SCIENTIFIC ABSTRACT KOGAN, V.S. - KOGAN, V.S.

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• Collection: Scientific Abstracts
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• Release Decision: RIF
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• Document Creation Date: November 2, 2016
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• Sequence Number: 4
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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The Experience of the Moacow.Automatic Subscriber Telegraph Exchange
With Fully Automatic System
some minor modifications. The laok of a manual on the
subscriber telegraph network, available to subscribers and
operatoreq causes in a number of cases the. continuation of,
the manual system. The'refore, GUMTTS of the USSR Ministry
of Communications should.spood up the publication'of ouch a
manual. Tho final part of the article is devoted to'the
numbering of the subscribers of the automatic systemg' and
the tariff classification connected with it. There are
3 diagrams.
ASSOCIATIONt Mookovskaya stantsiya Abonehtskogo telegrafa (Moscow
Subscriber Telegraph Station)

NOVIKOVO Vasilly Vasillyevich; @UBOVSXIY, Leonid Isaakoviw4
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USWSolid:State PbpIcs Mechanical P"porties of Crystals and Polycrystallize
COMPOWMANS, 11-9
Abst Journals Referat Mwr - Fizikss No 32., 1956, 34862
Authors. Garber, R* 10.0 Oindino X.- A. pKogan IV. S.j, IAzft*V# B. G-
Institutions None
Title: Byestigation of'Plastic-Properties of Beryllium Mmocrystalm
Original Periodical: FiZ4 MOU1107-1 metalloyedenlye, 1955, 1, No 3. 529-537
Abstracts 46cimens'=Lde of Be (99.7%) Vera xubjo@cted to single-axis caspessIce at
Umperatures from -253 to 8000. The "d.of deformation was constant (0@'Q3'W/sec)4.
At higher taimperaiures.. the testa-wers performed in vacuum. The specims were shAPed
as rectangular parsUolopipedis The axis of the compressing forces was In the plane.
of the base (001) , Over. the entire temperature rang'so the deformation . of Be was ac-
companied by the appearance of. twin etresIts. The twine occurring at a253 and -1960)
were characterized by small, thickness (2-4 mu) owing to the considerable reinforcement
on their boundaries with, the mother crystal. At higher twperatures* thicker streaks
are formed. When the individual streaks merge with each other., the entire volume of
the crystal Is transfwmed, into the twin state without damage to its solidity* The
1 of 2 1
P. K

USSR/Solid State Physics Meebanical Properties-of Crystals and Polycrystalline
Abet ;durnals Raferat Zhur - ritikap No l2p 1956, 34862
-Author: Garber,@R. I., Gindin, I. A., JCoganj, V* S., Lazarev,, B. 0.
Institutions None
Title:, Inve&t1gation of Plastic Properties of Beryllium Monocryathle
Original Periodicals -Piz. metallov 1, metallavedenlye, 1953., 1, No 31 529-537.
Abstract: transition of the Be movocrystal into a fully-tvinned state is related to
the process of mechanical twinning in the (102) plane., and is particularly easy to ef-
fect at 4000 and above. In addition.to the principal system' of twins along (102), one
observes also twins in the (101) and (193) Planes - The mechan' a of slipping of @ Be
depends substantially on the temperature and orientation of the specimen. In aom*
specimens, base slipping in observed even at -1960. The plasticity of Bejp- which In-
creases monotonically with temperature., reaches a maximum at 4000 (8 x 26@) and di-
min4ahes somoubat at 60& and Increaeas again at 8000. The mekbanical.cbaracter-
istics of the plasticity of monocrystals of beryllium are determined, and-their de-
pendence on temperature. The yield point when slipping along the (100) and (101)
planes .44minishes by approximately 4 times when heated from 200 to 8000*
2 of 2 2

Category @USSR/Soldi State Physics Mechanical Properties of E-9
Crystals and Crystalllne@Compounds
Abs Jour @Red Zhur Fizika, No 3P 1957) No 6787
Author lazareir, B.G.
Garber, H,L, Gindin,, VIA 0
Inst 1
Physico-Technical Xnatitute, Academy of Sciencesp Ukraine SSE
Title X-ray Investigation of the Plasticity of Single Crystals of
Beryllium
Orig Pub Izv..AN SSSR, ser, fiz., 1956, 20, No 6, 639-64o
Abstract X-ray diffraction.,,metallography and micro-interferometry
have been used to investigate single crystals of beryllium,
cut in th6,form of ractangular parallelopipeds, vith one
of the faces aligned vith the plane of the base. The
specimens vere deformed by unilateral compression at temperatures
-from -253 to 8000. The results of the Investigations
are summarized in a table.
card !Pq
-all

pendicular to
compression
axis,
Binar Azis
If 'a pa-
rallel to
compression
axis
Category USSR/Solid State Physics - I*chanical Properties
Crystals and Crystalline.Compounds
Abs Jour Ref Zhur Fizika.,.No 3, 1957, 11o 6787
Blements
Abstract Character of PlastIcit & its
Orientation, Mechanical Twining Total Reori- slip-rav
of Single
Crystal
plus
4000
Dlus
On-
tation; symmo-
try place (102)
4ooO plus
Room temp
& above

twin
region

SUBJECT USSR / PHYSICS CARD 1 / 2 PA 1613
AUTHOR Komi V S. LAZALirV, B.G., BtjUrUVa, g.y.
=L-?-= P
TITLE GiVtai Structure of hycU-opn and Dauterium.
&RIODICAL Zurn.ekspoi teor fis) R., -fasc-3s 541 - 541 @(1956)
Issued: 12 / 19;6
The present work [e-mail] structure of polid deuterium. The samples of
liquid D were produced'by condensation on a copper capillary filled with liquid
helium. By, the method of sharp focussing roentgenographs with distinct lines were
obtained after exposure-of from 1 to 2 hours. Unfortunatelyp the lines of D are
visible only under small angles) which renders a reliable interpretation of the
X-ray pictures and an exact,determination of lattice parameters difficult. With
the highest degree of reliability attainable in this case,, the structure of D
was determined as tetragonal with the axial ratio c/a a 004 and with the
parameter a - 5,4 1 . The density D in this case amounted to 0,18 g/cm3. This
r6sult made it necessary tocheck the data concerning the structure of hydrogenp
because the difference in the'structure of the lattices@of H and D appeared
strange. Such a difference could occur particularly in the case of the existence
of a polymorphiam with a transformation temperature of -4,20 K in both isotopes*
However, neither H nor D change their structure at from 1,5 to 4.10 K.
In the work by W.H.MSOM et al*Comm.Phys Univ.Leiden, 209 d,(1930) on the
structure of solid H no roentgenographs ;;e mentioneds but they apparently
consist of individual reflexes through whichIDEBYEs arcqaere plotted. A simple
utilization of such a roentgenograph taken in accordance with the conditions

iurneekspoi teor.fis,, 31, faacj@ 541 - 541 (1956) CARD 2 2 PA - 1613
resating from MISOM's work shows that the breadth of lines covers the spacing
between some neighboring lineso Thus, the reflexes assigned by M160M et a, to
various lines may belong to one-single line. This.may probably also explain the
fact that to the 5 intense lines in lUISOUtaxoentgenographs there correspond
three lines in the roentgenograph described here. Furthermore, KKEbOM et al.
erroneously assigned several lines to the spectrum. When a filter which
eliminates radiation was usedp all,lines belonged to the system of inter-
ferences originating from Ka - radiationo In the authors' opinion, tha data.
found in the UIDLN laboratory and accepted by all books of reference are wrong6
The authors believe that the roentgenographs of H indicate a tetragonal structureo
The assumption that the lattices of H and D belong to a non-cubicaL syngony,is
confirmed by the fact thatj according to observationsmade by the authorso they
have a double radiation refractions This does not confirm previous assumptions
that solid hydrogen is optically isotropic.
IMSTITUTION: Phyvical-Technical Institute of the Academy of beiences
of the Ukrainian &SR.

