SCIENTIFIC ABSTRACT ZHURAVLEV, M.V. - ZHURAVLEV, N.N.

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SCIENTIFIC ABSTRACT
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Ft Mal AMC& IQ40 (19,14~ C0 11111 4 , p9 tro 011110thlAhlb wIft witd all 14)c 1111 to'd6l III aloof A. , Thoo it 11, 011, 2 , Z A"I 16 MIld 11410, - 0 45 81~3 I M2 1 11 1111 ~si 0d tit hatman 'somms All ys~ kolt MIA 6XV0 PhItitt 60(tt 'Akh Vauriol~ * 0 AgA oad ftt)t t mr-z cl ated. Tbr dIbUtUr obutad W416-u-4 o 4110pa *f out= flrcuv~ 111 1, OfFCOVIVII fauumm or IMM It old (1111t d the-IIIIJ11N III armillro %4 4,4=ial of the P*Ittrfts, 1,10 evoilln' 11IR bt (110 fini M~MUK*JWWAEIQ . 41 lotikh hao bom atitchvd to rgzugu s7jI;vrxPAMJt4 0 lit ...... 1 GO J, chemical Abstracts ~1020 Vay-I 2 and Physical Gone 1. : p - 1. 1. Chemistry: would ol d 1 ~ or soul a oh 3 e 11 ~z -w4 or p: into Z90 R fi 1/Z F_ V~ USSF/Solid State Physics Structural Crystallography,,~R_3 Abst Journal- Referat Zhur Fiziks, No 32 1956 34654 G'. V, Author: SamsonovP zhuravievOIN. N Institution: Nor,-. Mitle: On Aluminum Boride AlB12 Original Periodicalt Piz, metallov I metallovedeni 5 3, 50~460 ye .19 5, 11P No Abstract: A:LB -therm'al ieduction oVboric an- .12 crystals were obtained by aluminum hydride in crucibles. The contents.o-f boron in the beads obtained. during thti melt-- to 82.5 - 82.8%. AlmooVall the.AIB a V Ing amounted .12 crystal are.double'growths. X-ray structural Investigation has shown that'AlB bslongij to the tetxagonal-syngony Ile " . i .79 and bas the following perlods: a 10.1 � 0. 4: c 1 .3 t 4 k and CIA = '1. 41 pJ1 p 2 0.02., number of atoms per elementary cell approxixatel~:200.~ The electric r6sistiv_ city of the pressed powder of AIB12 is related to the, densitt as followir: In: 7-588y 15-03., where P is the resistivity (obms/cm), ;,and Tthe density Of t& pressed briquette. Th6 electric resistivity of the spIicimiens -of JUS12,in ccimpact state, prepared by hot pressing, amounts to approximately .10~ obm[3/CM,.'the thermal coefficient of electric resistivity is 0.4%/deg. The micro-hardness of AlBj2 is .close to the micro-hardness of B. Al, 9 .4 1//,. b V 4,. USSR/~hysi'cs - SVerconductors Card 1/1, Pub 146-12/25 Author Zhuravlev,'N. N-) and Zhdanov,, 0. S. 'Title The structure of superconductors. VIH: Roellt&nof~r~phid and W1 ~d116 - graphic investigation of the system bismuth __2 ry -Periodical Zhur eksp. i teor. fiz..28 228 55 36, Februa .1-9 Abstract, The atithors investigate.roentgenograph Iically aiA.mel;allographicei,ll~ the es-~abli.-;4 the axist6nce Op three c system Bi-Rh, in which they BiRh ons and Bi4Rh in t1wee vbbd,ificat=sp-j~r~L ey B12Rh in two ma(lificati obtain crystals and.determine the'elementary nu6leus a*nd spatialigroup c.~ a1pha-Bi4Rh and the elementary .nuclei of alpha and beta BiOh~'' They thank Prof. N. Ye. Alekseyevskiy an-_4 V. P. Gl6goleva for advice.-*and: I. I. Jifanov, N - P. Ivanova, Ye. I. Michurina, and It. S. Semeyko f -m~ the preparation of the alloys, roentgenograms, and mic~,osections. SOveD~ref- erences. Institution: Moscow Engineering Physics Institute Submitted February 24, 1954 LA Ro Category :',.USSRlsc~!i~i State systems E-4 Abs Jour Ref Zhux- Fizika.''No 2; 1957 N,-, 3785 -Authar Zhuravl-v U.N. Zhdsrcv, GoS. Titli; Met&12zgra c arA, X-ray Diffractinu Investigation of Alloys of the: Germanium-ltb:dium System Orig Pub t Watealogratiya, 1956, 1~, no 2 205-208 'Abstract The existence of four compounds ,miabserved in the Ge -11h sy3tem-,,Rh G6 4 RhGe,q Rh5CYP , and Rh Ge. it Is assumed that MV~4 a--ad'Rh5Ge3 are . ;Md 2 by pexitect c reacticna. The ccmV.-unds, RhGe and %G,a, carrespond to the. maxima ~-.n the meltability diagram. :The contours of the., meltability dia- grams are irAicated. The density of compounds of the Ge-Rh system are determlued amd their microhaxdness is measured. . It is fourA that the Rh Ge4 cemp:vndcrystallizes i-a a tetragonal syngony -srith periods: a 5-TZ 07. c 1.0 O~3 A. No solubIll-ty of Rh in Ge or of G,"In Rh was observed. Card 1/1 Lt IJ I .1l liE, 1 t uf] Mi H R L---iA '-6 1 li~ N lil I Al 1, ;l I L 4 ,,,5 i NOV, All _-lZM ~i ii I -Uij lffl~ L 1. 1 WHOM '11"t, 17, 111 Ilull 11 ill I Illif mill qdl , MINI, :~ I I , , I ~ I; li~. I I! i " ~mv USSR Solid State Physics Structure of- Uloys and Other E-5 Systems Abe Jour Ref Zhur Fizika, No. 6, 1957 No. 11689 Author Samsonov,, G.V., Amnuel I. G#' inst I Title i Concerning the Problem of the Physical-Chemioeil Fropefties of Alloys of Boron With Carbon. Orig Pub Piz. Metallov i Metalloved6niye, 1956, 3, No.2, 3-391- 313 Abstract t X-ray-diffraoti6n andmicrosoopie investigations we're made along with a study of the electric resistivity and the densi-, 'ty, of alloys of boron with carbon over a range'~O'f carbon contents from 5 to 72.5% by weight. It is establisheA..that at carbon contents of 6rp and above thate is formed in the boron alloys a defect structure B 13C2, oharacterized.by a presence of vacancies on the a axis. At 14 -- 16% carbon, the vacancies are filled by carbon atoms, forming a line C B C which then changes into the line 0 C,- Card:: 1/2 . . . . . . . . . . . USSR Physics of Low Temperatures* D-5 'Abe Jour :.Ref Zhur -.Fizika, No 4, 1957, go 9054 Author 7-huraylpy- N-N- Zhdanov, G.S. Inst Physics Faculty, Moscow State University Title X-Ray Diffraction Investigation of Compounds in the Bi- Rh and Bi-Pd Systems in Connection With a Study of Bu- perconductivity. Orig. Pub Izv. 0 SSSR) ser. fiz., 1956, 2o, No 6, 7W-713 Abstract An investigation of the Bi-Rh,system,has Phovn that this system contains three intermetallic compounds:ok-F& (I), Bi2Rh (II), and Bi4gh (III).: For isolated~~'cr3,stiils of these compounds, data are determined on their.crystalline structure, and also certain physical prop6rtics, including the temperature T. of transition to the superconducting . w 2.060 K. It is establishc& that two state. For I, Te i t go into out of three modifications of II (6~ and (3 do no Card 1/2 USSR Physics of Law Temperatures. 