R. F. Raouchle, R. E. Rundloy Aot& Crystallogr:: 85 0952)j Ref. 4: P- *- Paineg'J, At Carrabinep Acts. Crystallogr 68o (ig6o)w ASSOCILTIONt Institut neorganicheskoy khimii Sibirskogo otdoloniya Akademii nauk SSSR (Institute of Inorganic Chsai Istry of the Siberian Branch of the Academy of Sciences USSR)* Llvovskiy gosudaretvonnyy univorsitet im. 1. Franko (L'voY State University imeni I* Pranko) PRESERM: July 1, 1961, by A. P. Vinogradovv Academician SUBMITTED: July 89 1961 Fig. 1. X-ray K absorption spectra and last emission lines of Ti in TiBe2 and Ti2B 17* Legend; Absolsea: ev. Fig. 2. X-ray K absorption spectra of Ti in TiBe 2 and Ti2Be 17 after Card 4/5 32818 8/020/62/142/001/016/021 X-rayspectroiooplo study Blo3/BIIO oorreation.'for dietOrtioiis' Au6 to parameters of the'apparatue and for the width of the K level of Ti whioh was assumed to be 0-74 ev. Legend: Absolsea: eve A tl pi g.I to to $I 0 to Fig. 2 Card 5/5 FUll?Yj..KL'VTC,II, P.J. (Kryp'lakevych, P.1.1; OL'E2'j",.V, C,.t. P-itil-siv, li.l.] A -- - ---- Crystal Stl-U"tLirs of the Sr6L'23 compound. Dop. '." r,0.11: 1489 163. 17:12) 1. Llvovakly g(,3udarstvenryy univers.1tot. GLADYSHEVSKIYY Ye. I.; KRIPYAKMEHo P. "Some regularities of the crystal chemistry of Vie. rare-earth intermetallic compoundg.11 report submitted.for 6th Gen Assembly,, Intl Union of Crystallography, Rome, 9 Sep 63. Lob or Inorganic Chemistry, Llvov I. Franko State Univ. ACCESSION Nit: AT4035i6o S/0000/63/000/003/0067/0070 AUTHOR: Glady*shevskiy*, Ye. I.; "harkashin, Ye. Yo.; Zarachnyuk,.O. S.; Zalutskiy, I I.; Yevdakimenko, V. 1. TITLE: Crystalline structure of Intermetallic compounds of rare-earth elements SOURCE: AN SSSR. Institut geokhlmll I anallticheskoy khlmil. Redkozemellny*ye elementy* (Rare-earth eleMents). Moscow, Izd-vo AN SSSh, 1963, 67-70 ,JOPIC TAGS: rare earth, transition element, geochemistr y, binary alloy. ternary alloy, Intermetallic compound, alloy crystal structure. zinc. aluminum, germanium ABSTRACT: The existence of compounds of the rare-earth elements with metals, their composition and the type of crystalline structure were investigated, with particu-. lar attention to the similarities and differences between the various rare-earth i elements,as well as between these al wants and their neighbors In the periodic table. The systems of La, Ce, Pr, Nd, Dy, Er, Gd, Tu and Y with magnesium were investigated first. It was found that there are no cipplate analogies In these systems, but that the system Y/Mg Is closer to Er/Mg than to the La/Ce system. In the systems of rare-earth elements with zinc, aluminum and germanium, new compounds were found, the structural parameters of which are given. it is Interesting that cth sy?)2w YMI differs from the system Er/Al and Is similar to the system with ACCESSION NR: AT4035160 1'La, Ce, Pr and Nd. Compounds of La and Ce with Go have rhombic modifications in Iaddition to the totragonal one.' Systems with cobalt and Iron were also Investiga- ted and their parameters are given. An the La/Fe system no compounds are formej. A weakening tendency to form compounds with a decreasing order number of rare-earth elements is also found In many sys tems with-manganese. Finally, the ternary sys- tems cerium-transition metal (or copper)-aluminum and cerium-aluminum-silicon were investigated and their