P
SUBJECT USSR PHYSICS CARD 1 / 2 PA 1475
AUTHOR GARBERjR.I.j GINDINtI.A., KOGAN,V.S., LAZAREVOB.G.
'TITLE The.Recrystallization of Metals at Low Temperatures.
PERIODICAL Dokl.Akad.Nauk, 1109 faso.1, 64-66 (1956)
Issued; .11 / 19-5r reviewed: 11 / 1956
This work deals with the direct observation of the miorostructure of technical
iron (003% C) and nickel deformed at the temperature of liquid nitrogen. The
examination of iron and nickel makes it possible to explain the influence.exor-
cised by the principal forms of plastic deformationt namely of twin-formation(?)
and creeping on the creation of inhomogenoities of the crystal lattice caused by
deformation and on the occasion of processes of reorystallization which ate due
to these inhomogeneities. Fine- and rough-.grained samples with 25-30p. and 100
- 200,@w diameter were 'examined. Deformation was brought abnut either by rolling
or by pressing a hardened ball through an immobile thin-wallod tube in liquid
nitrogen. The degree of deformation was between 5 and 14%. The X-ray structure
analysis was carried out: a) in the initial state, b) immediately after the de-
formation in liquid nitrogen without heating up to room temperatures, 0) after
a '10 to 12 hours' stay period at room temperature. Parallel with X-ray investiga-
tion a metallographical investigation of the samples was carried out.
In the case of the iron and nickel deformed in liquid nitrogen the structure was
refined by reorystallization after heating up to 200. A microphotograph of the
structure is attached. While the ball is pressed through the tube (in liquid
nitrogen) a deformation structure is produced in the sample which is destroyed

Dokl.Akad.Nauk; 110, faso.1t 64-66 (1956) CARD 2 / 2 PA - 1479
by subsequent heating up to room tomperature.'L similar structural change is
found in iron samples after rolling in liquid nitrogen, but in this case the
degree of refinement ishigher than on the occasion of pressing the ball
.through the tube."The degree of refinement in iron and nickel after treatment
at low temperatures followed by heating to 200 depends on the size of grain of
the initial struoture as well as on the,degree of deformation. For the pro-
duction of miorodistortione-the initial stages of deformation are of import-
ance at low temperatures, on which oocasion.the work performed by exterior
forces goes over nearly entirely into the latent deformation energy. On the
occasion of deformation (beginning with an 8% deformation) as a result of
pressing a ball through a tube mioropores are produced, a process'which may.be
connected with mechanical twin formation. In all the cases of recrystallization
at low temperatures investigated on this occasion, deformation was brought
about by the formation of creeping atri ee either in a pure form (nickel) or
in connection with twin formation (iron@-
INSTITUTION: Physical-Technical Institute of the Academy of Science In the
USSR.

. I - @@ i I. K" @ , POEV-, -.1
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7 7
AUTHOR: Garber, R*I. 9 &gel V.Sz, and Polyakov, L.M. U3
TITIE: coagulation of pores in-polygonised common salt. (Koaguly-
atsiya por v poligonizovannoy kamennoy soli.)
nRIODIOAL-."gi&ika Me&allpy* I Met9illovedeni-el,' (Physics of Metals and
Metallurgy)t l957v-V0l,IVv NO-1 (10)t PPt,89-939
ABSTRACT: Annealing at 180 00 of common salt single crystals under
natural conditions or @ subjected to slight plastic def om-
ations causes polygonisation. Utilising the translucency of
specimens, it was possible to study optically the process of
coagulation of.pores at the surface of blocks and the macro-
mosaic of blocks forming during the process of polygonisation.
It is shown that the point boundaries of the bloc 'ks forming
during polygonisation of pure-single-phase substances conalst
of chains of coagulated pores. The formation of a step-wise
relief at the surface of the crystal near the pores have been
established'which has the shape corresponding to the orient-
ation of the faces of the cube and the faces of a rhombic
dodekhedron lattice of.common salt. Comparing the results
described in this paper with known observations of polygonis-
ation processes in metals, it can be assumed that metallo-
g3aphic detect-Ion of blocks is apparent3,v possible only in cases
in which the metal possesses pores, admixtures or other

Coagulatim'of pores-in pol7gm4sed coma= salt. 1700 .
easUy diffairlug COMpauent" althou'Sh Iblooks can. palso obc=
ildch.carmot be detected mstla,llo-@-U4 kftl 1-
7 - ap-res t, .32 @refemxces, 5 of
Pl#oi,co-Tecbnical: Inotitute
Ac St Uk3%ine Reed. Msr%..1936@-
-
1 NO RM
HIM,

L-A
AUTHORS: Gindin, 1, A.)and Kogan, V, S.
TITLE: State of the surf-ace layer of a single zinc crystal after
grinding and annealing. (so'stoyaniye poverklmostnogo sloya
monokristalla tsinka posle shlifovki i otzhiga).;.
PERIODICAL: Fizika,Metallov i-Metallovedeniye, 1957, Vol-51 No.21
ppo 326-330 (USSR)
ABSTRACT:- In earlier work of the authors (Ref.3), It was found
that work hardening caused by grinding activates diffusion
processes which then may become very intensive even st.room-
temperature. It was, therefore, considered of interest to
machine such specimens and make X-ray exposures of these
under conditions. such that these processes are either
completely eliminated or at least appreciably reduced.
For that purpose zinc monocrystals were ground along
their'cleavage planes at the temperature of liquid
nitrogen (-19eG) and X-ray patterns taken directly After
grinding, prior to heating them to room temperature and.
aft8r "annealing" at room temperature and at 100, 150-and
200 C. Comparison of the structHe of the surface.layer.
of zinc specimens ground at -196 0 with those groundat
room temperature enabled elucidation of the influence of:
Card the mechanical properties on the processes taking place
M,

State of the surface.layer of a single zinc crystal after j
and annealing.
Card 2,13
in the.specimen during grinding. As a result of annealing
of the specimens certain details were detected in the
state of the latlice of the surface layer of the specimens
after grinding,which were not detected in previous
experimentsi during which,the specimens were work hardened
and subsequently investigated at room temperature without
any heat treatment. It was found that the surface layer
of the monooryital breaks up into finegrains which are
disorientated morestrongly in specimens for which the
work hardening was effected at the liquid nitrogen
temperature. The annealing"does not re-establish the
monocrystal nature in the surface layer and leads to
recrystallization with grain growth towards the depth of
the monocrystal. Under the recrystallized zone there is
a layer in which the monoorystal consists of blocks with
orientations approaching the initial orientation and the
depth of these- ayers increases with the annealing
temperature. In crystals deformed0at the temperature of
liquid nitrogen and annealed at 200 CT the non-distorted
monocrystal was detected only after etching to a depth,of
30N, -In crystals deformed at room temperature and

126-2-17
Statd' of the surf ace layer of a single zinc crystal after grOeding
.tnd ann aling,
subsequently annealed,.the depth of the distorted zones
was greater still. X-ray patterns and micro-photographs
are included.
There are 4 figures and 7 references, 5 of which are
Slavic.
SUBMITTED: April 16, 1956 (Initially), December 18, 1956 (after
revision),.
ASSOCIATION: Physico@-Technical Institute Ac. So. UkrainLan SSR.
(Fiziko-Tekhnicheskiy Institnt 0 USSR).
AVAILABLE: Library-of Congress.
Card 3/3