5. Abe Jour Ref 2hur -.Fizika, No .4, 1957, No 9054 Author Zhuravlev, N.N.) Zhdanov, GbS. Inst Physics Faculty, Moscow State University: Title X-Ray Diffraction Investigation of Compounds tu the Bi- Rh and Bi-Pd Systems in Connectton With a;Stu~y of Su- perconductivity. Orig Pub Izv- AN SSSR, ser. fiz., 1956, 20, No 6, 708-73-31 b A stract An investigation of the Bi-Rh system has shown that this system contains three intermetallic c ov-Si-Rh (1)) Bi2Rh (II), and Bi4Rh (111). 1 For iso=ry*t~u of thesecompounds) data are determined on their.crystalline structure, and also certain physical properties,-including the temperature T. of transition to the superconducting state. For 1, Te a 2.060 K. It is established that two out of three modifications of II (6~ and(3 do not go into Card 1/2 Rz. U.. ILI . . ..... LEW 1 13321 a, Mild MOU Ej wia i~ j-1 L!.j u 41 iL A -FIT, t. HIM I :41 If R. 7 oil it -- . j_ . I'd It j7,14 MITI, it 2i tilt!$I ptr,jj;.~, lij$ IIII it) S-i fit 'iti 1!T, J, - ,-i:; 0 .71 J4, on"', 11~-,,-!" iL: it i 70-2-16/24 AUTHOR: Zlidanov, G.S.,.Zhuravlev, N.N. , Stepanova, A.A. and Umanskiy, M.M. TITLB: The crystal chemistry of metal hexabo:.,Jdes. (Kristal.lo- khimiya geksaboridov me .tallov) PE.,ilODIGAL: ITxistallomfiyatt (Crystallo~ra:qhy), 1957 Vol.2, No.2, pp. .289-290 (U.S.!':' .-R.) ABSTIUCT.- The MeB6 structure consists of aL~three-.dimensional frame- work of B atoms with Me atoms in the Interstices and is formally like the GsCl structure vrith B, -ind Me unitso In group II, Be, Mg, Ca, Sr and Ba form helEaborides as do'Y, Ia2 Ce, Pr, Nd, Gd, Er, Yb in-group Ill.~ The,.'formation by~the remaining lanthanides and by So of hexabovides can also be predicted. In group IV, SiB and ThB aro lmovvn. Whea the unit cell sizes are plotted Rgainst a~oruic radii the compounds fall into three series correspondlnES,to th3 three groupi'. Coefficients of thermal expansion of 'Ca ind GiB, shave been measured by X-ray diffraction (5.9 and 15.5 x 10-07 respectively and are added to the maasurements already nade (A.A.Stepanova Card and M.1,1. Umanskiy, Trudy soveshchaniya pa khimii bom i ego soedineniy. Fiz.-Rhim. in-g. im, 116~ova, 1955) for Oes la and Ba (7-3, 6.4 and.6.8 x lCr respectively). The coefficient I LIMINIMMUll IfIll 11,1111111111 L1111,411111 111111,11 ill 1"Ill Uslitill ___jLMOx1_ __ _~Tmauz_ 56-&- TITLEj Structure of Juporconduotors. X. 'hermal, Uicroscopioo a,id A__Hay Investigation of the Bismufli-PallAdiwa SyLitem. (Otruktura everkh- provndnikov. X# Tormicheskoye, mikrookopioheekoye i rent e~ nograft- cheakcbe issledovardya eistemy viemut-palladiy~, Russian5 PERIODICALz Zhurnal Eksperim. 3. Teoret. Fiziki, 1957, Vol 32, Nr 6, pp 1305 - 1312,(U.S.S.R.). ABSTRACTs For a bismuth-palladium alloy containing up to 45 veight palladium the exact:phase diagram.-A.-asiset up. Furtherno re,,4the density of the alloy a- f its avert- -e hardness H, and th;e transition temperature T was measured at w1iialt the alloy becomes sa:ira- conductive. correepondiz.,S daLa a-^*: alloy, Crin h/CM3 H in kg/oO in PK Tk 0( - Bi Pd llf~65 170 PT 2 - B1 Pd 1107 135 4,25 2 Bipd 1206 no M BiPd (43,5 weight d- 1Dq I 111 7 Arin 1 17 L) z~ V IV AINMR: ZHURAVLETiN.H., M=MoL.. T TITLEs XI. Investigation of Platinims Ruthenium, Nmi= and Iridium AIloyu -if.Bissmith. (Struktlira sverkhpmvodAkcY. XI. larledo-ardp splavoy viamta a platinoy', rutenly=j LJMJYM:L iridlyemp Russian) MIMICALs Zhu=2 4mperJm. I Teoret. Fi.ziki, 1957, Vol 32, Wr 6, PP'13113-i318 ABSTMOTt For the Bi - Pt alloy the,thase diagram w7as set up. -There are two :~ Modif cat' alloyss a) M2~t - which exists with a ani: i icape, transformation temperature 1- -3900 0 1~) B Iptr - Whicb, M, alto at - 7600 0 ana form & eute 'ctio mixture with plaOinun. Dir~eot - melting experiments between bismuth on the cne'hand and Authenium, osmium =a iridium on the btber were unsuccessful. (With Table# 7 IllustrationmV and 12 Slavio Referenoes). ASSOC=a1s. Moo cor State University PRESEWM Bli SMWTM)s 4.1-1957 AVAILOM Library of Congress CaLrd i/i SOV/70-3-1-13/26 AUTHORS: and Stepanova, A-A~ 'TITIE: X-ray Determination of.the Structure cif'ScB a .2 (R~ nt7; genograficheskoye opredeleniye struktur :ScB y 2) PMIODICAL-. Kristallografiya, 1958, Vol 3,; Ur 1,~ ~p 83 -,85 (USSR) ABSTRACT: There are no data in literature on:ith4~ txiatence:of; compounds of scandium, with boron. Thezompound~ whidh was investigated by the present author;q was obtaine&at'the Institut metallokeramiki i spetsiallnykh splavov~~AN:SSSR (Institute for Metallo-ceramics and Special Allo~ ~ys of the Ac.Sc.USSR) by G.V. Samsonov. The weight of:the specimen was about 15 mg and was in the form of a powder. Powder photographs with and without rotation were obtained with the specimen. A large number of lines were:found. It was shown that SeB belongs to,the hexagonal syngony 2 s and is isostructural with AlB2# 'The f6lloviing lattice constants were.obtained: a 3.140 + 0.002 kX; c 3,510 + 0.002, kX; -7 c/a, 1.118; ax ftm3. z 3.6? 1;' space group Cardl/2 D~h C6/mmm SOMO-3-1-19126~ AUTHORS: Stepanoval.A.A. and-ZhuggyLev, N.N., TITLE: X-ray Study of the Borides, YbB B and'GdB UB41 no 4 4 61 (Rentgenograficheskoye issledovani~e boridov YbB61 UB 41 HoB4 and GdB4) PERIODICAL: Kristallografiya, 1958,.Vol 3, Nrlj pp 94 95~(USSR) ABSTRACT: Specimens of the substances were prepared at the~,In~stitut metallokeramiki i Bpetsiai'nvkh splavov AN'USSR (Institute for Metallo-ceramics and Special Allors'of~the Ac.sc. Ukrainian SSR) by G.V.'Samsonov. They we're in the form ' of powders. The thermal expansion~of YbBr ic) was (cub determined and the coefficient ofithen~Q expaFion 1 or the substance was found to be 5.85"x 10- deg- ::Figure 1 shows the dependence of the period. a of this s4bstance ' on temperature. The following table gives the data obtained for the other three substances, (tetrag6nal): Cardl/2 I ItIFTHir. I klil It ir.' R It H !~,JOH3-4,9 I I I IN! 1111 L [it I H 11111 it I I 1113111, 111 It If I I HII fIR11 I I I lit 111, 11111 W111111 I, I I III III I I It 11113111F I MY If I I ~ I I,1J I If III IME I W111:1104-119: 11111111111 V I rNIIIA3,11 I MIR H qI11,111 I A III It SOV/70-3-1-19/26 X-ray Study of the Borides YbB UB HoB4 and~GdB4 6-) 47 Compound a in kX c in: kX UB 4 6.983 0.005 3.930 + 00003~ HoB 7-050 0.005 0-003i 4 GdB 7-079 + 0.005 4-0301+ 0.004' Professor G.S$ -Zhdanov,lDocent JH.M.'