lattice constants are given. OrLgsartehas; no graphicso ASSOCIATION: Institut gookbimll I analitichaskoy khlmll AN SSSR (institute of Geochemistry and Analytical Chemistry. AN SSSR) SUBMITTED: 3lOct63 DATE ACQ: 3GApr64 ENCL: 00 SUB CODE: IC, ES NO REF SOV: 000 OTHER., 001 !.Card .2/2. ACCUSION NR: AP4006584 3/0021/63/000/004/0492/0495 AUTRORt Kry*plyakevy*ch, P. I.; Kus'aa, Yu. B.; Protasov, V. S. TITLZ: Crystal structure of coepounds in scandLum-rh*nLum system SOURCE: AN UkcRSR. iDapavLdL,* no. 4, 1963, 4912-495 TOPIC TAGS: scandLun chenLum system, scandLum rhanLum, compound. crystal structure,i crystal lattice, scandLum ch4nLum alloy f ABSTUCT: Two compounds were found in the scandLum-cheaLum system by x-ray diffraction studies with 4 Debys camera. 'These were: ScRe2 (MgZn structure with, A/mmc_D a - 5.271,� uw A. c -- 8.592 UN A. cla - 1.630) space group P q. . 4 itructure, vU6 'a '~'9. 6S A, space group I 43A - T3d) sc&Feu. (ThRe. In slowly cooled alloys the letter compound exists in equilibrium withlZe. An earlier hypothesis that this system should be analogous to the systems Zr-Re and Hf-R& (due to the close values of atomic radius ear So, Zr, and Re) in the region* of high Re consent was gully verified, ASSOCIATIONt Llvivsky*y dacsh&vny*y unLversyftet (LIvov State University) SUSKITTED: lMajr62 BATS AQQt 03K&yf3 ERCL: 00 40SUB Coast ML NO asp Sawt 003 OlMi 002 I- mu7rAK3vlcqt P.I. ftstanaticii of the stmatural t7pes of intermetAll4a compomda, Mwostrukt.ldft* 4 no*ltU7-136 A-F t63. (HMA 16s2) 1. LIvovskiy Cosud&ntwwn7y universitat imeni ry. hw&o. .(Intometanic acmpounds) (&punogmpby) KRIPYAKEVICH P.10 Systematics of the structural types of intermete'llic compounds (ending), Zhur,strukt.khis. 4 no.2t282-299 Mr-Ap 163, OaRA 160) 1. LIvovskly gosudarst"nnyy universitst imeni Iv,Frankoe (Intermstallic compounds) (Crystallogref6y) GLADrSMSKIYO Te.I.; KUj'F,14" rU.B., KRIPrAKEVICHO P.I. I -MMwMM"MMw- Crystal structures of the compounds Hm3Ni2Sit V3N12Si,, Nb3NL2Siv and of Cr and Ta compounds related to them. Zhiar.strukt,khim. 4 no.3072-379 Vq-Je 163. (K= 16t6) 1. L'Yovakiy gosudaretvennyy universitat imeni Iv. Franko. (Nickel-ailicon alloys) (Crystallography) S/070/63/00b/002/U01/017 2021/9120 ALTHORS: Yovdokimenko V.I., and Kripyakevich k.j__ ITU The crystal structure of ~gnesium-rich compounds in the Loa-Mg, Ce~Kg and Md-14g eyetens Ph,,(IUUICAL: Kristallogrefiya, v.8, no.2, 1963, 166-193 (whore R - La. Co. Pr. ,-i. 1LXT: Alloys of composition R 2ks 17 were piepared by ~ Iting lanthanum (98.48% lanthanum, 1.5% Otrier rare earth elements, 0.029b iron and 3 x. 10-4% cadmium, load, bismuth, tin and antimony)o cerium (98-567% cerium), praa*odym,;,r:. ?r, 1.7% Nd. 0.2% CeO 20 < 0. 2% LA203, 0.002% Cu, 0.01' and i.eodymium (97.07% Nd, 1. 5% Pr, 0.3% La, 1.0% Sm. 0.1% -P. u.i)3% CA) with magnesium (99.9% Mg) under a flux of lithium an". ,AltaSISILM chloride. Debye X-ray diffraction patterns of the s. co,iled alloys were obtained using CrY. radiation. All the line.~ obtained from LA 2Mg 171 and Co 2Mg 17 were indexes on the iines o: hexagonal structure with c/a ratios of 0.986 and 0.992 respect.. The iatice parameters for LA2MS17 were a - 10.3t) and c - 10.., Ynose for C*2M917 were a - 10-35 and c - 10.2b The calcul,,*. card 1/2 Fhe crystal structure of sagnesium- ... S/070/t))/006/UO2/00l/01-* E021/EI2() spec it ic weights were 2.4 and 2.41 and the experimental values '.)6 nrid 2.42 X/cm3 for LA2MS 17 and Co2Ma 17 respectively. rumparison of the calculated and actual intens it ies conl irmed two compounds belong to the Thw-%' 17 ~'e 'at t lc~'T X-ray results of an alloy containing 10.5 at.