AUTHORS: Garber, R. lot Kogan V S. and Polyakov, L. M.
TITLE:. :Dislocations or Pores? (Dislokatsii ili pory
PERIODICAL: Fizika Metallov i Metallovedeniye, 1958, Vol 61 Nr 51
PP.934-935 (USSR)
ABSTRACT;.Hirech et al. (Ref 1) reported direct observation of
dislocations which appear in aluminium foils rolled down
or otherwise reduced to'0.5 ji thickness, annealed in
vacuum and etched in a dilute hydrofluoric acid solution.
These dislocatione.were observed by means of an electron
microscope. The present authors suggest that the
electron micrographs given by Hirsch et al. may also be_
interpreted as assemblies of mier.opores at boundaries of
blocks of polygonized aluminium,_ -Such micropores were
observed by the present authors'(Ref.2) in their studies
of polygonization of rock-salt, Comparison of'optical
micrographs of polygonized rock-salt with electron
micrographs of aluminium films (Fig 2, taken from Ref 1)
shows that they are:very similar, In both cases t@e
mutual orientation, of,adjacent blocks is almost the same
Cardl/3 (1-20) and the distances between defects distributed

Dislocations or Pores,'? SOV/126-6-5-29/413
along block boundaries differ by three orders of
magnitudei simply because of the difference between
the magnification in the two cases (40OX optical,
100 OOOX electron-microscopic). In photographs reproduced,,
by Hirsch et al,ithere are lines, marks, spots, etc,,
inside polygonized blocks. These are ascribed to
dislocation lines and traces. The present authors point
out that such marks, lines etc. may also be due t 'onon-
uniformities which are produced inside polygonized
blocks by deformation. Annealing by the electron
microscope beam produces grouping of vacamcies alone such
non-uniformities and some of such groupings may migrate
to the block surfaces, The-authors conclude therefore,'
that the results of Hirsch et al. cannot be taken as a
proof of the presence of dislocations in their aluminium
samples. In contrast to Hirsch et al. (Ref 1), Heidenreich
(Ref 4) did not observe any dielcoations or pores in
aluminium foils produced by roll1ag and electrolytic
etching with intermediate annealing. This may be due to
.Card2/3 insufficient saturation with vacancies of such foils,
because Hirsch et al.-reduced the thickness of their

Dislocations or Poreal SOV/126-5,-5-29/43
samples to 0.5 ji while Heide=eichle samples we@:e of
125 ji thickness.
There.are 2 figures and 4 =eferences, 2 of which are
Soviet and 2 English,
ASSOCIATION: Fiziko-tekhnioheskiy institut AN SSSR
(Physico-Technioal Institute,' ka.9c., USSR)
SUBMITTED: August 26,.1957
Card 3/3

----- -----
SOV/126-,- -7-5-13/25
AUTHORS: Burlakov, V, Do and Kogan, Ve So
TITLE: Intermetallio Phases Formed 'in the Iron-Tantalum S@stem as
a Result of -Diffua Ion - -- ( Into metall iche skiya fazy, voznikayu-
shchlye pri diffuxii v sisteme zholazo-tantal)
PERIODICAL: Pizika metallov I metallovedeniye, Vol 7, Nr 5, pp 708-712,
(USSR)
ABSTRACT: In this paper diffusion in the iron-tantalum boundary of
b1metallic specimens.,.made either by deposition of iron
on a tantalum plate from the gaseous phase in vacuum, or by
directly uniting the.two metals in the solid phase* has been
studiedo .,Such bimetallic specimens were soaked in'vaouum
for: a long time at 1200-140000, " 'and studied metallo-
graphitally and by X-ray methods. In the micro-sootion a
-layer of the intermetallic compound FG2Ta can clearly be
seen'at th@ place of contac@ between iron and tantalum-
theld at 12000C for 100 hours) (see Figol). Fig*2 shows the
mioro-specimen of an g1loy (5 -at. % Ta) -formed as a result
Card of diffusion at 1400 C. Pig.3 shows a micro-aection of an,
allo (20 at. % TO formed as a result of diffusion at
140010. Fig.4 shows the miero-section of an alloy (56.at.

SOV/126-- -7-5-13/25
Intermetallic Phases Formed In the Iron-Tantalum System as a Result
of Diffusion
Ta) Iformed as result of.diffunion at 1400oo. Fig.5
shown a micro-wootion of an ajloy (55.at. % Ta) formed as
a result of diffusion at 1400 0. In Fig.a@ X-ray pictures
of phases forming during the diffusion of tantalum in iron
are shown.. The intermstallio.compound F92Ta has &-lattice
of the @ Zn2Mg type ASee -Tarsohisoh, Ref'OO), consisting of.
4 atoms of tantalvm:and 8 atoms of iron per unit cell.. In
the Znx
jjUg latticej which is isomoryhoun,with that of F02T',
magnesium atoms can displace 2 of the 8 zinc atomaj in which
case the compound ZzMg forms,, having a lattice analogous
to that of Zn2Mg (see Tarschisoh# Ref-7).-It is possible
to.assume that such a displacement taken place in the FePT&
lattice with the formation of,the compound" FQ'Ta. - An a
result of the above investigation an iron-tantalum equilibrium
Card diagram is suggested, having an appearanoe analogous to that,
2/1f of magnesium-zina,,aontaiulng Intermetallic phases which are
isomorphous with those of the iron-tantaltim system* in Fig.

SOV1126-- -7-5-13/
25
Intermetallie Phasoo-Formed in the Iron-Tantalum System as a Result
of Diffusion
80 this equilibrium dia, i shown. its "iron! @oorner
(up to 33 at. % tantalumf"is :nown- from literature data@
(nos Genders et allij,'Refel).. Forthe construction of the
,Mtantalum" portion of the diagram the following data were
available to.the authorst lo.The existonce of,an inter-
metallic compound eorresponding:t,o the o sition ?oT&;
2. The composition ofthe outectic-60 atlo'tantalumo An
X-ray" Inivio,stigation has dxm t2at thBioutootle consists essentially
of the Intermotallio compound PoTa. (3)'The eutootis Unpershm.,.
which is aj@proximatsly 136000. 4*,The existanoo of equili-
briumbetween the intermetallia compound F92T& and the liquid
phass,'rich in tantalum at a temperature above 140000 and
the precipitation from the laquid phase of crystals of FeTa
Card at a temperature below 1400 0. 5. The absence of a gradual
3/)+ transition Irom.ths, .- Fs2Ta lattice to the FoTa lattice.
There are 8.fIur:& and 7 references, of-whiah 1 is Sovietp.
1 English-and rmane

31

AUTHORS: Kogang V, S#p Lazarey, Bo Go, Bulatovaj R. F, 56-1-42/56
,TITLE: On the Phase Diagram of the System Hydrogen - Deuterium
A (0 diagramme sootoyaniya sistemy Yodorod-dayteriy)
PERIODICAL: Zhurnal Ikeperimentallnoy i Teoreticheakoy Fizikiq 19501
Vol, 34P Nr,1j,pp. 238-24o (USSR)
ABSTRACT: At first reference is.made to papers dealing with the same
aujact. In,the Congress on Physics of Low Temperatures
in June 1956 in Leningrad reports were also made on the
results.of Investigations of the crystal-struoture of the
mixtures of hydrogen-isotopes. The solid solutions in such
a.system only exist in limited domains of concentration. The
presett.paper gives more accurate data on this system which
.
were obtained on the basis of the'thermal analysis of the,
hydrogen-deuterium mixtures, The mixtures produced of pure
.isotopes were condensed in a calorimeter imme*rsed in liquid
hydrogen..After the evacuation the Sixture was slowly heated
in the temperature,interval 14 - 19 C. The thermal-analysis
showed a horizontal part on the solidus ourve at 16,4 K, By
a comparison of the date of the thermal analysis with th
results of the X-ray photographs at a temperature 'of 4p2 K
Card 1/3 the approximate boundaries of the domain of the separation
K