!:'Uman'skiy and' Doctor of Technical Sciences G.V. Samsonov are thanked for their assistance. There are 1 figurell 1 table and 3 Soviet references. ASSOCIATION: Moskovskiy gosudarstvennyy universitdt im6 M.V. Lomonosova (Moscow State University imeni. M. V. Lomonosov) SUBMITTED: April 301 1957 Card 2/2 ........ ... ~1 it's I ItI114 MIMI :IC-3-3-26/36: AUTHORS: Zhdano,v, G.S. , Zhuravlev, R.N. , Kuz Im xtq; R.N. and Soklakov, A.I. TITIZ: The Establishment by X-r .ay Crystallography of a New Compound Bi 3Rh in the System Bi-Rh (Rentgenograf ic.h6skoye.ustamov- leniye novogo soyedineniya Bi Rh v sisteme Bi-Rh) 3 PERIODICAL: Kristallografiya, 1958, Vol 3, "r 3, Pp 3?3 -:374 (USSR)@' ~~:ABSTRACT: M4~h has been supposed to occut~in t,hree pol*ior~hie modifications m and Goniometrie,and X-ray~obser- vations have been made on W-L.Rh Its habit is identical b='4.2 with that of Bi NJ and its cell dimensions -A-9. 1 3 o=1104 A are close to those of Bi Ni CaMB-8,75; b=4.115, ~ p - 1.3 16 1 0=11-477). Both have the space group, Pnma:- Djh .' d ob s. -Fhe~ formula 10.7 0.2 gn/em3. gives Z nearly e~;qual to 3 if Bi4Rh is used. It seems clear that t~e for'mula should be Bi,Rh giving z=4 and powder photographs also confirm this 3 Cardl/2 resemblance to.Bi NJ "Mil -11111111,1111di 78:~3-3-36/4 7 AUTHORS:' ~ Zhdimn vp 0. 8 Zhuravlevt,N. N. Ku0min N], 0 TITLE: An Investigati.on,:of the ::System Bi-Rh, (Issiedovaniy6 ~rjistemy Bi-Rh): PERIODICALS Zhurnal Neorganicheekoy KhimiI,91958),Vol.%~Nr 3v 1450454 PP- (USSRY ABSTRACTS By k4ay Analysis some compounds of,',bismuth and rhq iumv especially Bi Rh~and Bi Rh were inveatiga'toda, The cilystiLls A ii d C(,-]3i of P-Bi Rh a were investigated* The -Bi Rh- 4 2 4 -crystals are rhombic and have~the~folloving,lattii6i eohstantsi a -11.4 � 0,2 1, b - 9,0 + 0,2 X,L 6 w 41 12:+ 091 i'The"den- - sity of the crystals is 1M + m3. ~Ov2 g/q , The compoundoc,-Bi Rh ofretallizes in the~monplinioiqyatem 2 with periods a 0 6t7 b - 698 12,~:G U1,699 X0 i The system CoSb.was investigated.at,thct same time and oh the basis of X-ray analyses it was found that oc-Bi. B11, bnd CoSb 2 ' i d i l a 6 i al~,.i are somorphQus compoun s. The cxiys b assi-. c 6-Bi 2 caA Card 1/2 fied with the structural type cf markaiiite. DUring the melt- 78-3 -3-36/47 An Investigation of the System Bl-Rh ing of antimony with oobaltv rhodiunii And iridiam cr~6tals of CoSb2, RhSb2 aW IrSb2 were:deterzlh~4* These' crystais heave a mon;ali. structure., The unit cells of the compound ~CoSbV RhSb2 'and IrSb2 were calculated IV ~tli.' roazitgengonometrio Die thod . 3 gl m 0z' CoSb2 Ia 6,5 b -6,5 R9 c-6,5 0-1184-1, -S-8,1 m4 3- RhSb ia -,6,64 b -6,5 1, o-6 7 1 9, 1 2' -11 17�1 t V.- .0 9/~m Z=4 1; ~ 3 IrSb2-.t a, - 6,16 R, b -60 R, c-6,7 it A-116+1'e-lo'bpgl~m 9Z-4 -3 B12Rh a t.7- R*O' b ~ 0~6: 91'a 2, CW6,9 1 D:P --l i 7.t2,e-1 2 9/~m Z-4 A new group of isomorphoun oompound~6 CoSb oc-RhSbv;jrSb 2t 2 and oc,-Bi Rh was produabdo There are 5 figures, 1 tabled nd, a 2 12 referencest 11 of 'which are Soviet'o ASSOCIATION: Moskovskiy gosudarstvenny universitei in.: U. V. Lomoh'osdva (Moscow State-Universty imeni. M. V.~iLozionosov) SUBMITTEDs June 25 1957 Card 2/2 .......... AUTHOR: SOM /0-3~ 4-19/26 TITLE: X-ray Grystallographic Investigation of the y-phase'of the System Bismuth-Palladilim (Rentgenograficheakoye.issledov- aniye y-fazy sistemy vismut-palladiy) nRIODICAL: Kristallografiya, 1958, 'Vol 3, "Ar 4f; PP503-504 (USSR) 'ABSTRACT: The compound. Pd 5Bi3 has been reported, (Naturwids. l953, Vol 9, p 267) to occur in high and low~temperature 'modi- fications the former being of the-MAs'type with a = 4-50 + 0 05 KK and c/a = 1.29 It is now:shown that fron7406-680 00,:the Y-phase has a regioii,~of.-con- siderable solubility and is therefore ::not, of d6terminate composition. Below 400 OC, the euteotic decays~into two d phases BiPd and BiPd 3 Monocrys,,tals. containing 43'5 wt% Fd .were obtained;and showed.that the,' I y-Phase is hexagonal with -,a - 7.75 + 0.05 XX and. 0,= 5.05 + 0.05;; KX~ Z = 16 + I '5 atois of Bi and.Pd:.,,' This. is- a superstructure with a Fseudo-cell cotresponding:,to the one mentioned above. On annegling this specimen of the,y-phase for.8 hours at 250 C, it decayed to BiPd and the:'low-tempe~rature form Card 1/2 jj Hit . ... ....... sov/~0-3-4-19/26 ,X-ray Crystallographic Investigation of the y-phaBe of the System Bismuth-Palladium of BiPd3 This shows that the earlier authors had actually regarded the y-phase as their high temperature one, of composition Pd5Bi3 and had mistaken the diagram,of BiPd + BiPd for one of a low-symmetry modification of Pd Bi 5 3 Acknowledgments to Professor G.S. Zhdanov., There are 3 references, 2 of which are Soviet an&~: 1 German. ASSOCIATION: Moskovskiy gosudarstvennyy'uni'versitet im. M-V. Lomonobova (Moscow State University imeni M.S. J-omonosov) SUBMITTED: December 18, 1956 Card 2/2 ---- ---- - ------ .24(6) AUTHORSs 4U= V, is r *NO P S vler N Pak Gvan 0., SOT/55-58-~3 1~)3/34 . I + TITLEs Investigation of the Anti-mony-Elboditim jilloyls (13sledoviniyli splavo* surlmy a rodiyem). PERIODICALt Ves.tnik,,Mosk*:v-8kogo uiniverai to ta,Saiiya. imtemat Id astronomili., fftiki,~ kldmli P,958tut 'PP' 79 82 (VSSR~ ABSTRACTs I t --vms stated that.t6re'result three co tbinationi jwhe . melting together antimony and.rho'dinmi,Rh Sbo Rh;qb 2t~ Rh Sb Rh Sb 2 crystallizes in the:;ionoolinic syngoty. with the period& a 6.6-to.'2 A" b 6, ii.to,. 2 A:1 aix O:.7�. 0.2 and S 117ot V.1be elementary 1~ell 'eo ntaills 8: Antimony-. . and 4 rhodium atoms. The space. gro,tp Jfj: a 2h (P21/o -use -i The-Irawthorw -the-:4ensities of 'Rh and, Sb accord ng to M.P4 Slayinakly [Ref :11/ and orys till J,Dg~lraphic dated of N.Ye. Alekseyevskiy, Card 1/2 M.111101 m SOV/70-3-5-21/24! AUTHORS: Zhuravlev,:N.N..,and Katsellson, AeA4 TITIE: An X-ray Diffrac i n (Powder) Camer: a for St8dying Crystgls in theTImperature Interval -- ;175 1 to; +300 C (RentgenoVBkaya,kamera dly'a isq.lAdovaniya o; kristallov v intervale:temperatur 175 + 300 4 PERIODICAL: Kristallograft, 1 3t Nt 0~ (USSR) ya, 1958, Vo r~, 5, pp; 632- ABSTRACT: An X- Iray powder cameIra: ofsimplif i6d, 'but: c.onventionil design is described.. A, detachabl'e,i aide plate can carry either a tube for blowing cold air.