% neodymium and h') at.'% rr.;%gnesiu= showed that a tetragonal compound with C / a was tur-med. This was of the type ThMnl2 and had parameters Intensities calculated on the basis ~ lt,-31 and c = 5.93 X. ~ 'InMr-.12-type lattice agreed with the *Aperimental values. T h t:ie alloy consisted mainly of NdMS 12 (92.3 &t.% Mg). Tnere are 3 tables. AS-)uCIATION. Llvovskly Igoeudaratvennyy universitet im. I.Franko kL'vov State University Lmoni 1. Franko) 6L L3MITTLL) April 2. 1962 Card 2/2 s/o7o/63/008/002/020/017 3073/035 AUTHORS: Kripys,kovich, Pol., Torekhova. V.?., Zarechnyuk, 0.6. TITLE: Crystal structures of some intermetallic sompounds of Sadolinium m%4 noodym PF-;IIODICAL: Kristallografiya, v. 8, no. 2, 1963, 268 T.,--XT -. Urlier published results of the authors of X-ra), structural investigations on the alloy gadolinium with about ,'30.8 &t.% (60% by w*ight) to have shown that this alloy consists . - - -Oft. 7- ~-- 3/070/63/008/002/010/017 Crystal structures of 9073/E335 ,7oA, by wlight) Fe in the chargel the type Th2Ni (a w 8.50, C . 8.35 A, C/4 a 0-984) compound is the basic cu~onent of the alloy with 89.5 at.% (75.a% by weight) F*. The ranges of hono- --a beinx studied to determino them I W% R x Seneity of these comope W. more accurately. Contrary to the finelings of Novy' Klebez, the authors of this paper found that the compound rich%sl. in Co was Gd2Co 17 (Th2XI 17 type structure, a a 8.37, c a 8.14 A, c/a - 0.973) and not QdCo . For compounds of Nd with Fo, which ;%re in *qulibrium with a~?*t the authors found that their structure was of the type Th 2Zn (a - 8.59, c - 12.47 X, c/a = ;.451). For GdRu 2 14 and Matthias (Acta crystallogr. compto 12, 9. b5l. 1959) found that the structure wbs of the type MgZn !Iowe'ver, the authors of this communication found that it also had a socond molification with a structure of the type r-4Udr *V%,~ nf tha Card 2/3 s/o7o/63/oo6/ooa/o1o/ol7 Crystal structures or .... 8073/2335 ASSOCIATIONSi L'vovskLy gosudaretvennyy universitat, in. 1. Frank* (L'vo'v State University is. 1. Frank*) Inatitut metallurgit is. A.A. Baykova (Institute of Metallurgy in. A.A. Baykov) SUBMrrTED: July 9, 1962 Card 3/3 I KRIFUwMHg-,?jj4L.GLADYSHZVSKIY, Ye.I. Crystalline structures of compounds rich in beryllium in the systems Ho - Be and V - Bee Kriatallografiia 8 no.3VA9-451 My-Je 063. (KM 16:3.1) 1. Livovskiy gosudarstvenW universitet imeni I.Frankoa L 18 ZW(q)/ZWT(Q/M3 AFM/AW JID/JG SI N Iffit AP3004096 3100701631W810OW05951O.", (00, AUTHORS: . KripZakevich, P, - I I 01"7*shavakir, Yeo I. I Zarachnyuk, 0.-& 1 SKIT YevdoK1MenXo' Ve Is; 4 P 1* lei rrankevlch,, U.-Fe TITLEs Some patterns in the hemistry of intermstallic compogndsof rare- ear h metals SOU CE: Kris ografiyat v.