On -the Phase.Diagram of,the Syotsm,1Hydrogen Deuterium 56-1-42/56
in layers could-be'datermined and the.phase diagram."hydrogem-.'
-d utoir .1,um 4w@gft,*rail -o6dd,bs' outlined. 1he -existvnce@of---
in crystallizations of -the mixtures
at ponoontra*ionie @of fr*m 26 fo 52 per cent by volume of
th raal
wa r4erifiedi ln@qarallsl with the a
analydis'*tlii~'X.~rai.%struotur6 Investigations of.the.,hydrogen-
-deuterium-mixturse and of.the pure isotopes were continued.
A,certaintperfectlon of the method of photographing permitted
the re -moval ofthe parasitic lines. The roontganogrLme
n-lines which correspond to the distance's
oontaiw2`hy o i
d, 3p,15,1 and d-,2P79 A between the planes. Of the
deuteriuta-lattioa only.one line with d@-2,04 X exists. Due
to the high decrease of the Intensity of scattering no lines
exist-under large angles. There exists a ooncentration range
in whidh@the solid mixtures of hydrogen and'douterium ire,
two-phase. Tha,'problem of the exact structure of hydrogen
and douterium'still remains unaolvett. In any case the
.1attices of hydrogen and dautori"s are different. The results
obtained hers*,indiasts.a,qayarationAn layers in the solid
mixttires of tha'hy4rogen isotopes and correspond to the
conclusions drawn,by Prigothiri (referenda 3) on theexiatence
Card 2/3 of a critical temperatureq below which the isotope viixtures'

240)
AUTHORSs Garberp R. I., Koganq Vs S., Polyakov, L. X. SOV/56-35-6-7/44
TITLEf The Growth and the,Digeolution of Pores in Crystals
(Rost i.ra.8tvoreniya por v kristallakh)
PERIODICILs Zhurnal skeperimentalln i teoreticheskoy fiziki, 1958, Vol 35.,
Z
Nr Op PP. 1364-..1368 1USSR.
ABSTRAM In the present.piper, the authors describe the experimental
determination;of the time-dependence of.diffusion processes of
-sintering and of par*-ooalescenos.in rook salt. The results obtain-
ad-agree.well with-the theoretical formulas by I.N. Lifshits and
V.V. Sl Iedov' (Hof- 1)3 Vn(4/9) j Dvol,'r, (T) - 2(DV*;O%@"and
OL a oiyol/kT (D diffusion coefficient of . vacancies, Ta , duration
of - -sintering, QO-M total - initial overeaturation,, 6'M surface twelce
V *-.the.volume,of a vacancy, co vacancy concentration; the first
equation describes the low of pore growth,.the second the time-
depqndence,of the-zone breadth f in which the Pores aissolve).
.The authors-numerioally determided a number of parameters
Card 1/3 characterizint diffusion in rook salt, as e.g. the diffusion

The Growth and the Dissolution of:Pores in Crystals SOV/56-35-6-1/44
coefficient D(T)p T.in OKS
T 0 farthei?, the time-depandeno's of the beadth
10 of-the@,sintering.zone for 500 and 650 C
693 7-9-10-1 (Fig 4), the-.d*pendence of pare dimension
773 3-1-10-9 on sinterin of long duration (t.50000)
ae Fig 5 , lnf / ) as a function of In :
923 -10 , Mg 6it ate. Attached to this article &TO
-7
1023 0-7-10- very good photographs of salt-@# irona-9 and
magnesium.aingl-e crystals, of pores and salt.
crystal@bridgee in-various,d4grees of onlargementg at various
sintering,.-tompera,tutest-and.various.durations of sintering (up to
60 hours) 1-*..io--,~shown,~.that.-sintering . phenomena develop not onlyas
:a the direct exit -4f the
va cancie a-: 9xL.:th&._-Irse surfaosi-but also-via*an intermediate stage-
in-whioh.the vacancies-accumulate on maorodefects with subsequent'
formation:.Of.largolnegative oryowe on.the latter. Coalescence of..
pores wawobserved-inthe annealing of,single crystals of metallic.
am#le'e-i the -preparation, method -of which (vacuum. distillatiozi-eto.--).@_
the vacuum
is joade-responsible@fcr.:the initial porosity. Thus,
treatment-of-iron crystal took 42 hours at 10000C'(Fig 11), that
Card 2/3 of the Mg.single crystal 60 hours at 400-4200C. In conclusion
'AN 4K,
YN-
V ZO@.
0%
R-1
5011
I! K RA
�R

The,growth and thw-Dissolution of Pores-in-Crystals sov/56-35-6-7/44
the authors"thankTrofessor 1. M. Lifshits and V. V.,Slozov for
discussionsf.and.V6 K, Sklyaroy for his help in carrying out the
experiments.-There are-12 figures, 1 table# and 4 Soviet references.
ISSOCIATION: Miko-tekhniobeakiy institut Akademii nauk Ukrainskay SSR
(Physico-Technicol Institute of the Academy of Sciences,
Ukrainakays 3SR)
June 17, 1958
SUMITTEDs
Card 3/3

SOV/120-59-1-42/50
AUTHORS:Koga,n, V.'S., selivanovi V. P., Bulatova, R. Fe
TITLE: A Miarofocus'X-ray Tube with an'Adsorption Pum
rentgenovskaya-trubka s adsorbtsionnym 4asosom5 (Ostrofokusuaya
PERIODICAL: Pribory i.tekhnika-eksperimenta,,1959, Nr 1, pp 145-147
(USSR)
-ABSTRACT: :The focus in this tube is about-100 ji-across; the electron
optics are not described but a detailed drawing of the tube
is given, without dimensions.. The main design details of the
tube are stated to be given in Ref (1). The main attention is
given to the UM which consists of a trap cooled in liquid
P P,
nitrogen and filled-with 200 g of charcoal. Provision is made
to heat the charcoal'@o 1000C under vacuum to regenerate it.
The apparatus is fitted'with a fore-vacuum pump, but not with
a diffusion pump. It is stated that a vacuum better than
@Oard 1/2

0-0-7@A/,Y, 5
IS44
111T
, 11 p;"II ; i 1;
11 it
'WIN,
sit
41.4 pl -
W!
4 5
jig-
U 1 V3. va; .,v.
I A
;JV
loll" -
Ust lzJ
111,31 h
61 1
17
te

94 (7) 24 (2)-
wMbA st K t Ve Set lazarar, B. go, SOT/56-37-3-15/6i

TITLEt Diffraotion, of,. X-Raqs in Polyoryotalline Samples of Hydrogen
Isotopes
PERIODICALs Zhurnal sksperimoutalluoy i teor tichsakoy fiziki, 19591
Vol 379 Nr 3, (9) 678-60 (USSR)
ABSTRACTs The authors already showed (Ref 1) that the diffraoti
on pioture
of X-rays... on-pi)3,yorystalline samyles of byarogeup deutsrium@ and
their mixtures 'aspends on the isotope composition of thcsUpieo
in this 00IM40tion, the.authors believed.an investigation of
tritium (which is;-aimilAr to deuterium as regards weightp but to
hydrogen,*.with. respect to the e nergy spectrum - half--4ntogral spin
to be of interesto.In figure 1the experimentalarrangement, in
which thex-isy piotures of the solid samples of hydrogen
isotopes''Were rooordedt, are shown end discussed, Pigure '2 shows
the'tritium I-ray picture (copper lines were used as comparison
standards) and figure 3 ths X-4ay piotur*6 of D and H2, A
2
Oomparioon. of the interferenas patterns indicates the existence
Card 11 Of isotopio pol*qrphism. The differenos in the structure of
a
IN
V
-M