~evaporated from liquid air in a dewar flask by a submerged heater or a heating coil.embedded in a ceramic tube. In each case,~~he~ 0 1 temperature is measured to + 10 C~by a thermocouple mounted as close to the spe7eimen as, poss ible and;, a radiation screen protects the filmo. There is no!provision for controlling the.atmosphere surioundihg the splecimen, nor apparently, for adjusting thep*psition of the specimen. As a check,, the 8emperSture,faetos f or metallic nickel was measured at 215 20 avd;-195 -C, ~215, -1?5P, B(20, -175) and B.(215,:20) had 4the Card 1/2 U11 AUTHOR: Zhuravlev ff. X*, 507/78-3-9-32'/38' TITLE: On the Production of Metallic Cesiumirrom Cesium Fluoride,.' (0 poluchenii metallicheskogo t se ziya; ~~i zftorida t a 0-'~ 21 iY a' PERIODICAL: Zhurnal neorganicheskoy khimii, 1956; 10' 3,:N 9t P-P:~2216-22141 r (USSR) ABSTRACT; . A method of-producing metallio oesium'ib reducing a,cosium fluorine compound with ta~tallic magn4'~iurt Aras deecrib6d. '?he reduction of, cesium fluoride takes pl~iLee a6cording t' the following pattern.-. 2 CsF + Xg KgF~ :+2 Cs The reduct ,ion is carried out in a sp0i,AaL apparatus ~o~f quartz in a high vaouum, at a temperature otj58O-60OoC'* Alt6mper~ture tha 6000C i to be avoided~ m nesium ii ~ rities, of more n 8 as P-9 FU appearin cesium. The cesium produced ot~n b ei 9.tore'd,in. the vacuum for some'time and also under 'ayer of kero sane for several'hours without any npticeable oxid6tion, .Cesium can be purified by double distillation in the vacuum at 250-3009C- The yield of.metallic cesium a~nountsJo 70-80% of the qua'ntilly Card 1/2 theoretically possible. AUTHORs Zhurav.L o-r/'76-32-6-35/46 S TITLEs The Selective Solubility.in Bigmut~-41atinum Alloyi~ (Izbiratellnoye rastvbreniye v spl6vakh,vismuta s,!~latinoy) PERIODICALt Zhurnal fizicheskoy khimiii 195d,:701,- 321 Mr 6, pp- 1413-1413 (USSR) ABSTRACT: Diluted nitric acid is used for 66.'aopariLtion of, bry,itals, of the, intermetallic compound Bi~P,t 0'r the''.heterogenous alloy containing Bi, besides it vj6s found tbatin the case of higher concentrations bismuth~diesolvies from th Iecqmpoundi a concentration of platinum having; bean~',already. no~ticed by 'ler'(Ref 1). This way,or by imea ''' rais i4 the Roess na of temperature a highly:disperse Pli inummiyxbe obtained. In the present paper P-Bi Ft crystals~~,Which crystallize in hexagonal,syngony,in.the form of.thin platelets were isolated and from them afterwards~..~the diaperse platinum was obtained. Radiographic investigations or the'I'att~r showed that the crystals have diaensionsi, of ~15-901 I and that obtained they.are analogous to the skeleton nickel catalys, Card 1/2 from R. A The conversion of the platinum atoms. into: the 2 13- The Selective vsoO Solubility in Bismuth-P latinum Alloys 6-32-6-35/4.b oubical,lattide of plati on them 6dciwioii of the' selective dissolution of Bi from BL?t wis~also oba~rved by L., M.-Kereli (Refs 40),An where iniboOiea ed Th~ cases the,formation of intermediate:phasds oacurr 6 mentioned way a skeleton platinum 6atalysit,can be obtained; on the other hand it is pointed out!"thitt "in the separation of monoorystals of intermetallio compounde,.of bi-ph6se illoys the possibility of eelsotive solubility must be taken into account. Finally. the author thanks~6.3* 2~h4anov. There are 5 referencesi 4 of:which are Boviet. ASSOCIATIONjI at iml. U.V. Lom'o'nosdva Moskovskiy gonudarstvennyy universit . a (Moscow St te University imeni M. V.- ~Loia ' osov) Oil SUBMITTOD: February 27f 1957 1. Bismuth-platinuin orystals-~-AnalyBiO 2. ~Ismuth-w-Cheiical properties, 3. Platinum-~-Separation Platinum ~crystdls~ --X-ray.analysis 5. Single,crystals-~-Separation 'Card 2/2 igg E111,411mull?, Immilm MEN] IR11111110 RIMINI 1-6-34-74-5 /6o AUTHORS: ZhurayleTy N.~ N. Mill' S. gazin, T. A. Zhd;!nov ~ ~ TITLE: _i`heS ~ruc Ureof SupierconductorB.',112 (Siruktura. s;verkhprqvo.dm-- nikov. XII) The Investigation~of,Bist,.uth,-:Rubidium Alloys (IBeledovaniye splavoy vismuta s.iubidiyem) PERIODICAL: Zhurnal eksperimentailnoy i teoret'io))eqkoy,fizikii 1958, Vol. 34, Hr 4, PP.-820 -826 (uss ABSTRACT: According to thermalp microscopical, and!rafliogr4~llic:data the test diagram (probnaya diagra",a) of - the fusibility ofthe system Bi-Rb is constructed '. She investigationlof this' system is connected with the solixtion oif~variousim!eitho'dioal problems. The main difficulties miiinlylaie connected with the high chemical activity of met4llie~rubidium a~d also with the great difference of the physi6il-cliamical proitertiec of, bismuth and rubidium6 The whole irivettigation was;;per~ormed at small quantities (-i 3g) of rubidium jirhieh required;: the working out of micromethods for the production 'of:thelialloys Card 1/4 and their physical-chemical analysis. First the production I R-Mi rill VAR IVP51W~ Z, I ~,N'q v 11-f RW~l U3111i'01 K H.-F, Nit IM Ill I Ili 11 WI 1,11.1111111 IVII41141 1,111 HIM 1111111 iffil I 111H I 11111,111111111111 M1111111 IIIIJ I I I I INIF The Structure of Superconductors. XII. The.,Investi- :56-34 4 5/60 gation of Bismuth-Rubidium Alloys f r:this are of the alloys is discussed, the apparat.us used 6~. discussed by meahs of,figureB. The melting, was, petf ortied, in, small resistance furnaces. Then,t~e authors report,on'.the thera- mal analysis of the alloys. The cUrves"of heatin#~and'cooling were taken by an automatic electron potei~tiometer`ufitlo a tem- perature of 50 - 1000C.The results of the thermallanalysis obtained are illustrated in a diagran. and subsequently dis- sitio~ Rb cussed. At the bismuth-rich allopi (to 'the compol Bi 2 also a,metallographic'al investigati6i. Traa performed. According to this the number of the crysta)3,'iof the coinpound';Bi b in- ~24 creases with increasing rubidium dontent.in the alloy",. The alloy with 14,8 per 6ent by weight.ri;,bidium accoi~ding to its~ composition resembles the compound Bi Rb:(17 per~~ent,by weight;)it contains a small quantity of euta.