-8. no* 4, 1963P 59~-599- PIC TAGS: crystal chemistryp rare earth morphotropic series, isostructural series, lattice, atomic number ABSTRAM The authors have used data from the literature as well as th*JLr own experimental work to studi the intermetallic compounds of rare-earth metalse The aspects studied include isostructures atorphotropy, dependence of lattice constants on atomic number and the formation of tertiary compounds. In view of inadequate data on isostructural compounds, the exact claracter of such series cannot be predicted, but it is thought unlikely that conplete isostructural series will be found for the rare earths (i.e., series including all the rare earths). The compounds will most probably form a morphotropic series of identical compositions Card 1/2 L 18097-63 ACCESSIOA NRs AP300ho96 or a morphotropic series of varying compositions, In most morphotrople aeries' beginning with some pa~icular rare earth, a certain structural type gives way.to, another# as occurs at the boundary between the cerium and yttrium groups., 34ch' series are comonly polymorphouso Successive changes in atomic number lead in some series to changes in both composition and structures The atomic radius, which does not change consistently with increase in atomic number.. Is an effective characteristic in d6termining isostructural and morphotropic series. Compounds of certain structural types that are absent in double systems may show up in tertzar7 or quaternary systems. jAn exalvIle is the existence of compounds of Th Z and 2 n17 EA1 ThMnj2 in the system dfiWii lthouCh they are absent in the system Ce_ah , Ther exist in the related double systems Ce-Fe and.D-Mn. Orig. arts hass 1 figure and, 1 tables ASSUCUTION: Llvovskiy gosudar3tvannyoy universitet in. L Franke (LYov State Univemity) SUMTTEDi lhMar63 DATE ACQs l5Aug63 &NMI ~A SUB CODE% PH No REF sovs o14 OTHZRI (W 2/2 GLADYSHEVSKIYp Ye.I.j KRIPYAKEVICH, P.I.; FWKEVICH, D.P. Crystalline.structure of rare earth metal compounds containing beryllium(RBel3). Kristalografiia 8 no.5t788-789 5-0 163. (MIRA 16t10) 1 1. Llvovskiy gosudarstvennyy universitet im. I.Franko. CHERKASHINP Ye.Ye.; KRIPYkKEWICH, P.I.; OLEKSIV, G.I. Crystalline struotures of ternary iompounds in the system Li - Cu - Al and Li - Zn - Al. KrIstallograftia 8 no.6t 8a-851 N-D'63. (IURA l7t2) 1. Livovskiy gosudaretyennyy universitet imeni I. Franko. KRIPYAK:-VF',H, P.I. [Yxypliakerfohp F,I.]; V.Ya, Oryatalline structure of ternary cor4;ounds in the oystoras Ti (V) - Fe (Co. Ni) - Sn (6b), Dop. AN U14SR no.M1606-1608 163. 17:9) 1. Llvovskiy gosudarstvem*7 univexcitot, Predstavlono akademikom AN Ukr3SR V.11. Svochnikovym (Sviechnykov, Pre / F //I ACCESSMS NRs AP4012569 3/0021/0/000/002/092210915 AUMCRx Xry*p"yakevy*ch& P. I.: Protasov. V. S.; lazlma. Th. B. TITU: Crystal stmatumn of compounds of scanditm uith some trtnsition nota2m SCMCEz 'AN McrRSR. Dopovidi - no. 2 - 1964,- 232-4 5 :tael$ :candium, ScCo sub 2. zircorium-rhenim systamo TOPIC TAGS: matalss, allaysp hafrAum-rherAux system. soan~ Aum systems X-ray diffraction So Ma sub 2 ABSTRACT: In former work by the authors (Dopovidi-AN UkrRSRg 1963, 492) the structural analogy between the system So-Ra. on the on* hands and the systems Zr-Re and Hf-Ro, on the othor hands was established* In this instance the structure of alloys of So ulth Mne Co, and Cu was investigated by the X-ray diMaction mathod. The wdstence of the following compo=ds was established and thoir structure determined: Sc% (K ,g% type, a a 5-03 As a = &19 As c/a - 1.63); soco, (mgcu2type, a a 6.89 A); ScCo (CsCl type, a = 3,26 A); S*CU (CsC1 typos, a = M4 A). The results obtaimd oonftrmad th& "corrootness of the ass=ption# as far as compounds sdth a low So content s" comernede that there 1/2 L Card-.., AccEssioN as AP4012589 j, is a crystal-cheadcal ansUcy b*tus4n Sao an the one hand andL Zr and Us on the other. Orig. art. has$ 3 tabl"O' AWOC=ON: Llvivalky*y Dashavrq*y Vviv*rsyout (LOTOV State University) SUM=: 3lJan63 DATE AC4s OVar" mml 00 SUB CODEs HL, EL 110 MW WWI 003 002 Card 2/P, im ~L-Y.L~~yp V.