DiIffraction of X-R& SO -37-3-15/62
ya An Poly6z7oialllue Semplea of V/5 6
HydrogenJeotopes.
hydrogen and deuterium and the similarity of the structure
pf the
letter to that of Aritixv:@ -shows that the polymorphism in not due
to a difference in ilia energy. Spectra but to a differanoolin. the
atomic welibt....Thi ob.serrad differenceb in the structure of
hydrogen-i.sotopeo --"or* An'acoorlance with the bydrogen-denterium
state diagrim iiiiestigated in'. Iaferenas I. A table shows the .data
obtained: bone arning the strretural p&rhmeters of tbe hyaroom
isotopes. Tritium-and deuterium @ars ii tetrag=al lattice with
143 and a 3*3 and 3,35 1 radpootively, hydrogen has a
tetragonal lattioe,witil o/s.10.80- d a - 4.5 1 or a.hexag al
lattice,with */a *@- I M and 'a , 3-7al. The densities: at, 4.21; for
tetregonal byd r*og*A @aie 0*09 and for hexagonal hydrogen 0449,
for'dauterium 0,205 -and-fqi@ tritium 0.324 (f6raomparis*'
on'tho
data -obtained by - *,that axthors, are -als ogiven). FIVM - 6 -shown an
enlarged X-rvjpicturs of a Li@tuve ontroden and denteriun
(60 voI%-D2)j '+n which the lines of the solid solution of hydrogen
in deuterium, ave@clearly:disoerniblq. vie''results obtained are
discuneedo,ind the authors thank N. 1. Xassa1itin for the'
production of the oz7betat used. There are 6 figures, I tablev
Card 2 and 6 referenoea,,2 of whiah are Soviet.

66631
00 S/126/60/009/02/021/033
'
-
l
M
AUTHORS: k
Mikhaylov, I.F*
Kogan, V.S6 alh
a? N.A..
j
TITLE: The Reasons for.the Brittleness of Tungsten,'lAiinealed
in Vacuum
PERIODICAL: - Fizika metallov i metallovedeniye, 1960, Vol 9,.Nr 2,
pp 283 - 287 (USSR)
ABSTRACT: us.used in the experiment isshownAn
The apparat
,
Figure 1. A high vacuum was obtained by using low-
temperature methods. The specimen (in the form of a
wire) was.heated by passing an electric current through
it. Annealing wao'carr
i8d out for one hour at teWpera-
,
tures of 1 000 to 3 200 C...From 1 000 to 1 200- C a
surface film of oxide is formed and the mechanical
properties of annealed specimens in an org
nary.or in a.
of
cold"
C
vacuum are the name. Above 1 200 th oxide
,
film disappears#,- At.1 300 OC specimens annea in a
"cold" vacuum,are plastic and those in an ordinar-'
y vacuum.

e um-
ar brittle* The wire heated in a "cold" vacu :-'has a,
considerably lower elastic limit than the original"
specimen. The -specimens annealed in a "cold" vacu-uzl-

Cardl/2 0
retain,their,plasticity-up to 2 100 C. It is propos

68631
--S/126/60/009/02/021/013
The Reasons for of TungstleWIRRialed in Vacuum
that the reason.for the brittleness of samples annealed
in an-ordinary vacuum is the formation of a layer of
tungsten carbide on the surface. This is confirmed by
X-ray analysis.:-Removing thi layer ky etching restores
the-plastic properties. Abov: 2 100 C the change in
plastic properties is due to recrystallization. This has
been shown by X-ray analysis. Acknowledgments are
expressed to Professor Ye*S. Borovik for his criticism
and useful comments.
There are 2 figures and 10'references, 3 of which are
English, 1 German and 6 Soviet.
ASSOCIATION: Fiziko-tekhnicheskiy institut AN USSR (Physico-
technical Institute of the Ac.Se., Ukrainian SSR
SUBMITTED: July 71 1959 WV
Card 2/2
AW-LrM
E
. ON

4-., 10-
ol
cp so a
a 0 1.0
4

89199--- -
S/056/61/040/001/004/037
B102/B204
;410
AUTHOR3: Kog&nL-V. S..L L@xarsv#' Be Get Bulatova, Re F.
TITLE: Differences in the lattice "constants of neon isotopes
PERIODICAL: Zhurnal.skeparimentallnoy i teoreticheakoy fiziki, v. 40,
no$ I t 1961, 29-r3l
TEXTt The authors know of:cd3y.*6w single, case in which the attempt had been
made to find differences in the latUos parameters of elements heavier than
6
h9l1um,;.:,On Li @and LiTa difforenoe@of 090015 A was found to existj a
value which is near the limit of.measurin'g accuracy. 'Theoraticallyt the
differenoei of the lattice parameters of the isotopes of noble gases 'i.e.
the differences of the;molar.volumina in the solid phae e have repea tedly
been investigatedi for!neont one obtained the following at OOK:
AV/V 0.6%. An experim.ental.study was the purpose of the present paper.
By means of X-ray analysis # the structures of Ne2o (99% pure) and of Ne22
(98% pure) were'examined. The specimens freed from air and helium impuri-
ties" were obtained in-form of polyorystalline layers, viz., the neon
isotope waa'preoipitated from the gaseous phase 6nto a copper capillary
Card 1/4

9/056/61/040/001/004/037
Differences in the lattice
B102/B204
tube, whioh-was'looole-d from the.inside by means of liquid helium. The
experimental arrangement for the X-ray examination of such a specimen
d
escribed in Ref- 5- A typical X-ray diagr his
0 am.recorded by means of t
device, on which also the Cu. lines are visible, is shown in the figure
ThsI-ray diagrams were.pfiotometrited, the distances between the maxim iso
a f-
the interference lines wort measured with an accuracy of j0*03-.tO*05 mm.
The corrections for sample-thickness were.carried out according to
Kurdyumov. The results of the studies are ihown in the tablel the data of'
..the lattice parameters are accurate up to + 0-004 A- Both isotopes have
faoe-centered cubic latticeel for the light isotope, a - 4-471A 1 and for
the heavy onsp a w 4.455 As AV/V -.0 .1-+0.5)%. The line intensities found
in the X-ray diagrams deviated considerably from the calculated values.
Thus, in Cu - K,, and Fe - K radiations, the intensity of the (200) lines
compared with those of the '1111) lines were consider;bly lower than calou-
lated, the intensity of-.the (222) line of'the Fe - K.-radiation was higher.,
This is explained by,tho fact that the noon precipitated from the gaseous
phase upon@tho capillary tube has a texture, in which the [111] axis is
radially orientated toward the-oapillary tube. The intensity ratios of the
same interfer .ence lines I No 22 1 (No 20 is higher and grows more
hk1
Card :2/4

tic' 1/040/00/QP4/0@7@,:*.@;:@
!...BIOZ @2
fare
Dif noes
let
g 04
quickly with.1`4@dreasini
gle.@-than
e.xpected.'...-- By f a a would have been,
Oumm rY itlie id'that- h
d' r t e,AV/V_v
*I th -tAO6 eticail'reoult qo*
goo, _agreOment..
of'. sero 4ibiationo.-:@ By za -r@ng thq energy. diff erences.
r"gr-'ea-te-r-differences of the 'mo or vo Umas ,-o
a 4 V @,qf@
e- 180 OPe @oomp r6d, t6 LV isot opee are .asoribed to the. dif f ar'shoe in
-latticess. B, Ya.,Pines is
the binding:for@6*o Ithium
0:0 T h 0 to j,: a r a _@,j 8 r 0 f a r 6a a S.
.1 table and
Sure
j.:
I o' d and n-on"18,0-1
via ;-b oc"i'@.
-2 Soviie t-mb
3@_
ASSOCIATION.--,@_ Fiiikb_tOi _niohiskiY-i.'_ i,t;t-ik-d-mii,-ziailk-Ukrainaligv--BSR
kh not u a e
Ina titut a of: Phy6i'66, . and Technology of the Acadomy.@ of
k.' .4SR)_
.80 .1kra no
Utz:!..
AWU
UBMITTED July 6
Ne"
V
3/4--
7