*ic and i's al:moe.tl:, homogeneous. In the system Bi-Rb' the various phas6s differ Card 2/4 by their color. Thenithe authors Feport, onthe d1eierrlination of the structure of the supercondkIctiv,_* compound, Bi 2~b. By .. .. . .. . . . . .. . The Structure of Superconductors. XII. The Investi- :56-34-4-5/0 gation of Bismuth-Rubidium Alloys exact determination of the lattice pez,ioil of Bi Rb th~fi value 2 a_- 9,590 + 0,002 U wad obtained. The dLstanoeu betWeen'the lattice pl7aneo, computed from thesed :Mota ajSr ae nell:W:ithithe measured results. The Rb atoms in the at t-ueture~ of the Bi Rb d are distributed according to the diamond law. Som e crincl%*Lsions are: In the system bismuth-rubidium 4 compounds were!staied-., Bi2nb, BiRb 3t -and two compounds of the probable .composition Bi Rb and BiRb The maxima.in the fusibility.diagra'm correspond 2 3 2' in:the to the compounds Bi Rb and BiRb These cotpounds forq1 2 3' fusion of the componento with high h6at eniission. The; tyro other compounds form according to the peritectic reaction'.;'The-super- conductive compound Bi 2Rb crystallizes in isometric,nyngony with a . 9,59o + 0,002 I-J and has a 6tructure of the'ty ~e of j p Cu 2 ME. The incx~~ase of th,e minimum i:rliteratomic distances in the Bi Rb leads to an incr,_~ase of the teMperature of the 2 Card 3/4 transition into the supercondactive stal;e. Finally t'ic author 4~0 The Structure of Superconductors.~XII. The Investi- j,-ation of Bisluth-Rubidium Alloys Y'for 1h vier thanks Profezso.. it. Ye. Alekseyevski 'is valuablt a& in the performaiiae of this work, and, R. it. Kil-, I min f or his assistance in the performance of the txporinants.- Th6re acre 6 figures and, lo refere'necs,- 9 of which are Soviet. ASSOCIATION: Moskovskiy gosudvxstvannyy univeroitet! (Mos'e~ow State unliversity) SUBMITTED: Novezber 15, 1957 1. Bismuth alloys--Analysis 2. SuperconductDra--Struatural analysis Card 4/4 AUTHOR: Zhuravlev 11 Ir 56-34-4-6/6o TITLE: The Structure of Superconductors. XIIII (Sbvuktura svO,rkhp~rovod-~ nikov. XIII) Investigation of Bismuth-Cesi'' Allo,7 ~~(Issledo_ U.In B vaniye splavov vismuta, a tseziyem) PERIODICAL: Zhurnal ekspe.rimentallndy i.teoretichealoy-, fiziki, Aj5a, Vol. 34, Nr 4, PP. 827 829 (USSR)~ ABSTRACT: 'According to N. Ye. Alekseyevskiy (Ae'reren~oo~ various alloys of bismuth with cesium go:over into the superconductive state Card 1/3 at T - 4,750K. A birmuth-rich compound*of ~bisrluth with Cesium seems to be responsible for.the superconduotion of tbese'salloys. The main~problem of this investigation of the,ay'stei :'bismuth- -cesium was the explanation of the cbnposi~tion and of the atom- -crystal structure of this auperconductive~oompound4 ;Bec, ause of the high chemical activity of metallic ~cesium theiinvestiga- tions came across certain difficulties. rheauthor applied the micromethods worked out in one of his preiiaus work~!(Refer- ence 2). First it is shortly reported on the production Of the samples. The curves:of heating and cooling are taken1by an automatic electron potentiometer unto a telmperaturelo'f 50-1000c.~ -4 MURIJAIIII IHIL'All If fill HUM HII HII If IIIH I Ili III Iliff I 1:11illn If 1:11F 1111111011111) 11 HIVIIIIIHIll 56- The Structure of Superconductoro.XIII. Investigatid,h* -334-4-6/6o of:Biumuth-Ceaium Alloys in f In if a: The results, of the thermal analysis are plotted OT 6 fusibility dia,-ram of the system binawtb-cesium. The ~Eielting temperature of bismuth d eareases ivithl.th! increase of, thal'ce- sium content and reaches a minimum at ov 2500~. Thai witIectic M 16. 11 point in at OV 1-3 per cent by weight cesiuLi., Fro tli' eAectic y,increases and.reaches a point onviard the curve of fusibilit maximum at N 63oftland 240 per cent:by weight cesiumi~ which corresponds to the.compound Bi Ca. InL 'of ine eaI6ing~cesium 2 -ease r content the curve of the fusibility~decrealsea. Further deAails of the fusibility diatIrdn are given and shortly disciissed. Then., t the author reports on the determina ion of the strudtiure~of the superconductiVe compound Bi Cs. The poYder rbntgpnog;ams were taken for an alloy:with V ~3 weight par cent Usiby a CuK -radiation. The investigation peiforluled permits,acrystal- a -chemical analysis of.the isomorphic.group of the su~p'erco'nduc- tive compounds Bi K, Bi Rb, and Bi Cs. Sor:e.conclusions:'In 2 21 2 the system bisinuth-cesium 3 compounds~ crystallize: Bi Cs, BiCs Card 2/3 and a compound of the probable compos.ition, BiCa Thecobpoun .ds: 2- The Structure of Superconductors.XIII. Investigation- 561-34-4-6160' of Bismuth-Cesium Alloys Bi Ca and BiCs correspond to the' maxipa JA;the.fusibility dia- 2 3 gram and the compound mentioned third forms,according.to the peritectic reaction. The superconductive com1pound Bi Co cry- 2 an stallizes in isometric syngony with a 9P726 + 0,005 kX d has a structure of the type of Cu Mg. :Tho crystal-chenical ana- 2 lysis shows the following: In the isomorphic gro-up Bi 2K, B:12Rb and Bi Cs increases T in cas e of an increiaseiof the p6 ri.oId'of 2 k the elementary cell. Finally the author thanks the Profeador G.S. Zh ,danov and N. Ye. Alekse.TevBk iy for YdLlilable advicer;; and hints in the performance of the worko.BesideB.the author thanks V. A. Smirnov for his assistance in performing the expprim.ents. There are 1 figure and 6 references, 5~of which are Soviet. ASSOCIATION: w State Uhive Moskovskiy goaudarstyenn y universitet, (Masco" raity) SUBMITTED: November 15, 1957 Card 3/3 1. Bismuth alloys--Analysis, 2. Superconductors-;-Structural analysis I R tl'-ill I t~'71'1 I '.1fIPq11I It W~1'711311;14 .11T ~ 14 It I I V 1,11111, 1111i I 111:11111111 YIIIM I I I 1111111M1 I I] IIJIIIIIIIIIIJI [I I I'M 111111LIl I I !III F1 VqXe70-4-4-10134 .'AUTHORS: Zhuravlev, N.N. and Smirnovt . .. ................ ..... .... TITLE: X-ray Determination of'the Structure of CS7 Bi PERIODICAL: Kristall6grafiya, 1959, Vol 49~Nr 4. pp 534-5'37 (USSR) 0 ABSTRACT: CsBi - ich Is a super-conductor itt 4~!75 K, 1;31 Im6wn 2P to have a Cu 2 Mg-type structure with a'=. 9.746 4-~00005-A and minimum interatomic distancei;of Bi-Bi~= 3~. 44 fli-Cs -Cs,= 4.22 N647' data on Cs Bi is-now 4.04, Cs 3. presented. Cs-Bi was prepared under vacuum or u4der 3 -decalin by alloying..the two elements. IThe alloy~lheated to 90 0 could be broken up.with a pestle and -vhake~ai thkough a N:L grid into a capillary tube, wh*ere~,it was sealed.off. Powder photographs in an 86 =I dia.'