-1.[--1-E-dokym-enko--p I- V.I.]; ZAIBTSKIY, I.I. Zalutalkyi, I.I.] Hexagonal Iaves phases in the alloys of magnesium with rare earth metals. Dop. AN URSR no. 6:766-769 164. (MIRA 17:9) 1. Llvovskiy gosudarstvennyy universitet. Predstavleno akademikom AN UkrSSR V.N.Svechnikovym [Sviochnykov, V.M.1- VA ACCCSSIOU URI AP4042823 5/0021/64/90010011092210924~ AUTHORt (Kriproke;ich, P. 1.)t ~Iyakeiz chi Pe I* Markiv, V. Taol Troy", A* 01 yang As Ael TITLE t Crystal structures of TLCuAl and TLNLAl ternary compounds -'SOURCE IAN Vkr SSRe * DopovLdL, no. 7, 1964, 922-924 TOPIC TAG92 tLtatfium nickel -aluminum systemg titanium copper slumL-'i., num compound, com0ound compositLang compound structure, 1&ttLca can- ABSTnACTt The copposition and crystal structure of n ternary TiCuwAlz compound 9, 'previous ly found in the TL-Cu-Al system, vere An- vastigated, Alloyq containing 33 at.% Tio 16#7-61.7 at.% Cuo and 5-50 atA Al.were 'melted from iodide titanium, 99,996% pure copper#. and aluminum In a helium atmosphere In an electric arc furnace and an nested at 800C for 350 hours, Among the obtained alloyag x-ray structural and m1crostrudtural analyses identified one as an almost homogoneous TiCuAl alloy and several inhomogoneous alloyse Zxcept for a small amount of a'TiCu2Al compound# the TiCuAl alloy consisted Jof a com,pound of an approximately TiDuAl composition and a haxsgonal~ AP4042825 ACCOSSION M structure of the HqZn2 type# v L t hthe I a t ti-ce con eta nts a - 5.026 + 0,004 Ag c - 8.064 + 0.004 A, c/s - 1.608p and titanium atoms in pZ7sitions with a coor4-ination number of'16, A similar tn.- vestigatLon of alloys of the Ti-ML-Al system revealed the existence of a dompound with a HgZ'n27type structure, a - 4.999 ;t 0.003 c W 6.049 � 0.005 w 1,610# and a composition ctose'to that',of .11 TiNiAl in equilibrium with a TiNizAl compound, No analoRous con--; pound.was found in the Ti-Co-Al system; ori &rto he 86 $1 ASSOCIATIM ual"rey tot,,. (LlvovAtatei Univer-1 sity) SUBMITTE61 283un63 ATO PRESS 1 3077 00 sue CODS t-RN SS 'NO RZF-SOVo 003 OT119R1 005' 12/2_ ZARECHNYUK, O.S.; ILU~Y*EVICH, P~J._[Kryp.fiakevych, P.I.] - Crystal,-structure Of'Ca2COjj-Y2(oI7, and Y2Fel7 OOMPOUnd8- Dop. AN URSR no. l2sl593-159; 164. (MIRA 1821) 1. Llvovskiy gosudaretvennyy univorsitet. Predstavleno akademikom AN UkrSSR V.N.Svechnikovym [Sviechnikov,V.M.]. GLADYSHF'VS'XlY, Ye.l.; OLEFISIV, G.I.; KRIPYAKFVICH, P.I. New representativos of the structural typ') 1,1~2Pb5l Kristallograffla 9 no.3s33&341 My-Je 164 . (MIRA 17:6) 1. Llvovskly gosudarstvennyy universitet imeni Iv. Franko. ACCESSION NRs AP4039400 A/W70/64/009/003/0410/0411 AUTHORSs Kripyakevich# Po L; Te"okinankople I.; Glady*ah*vWdyt Too Is TITLEt Compounds with & superlattioe such an Alpha manganese in systems of rare ..earth metals and magnesium .SODRCE: Kristallograflyst Y. 9t no. 3g 1964P 410-411 *.TOPIC TAGSs superlatticop alpha =nVw*se0 rare earthp magnesivat'x r%y study ABSTRACT t The authors, have prepared alloys of Th p Ho t Tu, Yb I and Lu o:ntaining 62.8 atwaio % of US in the charge (Leep corresponding to a composition of R by alloying Th ~(99-1YAt 0.5% other rare earths) go (97.4%j 20% other), Ta t94;-'I?,llt 1.5-1% other)# Yb (99.94j 0.005% other), and Lu 65-Z6, 3.0% other) with lk (990 in crucibles of XgO with a flux (LiC1 + K01) in a Tamman fiamace ka,toosphere of He or A). The alloys are silvery whitag and they oxidize in a.irp but much more slafty: It than alloys of Mg with rare earths of the Ce. group. X-ray studies show that Ta and .Lu alloys contain pure compounds of the Ti ?'924 typet but teat Th and Ho, alloys contain this type of compound In equilibrium with other oomjxnm4s# particularly 'TbVg3 and K*Mg:2. Experimental intensities for TU^A (V'sWa observation) are in t!!d - --------- ACMSION Us 04039400 good easement with computed valuese X-ray patterns for other compounds of the type, IR5%4 are almost indistinguishable from those, for 1%&5ft,4 relative to experimentall Aintensities. The lattice constant a for different compounds with the formula jR5)%4# in Xp ares 1i*263#'i1.246p 11.2330 11.2240 11.208g 11,185t and 11.251 for jTht Dy,, No, Sr. Tu, Wt end Y# mpeotivolre The value may be seen to decrease ~jwith increase in atasio number (excap~ for Y, which Is between Th snd.Py). OrIgo ;arte hass 2 tables. ASSOCIATION* L'Yovskly psudarstvanny*y uniyers~tet -in. 1. Frank* (Lvw State :Uaiversity) SMMW=t 01A*863 MLS 00 SUB COWS We OP NO RV IMs W6 OMMI 1z1 7 YEVDOKIW.NKOP V.I.;,KRIPYAKEVICH, P.I. Crystalline structure of a compound rich in magnesium in the system Pr--Mg. Kristallografiia 9 no-4:554-556 Jl-Ag 164. (KIRA 17%11) 1. L'vovakiy gosudaretvennyy univeraitet Imeni Ivana FrwAo. TESLYUK, H.Yu.; KRIPYAWIC-H., P.I.; FRANKEVICH, D.P. New lAveo phases containing manganese. Kristallografila 9 no-41 558-559 JI-Ag 164. (MIRA 17:11) 1, LIvovskiy gosudars annyy universitet lmeni Franko. Card 3/3 -.,f , /- 0 ~v GLADYSEVSKIY, Ye.I.L.KRIPYAKFV~C~l,,-Zj,!_YARM(jLYJK, Ya.P. A Crystalline structure of Mnt3i. Izv. AN SSSR. Neorg. mat. I no.7: 1086-1089 Ji 165. WIRA 18:9) 1. Livovskiy gosudarstvenn3rj universitet Imeni I.Franko, K. f(PP-1hily I IMP ".If ; ",,W , '! , ", 1. 1-yolall.1no rit'rootilro cS tho 11~, j (,;'r1J'! 14% 3: 4 14-4 16 %-Jo 165. 1. Institut inet-allpfiziki Ali 1Jkr:3.7jR I Llvov.-;r.~.y gos,..1i,rotvt3-.111yy ujilveraltat Iment iv. Frnnlko. C'r LA I)Ysqy"v, S y 1 y , i :~ . -I . - yaq I P YA ME V 1 C'. I P P - 1 - y , CerS13- i~r5SJ3, i , ~ ik 111113 aLruct-ares Of the compoun" La5Si3- 1., 3 flnfl Sm5SI3- Izv. AN S&SR- yoorg. mat. I nc,@5:702-4'05 "I J.'~ L (ElIP.A 16:10) 11i 165. 1. Lf.ov,kiy gosudaretvarMYY universitOt ireni FrankO- w-p KIRIPYAKU FWKEVICH, D.Pej VOROSHILOV, Yu.V. Compounds with structures of the Th6Hn23 tyPe in rare-earth metal alloys with manganese and iron. Porosh,met. 5 no.11:55- 61 N 165, (MIRA 18:12) 1. LIvovokiy gosudaretvennyy univeraitat imeni I.Franko. Submitted March 9. 1965- GLADYSHI.M."Kly, Ye.l.;,.KRIPYAKEVICH, P,T. . ~ . w.. Crystal Btructures of certain allicides of atrontiun. Zhur. otrukt. khim, 6 no,lsl63-164 Ja-F 165. (MIRA 18:12) 1. Llvovskiy goeudaretvennyy universitat imenl Iv. Franko. Submitted Juno 15. 1964,