1'0: Miko-tekbhichaskiyinatitut AN UkrainakoY SSR-
.(Noon-le*twe3)

KOGANt V.S.; IAZAREV' B.G,,; OMMOV, R.P,; ZHDANOV- G.S.
Neutron diffraction study of the Mstalline structure of solid
hydrogen andIdeuterium# Zbur, eksp. i-teor. fit. 40 no.4:1022-1026
Ap 161. (KIRA 14:7)
1. Fiziko-tekhnicheskiy institut AN Ukrainskoy SSR i
FizIko-khixiohe3kiy institut imeni L.Ya. Karpova.
(Neutrons-Diffriction) (Low temperature research)
(Hydrogen cx7sWs) (Deuterium Metals)

S/126/62/013/002/017/019
E039/EI35
AUTHORSi Vanyutinakiys.-B.M.
KO Kartmazov, AeNe v
'L'F-
And Yakimenko
trrat `Vhe formation@of textured layers of nitride on
chromiUm.obtainod by:.condensation in vacuum from
:,the vapour-phase.
PERIODICALv 1,Fizika, 'i962
meta1loV,i'm9tallovedeniy9# v*13, no-2O.
310 31i
TEXT3 @'It is shown that the akin formed on the surface of
chromium when Iheated In.air or oxygen consists of two layers 1.
an external layer'of..rhomble Cr203 and an internal layer of
hexagonal Cr2N- 'This was discovored.by,means of X-ray diffraction
measuremertfs. The,structure of.t.he skin formed on. chromium when
heated in 'air and to.1300 OC was examined @for two
-in,nitrogeh u
11 P
different samploss'.:. one was chromi um cast and rolled in vacuu
a from
and the othee 44ample of.:ahromium obtained by condensatio
the vapour phand.:':This'-condenzation was'carried out,at a
pressure of lo-3.mm HS on to a molybdenum plate over a period 'of
'Card 1/2

S/126/62/0113/002/018/019
E039/Z133
AUTHORSO F@ovtuns @@S a Fs;j and Kogant VeLt
TITLE: Texture and! its. connection with the change in
dimensions of uranium samples with cyclic heat
treatment
PERIODICALs. Fizika@m'eiallbv imetall'ovedeniye, V-13, noo'2t 19629
316-317-
TEM 'The,change-in dimensions after heat cycling in
uranium is caused either by aphase*'transformation or by its
anizotropic
expansion which'results n
coefficient:of,thermal i

irrevers
n
a
ible change.-of.dimensions. It'h&3 been shown that
this occurs only if.theimetal has.a*:.mArked texture-and that if-
a sample-in ,rained,to &.temperature in the p phase range and.@
then chille d to room temperature the texture is almost
completely. the, coefficient of growth on,heat
destroyed, and@
cycling is .
greatly.reduced, Howevert "it has-been subsequently
A-, shown that uranium ca.% maintain, &,.,marked texture after heat
i cycling and that the value- and even the sign of the change in,
dimensions of a sample depends onothe condition of the metals
Card 1/2

B/o5y62/042/003/049/049

8108 102
B

AUTHORSi. Kogan#:VD-S. Khotkevich #:".V'O I*'

TITLE: -in the,lattic4
Temperatur6ldependenoe@of the isotopic effect
'constant-'of Li

t_v-@42j.
PERIODICALs ''.Zhurnat' kipstiMentallnoy i',teoretio.hookoy fiziki
no. 3oA9620:@916@-917
TEXT: Data-from Refe (see@,below) an the iobtopic-effect in the
magnitude of the Li lattice constant refer'.to,a temperature of 3000K. At
this, temperatur j the lattice constant of'1he light isotope
6

3 - 510
(a(Li greater than that of th
7 @,t 0-0009 1 by 0 0015 e
.
7'
heavy, isotope. (i(LV 3.5092 1, 0.0004, 1) The relative. difference,in
the volumes &V/V is,ab6ut 6#1%.7 It. ha be
a en shown:for Ni isotopes that
i thin difference between.-the lattice@const"t of-the light isotope and that
of the heavy one becomes less,'.at higber'temperaturei and may, . even turn
'
zero and reverse. its eig
n.@_ ton equentiy# the"inotopic effect in Li should
be more distinct at low temperatures* In'order to verify this the authors
Card,1/3

AU@Fqti

5/056 62/042/006/015/041
B104 B102
AUTHORS: Kogan, V, S,t Bulatoz,-A. S.
TITLE: The temperature dependence of the isotopic effect in nickel
lattice
PERIODICAL: Zhurnal skeperimentallnoy i toorotiaheakoy fiziki, v. 42p
no. 6, 1962,, 1499-1501
64 f
TMT: The isotopic effect on X158,and Ni was investigated by means o
x-ray analysis at nitrogen temperature and room temperature. At nitrogen
temperature the lattice parameter of the.lighter isotope is larger than
that of the heavier (A a - 0-0005 ! 0.0002 cf). At ioom temperature the
isotopic effect ppproa:c es zero but has a negative sign
(A a - -0-0002 + 0-00W Z, The diminution of the isotopic effect can be'
explained by re7ference to the Debye theory of a solid body, but inversion
of the isotopic affect does not follow from this theory. A comparison of
the data on the isotopic effect for nickel with earlier data for other
,isotopes shows that in lattices with similar binding forces the relative
change in the molar volume-in.creases almost linearly with AM/M. For
Card 1/2

KOGAN v a
nnt-KA?i KHOTIMICHP V# L
Temperature dopendenee.*of the lootopie effect in the magni:Wde
of the parameter of,.the.lithi= Uttlae. Zhur.eksp.i teor.fis.
42 no-3016417 W 1620 (MnA 15j4):
1. Fiziko-takhaiobaskiy inatitut AN Ukraiukoy SSR.
(.Mthium@-Isotopes) (Lattice theory)

Y. 12581-Q,' * EPR/or(o)/Up(q)/ZVT(m)/EWP(B)/BDS AFftC/ASD O&V
'-pa'A VAV/JD/W9/J0/K/MLK(a)@_-'
ACCP.SSION.NRI 'A?3007610' -9/-0266/63/000/010/00"72 0-03
AUTHORt MALZU-tin-alti an Y 8,1 Ls;ar,sv@ Bo Go;
r!!-vZa, Two So
480' No. 154752
TITLEs TLnolatiBA Xjj&ite. Class
lid
at* tovarny*kh,anako - 72
SOURCE 1@1- Byuls ixobr vt' no. 100 19639
TOPIC TACSi . graphit@.tinni'gj graphiti tinplatLng, vacuum tinninis'
a
vacuum tinplatingg carbide forming additives# tin coat
AP
ABSTRACT: A pa t an t has -been, Is' 'fr a method of tinning r' h
sued
ite parts by immersing. them in moltal tinip To ob.tain a high
quality tin coat, the tinning carried ou$: in vacuum@lt
1OOOC with a maximum 'of .0,801% :7 molybdenum," titanium'J@,
tit.
forming metals added to the tin a
A or o th.e
ASSOCIATI(I I none, j
0
8UBMITTEDt 21Jun62 DATE ACQt 140*03 ZNCLt' 0
SUB CODE: ML 000i., OTHER: q00
No nEF SM