.Cfjmera showeci.*a 'cubic cell with a 9-305 +, 0-006 -CS Bi was see!n! to.be 3 isomorphous with Cs Sb_ the structure of, which is laiown. The space group is Fd3m.~_ 07 aria th4bre are Cs' atoms h Cardl/3 - ------ - ---------- owl ~SOV/70 k 4-10/34 X-ray Determination of the Structure of,983 in 8(a) positions ands, 4Cs, 4WI~ inAhe 8(b) 1: po~sitions 4 'Observed and:-calculated values of'the intensitie's for Cs Bi were compared and agrood saiisfaciorily. 3 3 d 5.01 Cale The minimum . B:L-B:L distance in Cs ~Bi. I-is 4.03 "Which Is 5. outside the limits within which supor-conductivity. is found. Xn both Cs BI and CsBi., Q'Cs atoms lie in a. diamond net.in the interstices.~,of.,trhich: the other, atoms are found: in C.sBi2 there. Are tetrahech,*a'.of Bi atoms and in~ Cg!Pi a statistical arrangement o 14Bi 4Cz. In both Jr but structures.the Cs-Bi distances areA.,03, them Bi-Bi distance in CsBI 2 is only 3.43 against 4.031X in Ps Bi. 31 1 The change from semiconductivity to~stlper-conductivity can be followed in the series KBi Rb]3i CsBi 21 29 2 Card2/3 III It HIM II III IURIM ---- -- --- - - --- SO V/ 76-'~ 4 -14 -2 1/34 AUTHORS.- Samsonov, G.V., Zhuraylev, N.N., Pad erno Yu.Bo Ind! Melik-A.damyanj TITLE: The Synthesis and Properties of Samari-um:Hexaboride! PERIODICAL: Kristallogra f:iya, 1959, Vol 4,; Nr 4 pp 538-541 (USSR) ABSTRACT: SmB6 was prepared by SM 0' 3B11C, 2SmB +-. 3COI,'p the 3 6 Sm 20 3 + 3B4C.being. previously heated arj powders' to 350 0C and presse& into pellets which were h,e~at ed in vacuo for I hourat 1 000 19 alild th6n 10-15 a#n at 1 6oO OC. An alternative method,~: Sri 0 15B 213 2SLnB +, 3B0 was also successfiii. 6 oc Heating for 1 hour at i 65o aye -11mD in a finer- grained form than did the B4C Meihod.~~ SmB igidark 6 I blue.. It was exami-ned in an RKU-114 poirder camera :and proved to be cubic, with the CaB ~~s -noture and';cell 6' size a 4o128 +-0-003 observed and calcaated intensiti~as we're compared. Cardl/3 q SOV 54 The Synthesis and Properties of Samarium lexaboride The coefficient of-, amissIvity d 4.85~s/cm calc 0 was measured at temperatures betwe6n !)Oo:and 1 600 C and. took the form: log C C/% (1/T:,- l/T where e is th'o emissivity of an! : a~b s o lut ely black.i bodyl, and,. 6 reasingolitearly:~T rom 01#75 at OYO mjL dec 9 ta o.68 at 1 600 C.'' Tlie;.maximum,o'bse:rved densit of powder specimens sinter~e:d vxt~. 2 000 Oc~~was y 3 i2 4.79 g/cm The microhardness wa6i,2 '500:+- 300 kg/MM The electrical resistance was -v388:~llf"Cla .- The ibermo e.m.f. was measured.between 20 and;701): C. Between. 20 and 60 OC it was found to be -.iV/?C,. The'!Meltins 0 point under argon was 2 54+0 C. The .-oefficient:iof'. thermal expansion from,20.to 800 oc~was -6 6-5 x 10 The work function was"4.4 laV. These physical CardZ/3 1) 9 00 68 47 -24 (3)9-!e (6 ), bov/55"59 3 ~1 5/~ 2. AUTHORS, danovy G.-S. ZhuriLvIciv N. N, Alekseyevskiig N. Yee? Z~ TITLE: The Problem Qf the Superconductivityfof Compounds oflismuthl With Alkali Metals PERIODICAL: Veetnik 170 1 t ta!,,'Seri.Va vatomatikil ~~kha~ikiq ;A,, 1"h h!t_WM t 17 " rono as Z m 1. (USSR) pp 9 ABSTRACT: By analysis of the"aritical temperatur6l~of,bismuth-alksli com- linear dependence between th tempeiAture, T pounds a e ; as of the compound and~the atomic radius ,of thel alkali metal w 1ound.'This linear dependence'does not holit kor the LiBi com- pound; it possibly holds for the compou Inds with alkalin6 e6rth metals. A comparison between To and the~,atnmio radius is quite permitted for the isomorphic compounds~KBi,,,;RbBi., Cs3V but, less for NaBiq which has a'different typ ofl.lattice..With.an I , rature T ;'the minimum inter- increase in the critical tempe atomic~ spacings in the transition from;KBi to CsBi iii' Greasev 2 the dependence between theiminim'um distetnee aiad. T being1ftear. ar~'1/2 a tA.onshivbatw6en (he c ' f i'i means of a.rel and. Of 0 a d11k/AT ~900 ' 6804 60V/55"59-~ i6~2 ~ AUTHORS, iy.4.~ te'; 1.,,Ale6 ov Zhuravlevp X..N Zhdano~.g 0. 6 a ' ' TITLE.-. nds'. 0u The Crystal Chemistry of Superconductite Mimuth Comp PERIODICAL:; 'Vestnik.Moskovskogp.iXnivprsitet~a. Serij,& Matlematikig mqkha:ftiki astronomnq f1i!kT,*A7imifq' 19599 Nr ~it W 117 127 (USSR) ABSTRACT: The present paper deals with some rosul~s obtained by'an ana- lysis of ~ the. crys tallo -chemical data f ou'n'd b~ the autholre Con- Corning the structure of sup6rconductivol'bis;~~th compounds.~ 'A comparison between the suppraonductiveloropetties witkorys..- ' i 9, tallo-chomical data was carried.out on~the basis'o f known r oults determined in most cases by N. Yet' Alek*eyevskiy~(Refs 20 - 35) at the Institut fizioheakikh pioblazi Aff"SSSR (Insti- tute for Physical Problems'.of he AS USSh). The,first.part.,of t abil.".ty4 !of bismuth to the present paper deals the ca with, I ) .~ ,form compounds with vaiious".elements he poriodia system' 0 t and- 2) with the elo'otric properties of these compounds *!,Among other things the existence of the compounds K'B1,0 X3K'~ Rb Rb Big and Ce Bi:is supposed. lt~~Xay be',that thi om'. 3*29 2 2 Card 1/3 pounds CeBi 2IrBi. and P-LIBiAre supercond'uottv'96.With the The Crystal Chemistry Of Quperdonduative.Bismuth.Coin~6ur-di 8'07/55-59-3;-.16/32 of To. Bismuth.compounds *ith1ransitidm metals 6'how the' re- verse offeot.,The minimum~,interatomio,ipacin~gs bismuth~biemuth vary within a wide range in the case of. 1h avarious bismuth compounds. Bismuth compounds With small,lantl~aiso'withlarg$ bismuth-bismuth a- Vs oondictive, but all paoings are no uper t Com- pounds in which bismixth-bismuth~epaoingelare'within the', "optimim" Interval (3.1,t0:3-8 1) are stiperconductive.'i The superoonductive.modification of bismut1v*,prcb4b1y.has a,face- centered elementary cell. A'ltLr.& tablejhoWs the atomic-orys- talline structural propertiea -O'~f biemuth:compounde withlnon~ superconductive elements. The experiments,mg," by W. BiiBriA,dt (Ref 56) are indicative of a decrease of' th,) anIsotropy ",of the crystal structure of,ordinalry bismuth in~tho case of comprea- -aion. There are 3 tigureeo 4 tableaq and~,56 r6ferencesq; 40 of which are Soviet. ASSOCIATION: Kafedra fiziki 46a si, Verdogo tel (Chair for.8olid-state Phyi SUBMITTED: February 27P 1959 Card 3/3 Z 24 (8) UTHORS. /5'6-37 45 2'' SE V Zhura*lev,., N.1 N,i,-,-,Stepanova,:,A. A@, -3~ Y ITLE: 'tivity, of ;the CompouAd BiPt p condue On the Problem-6f the Su~ er PERIODICAL: ifiziki, 195 Zhurnal eksperimentalftoy i.teoraticl4sko,y, 9, Vol 37,'* Nr 3(9), pp 860 881 .(USSR)' ABSTRACT: ~The critical ~.ieid~~peratures.for BiPt f o~nd byi various 4~t~ thors , i i.partly., differ ootisiderabl Whereas, 0 log. itabo-rding :to 0 Matthias, T So 116-21 K, No Yeo'Alekseyevskiy!~ eit al. fo4nd 0 2104 K but he also showed that in eoko~BiPt-alloys s4ercon- K ets'2 3)~. As ductivity does,not occur down to 1o3 R ~ahown -by rafer6nee 4, BiFt orystallizes only~in ohe'1orm viz .~he~ gonallywith the~parameters al= 4420 Alidl-C ~~,'~-5510LAG truo ' 01 au hors. b h ture). Radiog;aphical~inv6stigationm ~coriqa!.- 6ut Yt -of this'-"Letter to the Editor" Tempera- gave the" aame~ result investigations.also showed that it~,crrstallize; in NiAs- structure, and the thermallexpansion oopff:.ciente (para IIlel and perpendicular to the hexagonal axis) Wait determined as:,amount- Card 1/3 -6 -1 -6 ~ ~ -1 ing to (4-0 + 1-0)-10 degree and (19. o, + 2. 0).10 degrqe On the Problem of the Superblzpnauctivity~ of t 61 8006 -37-3 -~55/6 9 Compound BiPt The authors inirestigatea';* several Bik,-~al Idys of diffbren~'Oom- position also:: Otoichiometrical onesi~jand sub oted 6em je h to dif f erent types of thermal treatment ~'i.It wai,howeveio f6un d~ hat i a' BiPt-ph"6 In lazi:AuNi- .~: ctilre again t n ill,cabesithe a ru orystalli'ze6:1 a as par4~6i d termi. ea ~as z.d'the lattl ers Were e A amouriting to. a 4.315 ~ and c - 5-490'4: 0-005 ~. The~~kloys were'in graphically ky, owder meth-- veatigate,d radio* means.:of the p od- and the maximum chazige of the val '~ n elementary cell ume o a n 'was found to am 4h5 toichiometric oom-~. otu!Lt to'-~0.6%,)as against position (48-3fatlby weight A . This :relauotion of them. elezentaryl.~ cell was found, at 45% by. weight Pt. Tie flh~~ge of the~size of the elementary pall and the herewitl~ 6onne 6ted variation of the:. 11111 Fill 4111111 [HIM1111 JHW lifillfiltillml IInq fl4 1 3 'Ilk SM J; 3.11 fill ~Jji g ell 1UHMM rill rill FES f gfir,[ F tp .it is "1 14. 7. Ix FA" ff . aal 41 EY as 20 Is go 11 "HIM, 11"', Q3 Hi INHAIMI U - - - - - - - - - - 24.7ioo V/11 55 -1 -20/3 so 10--.0 0' AUTHORS: ~Zhuraviev* N. N. Smirnov,,V.. A., '~inga~in, T. A7. TITLE: X-Ray Investigation of'Compounds IV 131. and Rb Sb; 3 (Brief Communication) PERIODICAL: Kristallografiya. 1960,:Vol 5,.,Nr 11 pp:184-137 (iMSR) ABSTRACT: RbBi a superconductor:) has been kn~ownito~fdrm dubid 2 crystals 1-ith a..,= !,A and bon& ~o-~-ti j.40 A~ lengt~hs Bi-t b -Bi 3.98 -A; -to-*Rb,4116 A. Semt: hductor -to ~Rb co s:Rb 81 R and Rb3Sb-were produced;by meltin&the.mixtures of.;the respective metals. The!obtained pr6ducts"were pure R~ Bi 3 and a mixture of Rb Sb crystals with tho66 of RbSb~. All are dark-gray, brittle, :.ands chemically more active, than metallic Rb.~ Tbe.X-ray data proved ~the -hexagonal. -pyniffietry ~of Rb.Bi, whose identity periods were a 6.42 + 01.02~A Card 1/3 and c 11.46 + 0.05 A; ~Rb Sb proved also ~to be-hekagpnal 3 X-7Ray Investigation of Compbunds'Rb Bi 3 78111: nd Rb Sb (Brief Communication) SOV/70-5-1-20/30: -3 6 02A and c 11, IT + 0:05 A. B th clom- with a .29 + 0. 0 )h kith K Bi;, theilr~-sp pounds.are isomorl ace groupJs C 3 ~6 /mmc;12 mole. wt and 8 atoms per uinit:cellden's'ity is .~3 3,76 for Rb Bi and 3.27,for Rb Sb.; The 'bond lengths~ 3 3 2 A; Bim-tc re: Bi-to-Bi z6.4 ;-.Rb 3-71A,~ Rb-to~-Rb 3.',85 Zin Rb Bi) and 3.73 A.(in Rb Sb)- S~-to-M 6 29 A-;- Sb-to- 3 3 (in Rb lai) and 3 73 A (in Rb7 S b)~; Sb-to-S~ 6.~ Rb 3.85 b. 29A; 3 3 Sb-to-Rb 3.46 A.- - Rb atoms: form.close-:)acked sheets Ath Bi or Sb atoms in triangular spaces;~Wl'~IAn the she'et and in body centers of triangular prisins.having Rb atoms of adjacent sheets at the vertices'and pina6oid, centers. A comparisoin reveals an in1cro-ase of Bi-t6-Bi bond from 3.40,A in RbBi to 6.42 V;in Rb Bi and.'decrease 3 of.Bi-to-Rb and Rb-to-Rb bonds. These changes aide, believed to be respohoible for the turn of a supe! conductor to a semiconductor. There area 2 tabies;~! Card 2/3 and,7 Soviet references. P2594 S/07o/60/005/004 004/012 E132/236o AUTHORS: Zhuravlevi N. 14. Zhdanovj G.S.,and'Kuz win, R.No? TITLE: The Atomic Structure*of Certain Compoundd of Bismuth and Antimony PERIODICAL: Kristallografiya, 1960. Vol. 5,'~Nop 553 - 562 TEXTs 1) Alloys of Bi and Sb,with alkall and alkaline earth metals. Bi~-Rbaj has -a diagram of stat e like that o f B i;,.K. There ar6~two, compounds Bi Rb and BIRb which give maxima:ini . tfte: liquid s. u 3 Rb and SiRb formed There are probably -two othercompounds Bi 2 .311 2 1 in peritectic reactions. The first-mentioned:eorapioxind Bi 16. 2,1 superconducting and has the Cu Ng:structure.,Jh,~ semiconducting 2 compound BiRb is hexagonal with ;a =.6.42, IIA6. A and 3 has the AsNa structure. 3 Ri__C_A~ shows two compounds.Bi Cm and Bics 3' 1PiCil2 is formed in a peritectle reaction. Bi Cs is superconduc-ting 31~i i 1L -the Cu M! 2 9 Card 1/4 82504 a 2 S/070/60/005/004/004/01. The Atomic Structure of Certain C�1;24ga600~ m 0 s f, BiBMuth and Antimony structure. BiCs is semiconducting and has the SKE 3 3 structure (cubic) with a-= 9.324;A For the Bi K, Bi Rb 2 2. Bi Cs series increasing cell size:is linearly accompanied 13Y 2 increasing T (temperature of onset of-supereoriductivity)6 k Sb-Rb SbRb has a complex;structure and SbRb'~is isOmorpOUhB with BiRb-and has. a 6.29, c 11. 17 *Bi-Sr and Bi-Ba~~A' The former, is cubic, CU Aq typej~ with 3 ai= 5.042. and the latter is tetragonal with a*5.i.88 dhd c r but is isostkuctural 5-157 ;ition met.618. 2) Alloys of Bi with roup'8,trans Bi-Rh The compounds Bi Rh, :~iRh~*~,.ind a, P and':Y-BijRh appear 2- but 'to-Bi Rh" has an orthorhombic cell a llo52~ .4 b 9-03,- c 4.24 A) and a structure appardhtly laikalo'gous~ to Bi Ni. The composition is therefore probably Di Rh. 3 3 .:Card 2/4 fil ..... .... ...... ...... ---- ------ 825041! s/o76/6o/oo5/od4/oo4/Ol2.. ZIO/E36o The Atomic Structure of Certain Com pounds.of. bismith and q Ahttimony a-Bi Rh was reported isomorphous ifith Slb Co but thi, 8 S 2 2 uncertain. 