7.1
44a
/053,/62/078/004/002/004
_B164/B102
d- 1710rO
AViHOR's Koganp Va, So
TITLEs IsotOPic-Offeato on@ths structural properties of solids
PERIOD
ICALt Uspekhi fizioheskikh,nauki v. 78# *no- 4s 1962p 579 617
'ji
TEM The artio t
10 reviews the results Of,investigations during 4e lost'_@
a . 7
30 years relating to isotopic effects in 'eli4s. The individual hapters
deal with volume, changes of unit oelle in chemical compounds when light
isotopes are substituted.by heavier oneel detprmination of the tei4perature;b'.
dependence of isotopic effoots:from the lattice parameters and the variar@
tion of the phaae-transformation temperature *n deuterized compouode;
aryostat types for studying the..iootopio qtrubture by x-ray and n4utron
diffraction at low temperaturesl4sotope morphotropy of hydrogen 4aotopesj@,
,-isotopes of
isotopic effects.-on thilattice parameters of'. rare ga@ee (He'i-
Ne) and metals (Lij.Ni) and their temperature' dep endonce I experi4ents for.
the theoretical treatment of isotopic effects. in solidel magnitud4 and
sign ofeffoote in crystals with various bind*ng foroeel mixed crystals Of.,-,
f
hydrogen isotopeal constitution diagrams for fhe solid-liquid phaqe o
systems with hydrogen isotopes. There are 17;figuree, 4 tables, "d 119
Card 1/2

I.i

I

tn the
Ek

A@
4-
n.
r
,..:ACCESSION NR: JW4012535
-procedu
mc@ified
re. was X MY photographs were taken with the
by
drogen isbtopes.qondensed in one@cqse
in*de a beryllium tube and
:@.in. the :other on @Qe surface Of-:a-cWpor rod.-
Comparison of the
-that the latter 1pecimeLfis have a texture which is,
photogra
ph$ showq
4
@'not the same I
for.protium layers*asifor deuterium. Proliminary,data.
,were also obtainq"d for tritium.-:,A%re-evaluation of the previous
.Structure data.in light of the' existence.of this texture leads to
:the conclusion that both isotopes have a hexagonal structure with
7.
-somewhat different axial-ratios:cA. For protium-the copper-radia-
.tio.n lines are (100)* (002),-1and (101) with-c- 6.6 A and a - 3.78
(002);
(c/a -_ 1.63) 0 no corresponding,lines--for deuterium are (100Y,
and- (101) -with ak- 3.S4 X 'and c - S1,91 X '(c/a - 1.67.). "The autho a
express their grqk arev forl:
.titude,to Academician AN UkrSSR B. G. Laz
.a discussion of the results. -.Orig: .,@art.--has: 3 figures.
ASSOCIATION: 'Fizilc6-tokhnic'haskiy~inatitut AN UkrSSR (Physicotech-.1
.nical-institutef:@N UkrSSR)
Card

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KOGANO V.S.; OMAROVO T.G.
.......... wl-@@
Isotopic effect in the mapituds of the molar volumso of ionic
crystalss Zhurs eks@s :L %oar, fize 47 noo3t789-794 3 164.
(HIRk 1733-1)

4@g
MEW

OR
"ie 2." tl@lvlr,
j7@ F a
NOR, EPA
JIM, M I . I
tr K
MEN
I
I t1i;

BULATOVAt H.F.I.ISA
Separation in the byetafto Hj,;.HD8and 1, - HD in the solid
phauee,Zhurs@eknp I toorf 4 noslWD-132 A '165s
(MIRA 1814)

L 235%@7' 2JEW(I)IT.
At'C@, 6005609 SOURCE CODE.,
AUTHOR: Kogan, V. S.; Omar", T. G.
ORG: none
1310087/0089 T
TITLE: Vacuum and low-temperature x-ray camerl
SOURCE, AN AzerbSSR. Izvestlya. Serlya fiziko-takhnicheskikh I matematicheakikh nauk,
no. 3, 1965, 87-89
TOPIC TAGS: x rvj diffraction camera, thermal expansion, Ionic crystal
ABSTRACT: The camera was developed for taking x-ray pictures of easily oxidizable low
melting samples. 'In contrast to other such cameras now In existence, it combines the
two operations of taking the pictures in a vacuum and in nitrogen vapor at a tempera-
ture of 780K. Provision is made for setting up two samples simultaneously, and Moviq
Ithem successively into the path of -the beam. Each sample is photographed on a sepa-
irate frame without reloading. A detailed diagram of the camera is given and its ope-
ration is described. The camera was used for determining the average coefficient of
thermal expansion in the range of 78-3000K, and also for studying the isotope affect
in the values of the lattice parameters of ionic crystals at 780 and 3000K. In the
first case, the same sample at two different temperatures (7610 and 30000 was photo-
graphed on two film frames. In the-second case, samples differing in isotopic compo-
Card 1/2

L 23592-66
ACC NRi A
sition were photographed at the given temperaturo (760 or 30013K). Photographing on
the same film of two such x-ray diffraction pattems of samples with a small differenc
in lattice parameters permits the determination of this difference with a high degree
of precision. Origs arts has: 2 figures.
SUB CODE- lq,20/ SUBM DATE: 12Jan6S/ ORIG REF: 003/ OTH REF: 000

ACC NRj AT6014753
SOURCE CODE: UR/0000/63/000/000/0076/0082
AUTHORS: Kofign, V-,S,A,Xrivko,,At I.; Lazarev. B.,G*t Lazareva, L, Sol Hatfia
A.; 09 ?MF6fflWP of No,
ORGs none
TITIEt The phase diagram of the niobium-tin "atom
SOURCE: Sov2shftakyq R2 dallgyedeniyu i P-etallofizike avorkhprovodnikov. list,.
1964. Metallovedeniye i metal-lofizika sverkhprovodnikov (Metallography and phygics'of
metals in superconductors); trudy soveahchaniya. Moscow, Izd-vo Nauka, 1965, 76-M
IOPIC TAGS:- superconduotivityv superconducting anoy, tin base alloy, niobium anorp
x ray ana3,voisp spectrographio analysis, critical magnetic field, intermetallio
cqmpound,, alloy phase diagram
ABPTRACT: This paper is a continuation of an earlier work by V. So Kogan, A. 16
13
K44ko, B. Go, Lazarev, L. So Lazareva, A. A. Matsakova, and 0. No Ovcharenko (FMK,
. 143) in which it was found@that specimeds produced by holding niobiumin
1963, 15
V
molten tin th@temperatures above and below 850C diffored in their superconducting
erties.@ 'e superconductivity transition temperature for specimens produced at
Pr
99OG and 12500 is 186OK and 18.1K. respectively (see Fig. 1). For diffukon layers
formed at below 8500, the superconductivity @ransition temperature is reduced; the
lower T the lover theltemperature of formation of the layer. For specimens
k
cqr@ 113
P , ,
;X -V -
WORM