4Z~ The, phas e 'diagram:, is I' g 1y known Mi. El. s'. Teor.Fiz.; ar k 32, 1305, 1957). The y-phase near 5011 by wt.'! Pd is: h xagon a with a 7,76, c = 5.86:~A and appears. to ~1~e a superstructure of NiAs. Below 400 0C there is a. eutectic dec ay to BiPd and BiPd It may be Bi Pd A 3 3 5*. The phase'diagram is known. There are the';p~hases 'a'- ; ~ T and P-Bi Pt and BiPt. Various differences in the;value of i 2 k reported for BiPt are explained by the possibillty:of obta~'Inln~ g this compound.- in a defect state givlng a 0494 volume decr se~ in the unit cell. No Bi-rich alloys of Ru,.Os and Ir could be:pirepaeeld, 3) Alloys of Sb with transition metals of gx*oul) 81 Sb-Co Be-sides Sb Co and SbCo-la new compound'Sb.Co.with a,-,dubic 2 AS 3Co structure has been X ound,. Card 3/4 p 82504 S/07o/60/005/004./00410'12 The Atomic Structure of Certa o2nds,of Bismuth.: and Antimony "A Sb-Rh Three compounds have been found in this system and the 'general lines.of the phase d:LaSvam;are.apparenti Sb-Ir The existence of Sb Ir Sb Ir and SbIr, av,q. b a on 7 3 2 established. Sb Co, Sb Rh and Sb Ir are itomorohous. 3 3 3 The structures of Sb Co,,Sb Rh and Zb Ir are islomar~~ous and i. 2 2 2 similar to that of a-Bi 2R h. Such isomorphism'doeft hot pert in M in the Sb series. The,superconducting trangftiowtemperatu*res~ 2M of the various materials are tabulated and dkscusse~l in te M r of their cell sizes. There are 5 figures, 7 tables and 36 references'. 5:iEnglish 5 German and 26 Soviet. ASSOCIATION: Moskovskiy.gosudarstvennyy uniVersitat im, M.V. Lomonosova (Moscow State Univeriity im. M.V. Lomonosov): SUBMITTED: 60 February 23,119 C ard 4/4 015 1-02, IN-2, lt)4.~ S/180/61/000/'001/012/ E021/EW6 G AUTHORS: Zhuravlev, N.N.', Makarenko , G.N., 8ame onov, evot --am e I-rn-i and TMeb lva,_ G.rj,'(Kiyev) 'p- TITLE: The'Queation of the Properties anti Phase Composit on-1: of Alloys of Boron and Carbon -PERIODICAL-, Izvestiya iinauk SSSR, i3skil Akade% Otdeleniye kh nauk, Metallurgiya i toplivo 1961,i No.l,,'PP.l33'_14l' TEXT: The aim of the work.was to~find a method oflpreparinj~ relatively pure:alloys of boron with.carbon ands Ao lnvestigat~' their _physical i9s.and phase composition, 1~ The~ initial materkais _propert -99 andilamp bl ack ..were powders of amorphous boron (96 5 tF -5%)! in alcohol," dri d'and si V (99.8% C, The powders were mixed e' e& through 150 mesh. Several.methods of preparation were trie&, the., most acceptable being to hot-press a mixture ofithe'powders in an Some arburizaiionji' -argon atmosphere in graphite press-formers. c took place (chemical analyses were made bytT.N.Nazaichuk). Ii This could be overcome by using a molybdenum 1"Tigibut it re uiied ..An contamination with 1.3 to 6.9% moly~denum._,,,JBoron nitridei linings avoided this contamination... The alloys prepared were .7examined metallographically, 'etchin bylanodic~ treatment: in a card 1/~ U j 89616 s/i8o/61/m/oOl/012/01,51 ls~ E021/E06..~!, The Question of the Properties /CM2* 9 to 102 A and 10 'to 20N. ~T~e -i1 4o% KOH solution at 0 . .:.structures obtained are shown in FiSdA. The alloy.viitW 6 U ~ ~k-boxi`: i carbon had a.eutectic structure, ~ At.about~ C the structiire was pr:actically single-phased. and a~t ~10.2% carbon them Whole fietld. appeared as a eutectic. ..It is proposed that a:-eomj)o4nd formsiat'~ about Wcarbon with. the formula n 0h)j, d bol 812C, , A aoco d )Oun gins, to appear at about 10% carbon and is either D13C2 oir~,Bl 2C3~ 0 X-ray analysis of the alloys was als' carried out: avt& confirmed'the. .~metallographic observations. Fig.2 shows the photograph of thlo and B The Ne phase had a rhomboltedral phases B12C 4C structure. Between 20.9 and 80%, C, : the alloy'consiated of two phases: the rhombohedral phase,with maximum carbon content in~the~l cell, and graphite. At 61% carbon, an X-ray photou!r.%ph:,vrith a which d d not large number of lines, the intensity and position of' mpound..-'. to B4q, was obtained. It is proposed khat a c0 richer in carbon than exists at~high temperatures, which B4C ' -,decomposes to B4C and graphite at low temperatu~ea.~ Micro-, hardness mea~suremants showed that in the unanneal" sia te ther e iis~ a maximum corresponding to the proposed phase Ali2C (About 6000*gh4l : After annealing, t~e,,hardness:.Curve,io.amoothed :out and the ha~rdne~ v Car d 2/ ' Z", 2OUT '5/070/61/oo6/001/005joll.- E032/E314 'a o 0 -A- 11 A 0/39,~; AUTHORS*., Zhuravlev, N.,Nq and Me lik-Adamyan TITLEs A Study of the:CryBtalline Structure of Super- conducting Compounds SrBi and Biti PERIODICAL: Kristallografiyat 1961, vol. ~0:0 No.;': I,' pp. 121:__ 12k TEXT: According to Matthias,and Hulm .(Re f SrBi and! i BaBi are superconductors~having transitions tempe.ratures~ of 3 5.62 and 5.69,OK. A search off~th,e'literature re~iealed that thestructure.of these compounds had not b,een,investlgat4d. The present authors have determined the stJructure of theiabove compounds from X-ray diffraction photograph's (Oovider method). : ~Co i~adiditio The obtained at room temperature, using Cu and results for SrBi are interpreted on the. ~4asis Of, a' cub' ic. 3 r p lattice with a period of a =-5.042 + OiOO2 Ai :This i,nterpretation,taken together with a coinparispfi~of X-ray patterns for CaPb with those for,SrBi indicaies'the Card 1/4 S/070/61/oo6/ooi/oo~/oll,. EOWE30 A Study of the Crystalline Struc~ure .... isomorphism of these compounds (structural ttyl~e Cu, Au P 3 1 sp.gr. Pm3m 0n The Sr and Bi atoms occupy thet. followi: positions Srl (a) 000 0 Bi,3 (c):1/2 1/2 0,0 1/2 0 1/2-9 1 2 1/2. The BaBi patterns were interprefed,on the balsi-c-of a 3 tetragonal tell with the following periodst ;::Tkiel. results; a = 5;. 188 + 0,003 and.c = 5.157.+; 0.003 obtained.for Baft on the basis of this interpretationtak-6n. 3 together with the. comparison with X-ray,patterns Xor SrPb! V ,indicate the isomorphism of these compounds.;!''Th4~ a'ppropri4te~ space group is P4/mmm -, D4h In the case of the BaBi 3 compound the Ba and Bi a-tome have the following positions Card.2/4