L 38546-66
ACC N14 AT6034753
@20 @ I" I h
Fig. 1. Critical magnetio field an a function
Hk
of temperature for diffusion layers
of 11b
3Sn obtained at temperatures of
L
IS-
800-12500
If 17 to
obtained at above 8500, Tk apses with the known value for Nb 0
3@n. X-ray studies
confirmed that only the compound Nb3Sn is formed whenspecimenn are prepared at over
For temperatures below 8500' the diffraction pattern shows that Nb2Sn3 is
150C.
formed." It was concluded.that in speelmens prepared at temperatures below 830C
there is present,a very thin interlayer beneath the now phase. The formula NbSn is
ascribed to the now compound. The superconductivity transition temperature of ihe
NbSn,was found to be 297K* In other papers'the now compound has been given the
Card 2/3
@Hfl Mi

38546m66
ACC NRt AT6014753
formula NWn2 or Nb2Sn,. The authors thank L, 11, Mosova for conducting the quali-
tative spectral analysis. Orig. art, hast 5 graphs# I table, and 1 photograph#
SUB GODEs 119,20/ -SUBH DATEs. 23DO065/ ORIG REF3 002/ OTH REF: 018
Card 3131,d-
11"'M�R;

T..V032-4A F.W .4W4t,)&= IJP(c) JD/JQ
ACM7@ Ap 18939 SOURCE CODE1 UR/01.26/66/021/006/0828/0832
AUTHOR: Ko&an, V.," @azarev, B. G Hataskova, A. A.I,Ovcharenko. 0. N."
-YakimenkUl Los Ce
ORG: Physicotechnical Institute,AN UkrSSR (FiZiko-tekhnicheakiy institut AN UkrS
AR)
,,ATITLE: The width of the homogeneity region of intermetallic phases in the Nb-Sn and@
,1V7Ga syptems
SOURCE: Fizika metallov i metallovedeniye, v. 21, no. 6, 1966, 828-832
TOPIC TAGS; superconducting compound, niobium alloy, binary alloy, tin containing
alloy, vanadium alloy, gallium containing alloy, intermetallic compound, compound
homogeneity region
ABSTRACT: Experiments have be,4made to determine the width of the homogeneity
region of intermetallic phases ormed in the Nb-Sn and V-Ga systems, i.e.s:systems
whose components have wiTe-f-Faifferentmelting temperatures. Nb'3Sn and V3Ga
intermetallic compounds were obtained by diffusion of Nb :n by hblding an Nb specimen
for several ho.urs in molten tin at,1000C,J;nd V3Ga by ho? ing a vanadium specimen
wetted with gallium in a vacuum at about OOC.' X-ray diffraction patterns of the
diffusion layer on vanadium showed that the surface layer contacting gallium gnd the
inner layer adjacent to vanadium had equal lattice parameters, 4,819 A 0.002 A# The
temperature of transition to 1he superconductivity state of V3Ga was found to be
:Card -1/2 UDC:-- 548.53

L 32037-66
ACC NR1 AP6018939
14.44K with@a transition zone width of 0.2K. These data confirmed that the diffustor
-zone consisted only of V Similar results
Ga compound of stoichipmetric composition.
were obtained for Nb39n compound. The layels adjacent to Sn and Nb had the same
lattice parameters, equal to.5.288 A 0.001 A, which showed that the homogeneity
region of Nb3Sn compound is also very narrow. A wide homogeneity region. reported in
some earlier works for the refractory metal-rich phases in alloys whose components
have widely different melting temperatures is presumably a result of teste'd alloys
being in nonequilibrium-state owing to a low diffusion rate of these phasess Origo
art. has: 3 figures.
AMSI
SUB CODE: ll/ SUBM DATE-.' 26jul6S/ -ORIG REN
004/ OTH REF: 005/ .ATD.PRESS
7,
Cgrd 2/2

_AP6037060
-ACC NRi SOURCE-CODES- UR/0056 66/051/003/1-328/13
AUTHOR: -Kogan, V. S.L Lazarevo Bo Go; Yakimenkot L. F.
ORG: Physicotechnical Institute# AcAdemy of Sciences UkrSSR (Fiziko-takhnichookiy
Institut Akademii nauk UkrSSR)'
TITLE: X-ray diffraction analysis of the structure of niobium4ase superconducting
alloys
SOURCE: Zhurnal eksperimentallney i teoratichas koy fixiki, v.'5i, no. 3, 19666
1328-1331
-TOPIC TAGS: niobium bass alloy, zirconium containing alloy, titanium containing
alloy, superconducting alloy, alloy structure
ABSTRACT: A series of niobium-zirconium-titanium alloys containing 5-50% zirconium
and 10-20% titanium has been investigated. It was found that all the as-Ca8t speci-wl
mens had the structure of a high-temperature cubic 0-phase. Annealing of-specimens
containing up to 10% zirconium at.temperatures up to 600C did not cause.structural
changes, which indicated that the 0;phAse was in equilibrium. Annealing of the alloym
containing 20% zirconium at 550"60. Cidused a decomposition of the 0-phase. In
alloys containing 30% zirconium, the decomposition began at 450C, and annealing at
..8- and a-phases. Origo
560C produced an equilibrium structure consisting of' art. haal
4 figures and 1 table. ETD)
SUB CODE; ll/ SUBM DATE: O8j6n66/ ORIG REFt 001/ OTH REFt 003/ ATD PRESSs 5109
Card
F M
MMIK111-

66f- 01-2F,
ACC NRs AT700h2O9- SOURCE CODES UR)565@) OO0[dFX)f0l21T
AUTHORSt Koganj.V. S*- Vanyutinskiyj B, Mij Lazarev) B. 06
ORGa none
,tTITLE: Studying phase diagrams.with the use of diffusion layers
@ISOURGE-. -AN SSSR, Institut motalurgii. Eksperimentalinaya tekhniks, i matody,
vysokotemperaturriykh izmereniy (Experimental techniques and methods of high temper-
ature measurement),* Moscow, lzd.;vo Naukag 1966j 121-127
TOPIC TAGS: metal, phase eyetemp metal vapor deposition., matallographic examination,
nickelp chromiums.molybdenump niobiump'tinp ironp tantalum
ABSTRACT-. The obtaining of metal phase diagrams by a multilayer tecimique is
described* The technique., an extension of the work of L. S. Palatnik,, V. H. Kosevicht
and L. v. Tyrina (m,, 1961 11., 229),.consists of condensing an appropriate metallic.
vapor mixture and 'of subee;uently preparing a thin polished section from the.
condensate, This technique was applied to the btudy of the phase diagram or the -
following systems z'_ Cr-Hi., Nb-Sn. Fe-Tas' and M;o4r-Hi* The experimental resultag
shown graphically (sea Fig. 1),, were published earlier in three communications by
B. H. Vasyutinakiy-and Ve S,, Kogan (Fm, 196o, 9, 564). In addition, x-ray powder
pictures were takep and the m1wohardness of the specimens was determined. The
results are shown graphically. It in concluded that 'the condensation-diffusion War,
Card @J2.

ACC NR: MR&269,
Fig. 1. Microbardn9ps
C'I 404
a curves (a) and
composition of the
-solid function b),
1
01,the system Mo-Or-Nif
as A function of tbs--@:
44 distance from the
Sze b surface layw,of a
ape cimen,
42'
200
or Nil
do /a P# J20 Oo off 80 W 200 UO #00
Distanc* fron'xurfacep.micig"
technique is not, capable of yielding:tWoomplate phas6 diagram for the system and
that it requires, for successful application, some preliminary knowledge about tha
system. -The ffb-Sn'syatem w" studied by V, 3.1ogang-Be Go Lasare-ro L, So Less O@Mlx-
A. L Krivkol and A* A. Mats.akovae. Or4,.arte bast graphs.
SUB CODEt n/ SM DATJh+ `none/ ORM REFt 012/ OTH REFt 006
Card 2/2

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