SCIENTIFIC ABSTRACT PROKOFYEVA-BELGOVSKAYA, A.A. - PROKOPALO, O.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001343210019-7
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: July 13, 2001
• Sequence Number: 19
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

PROKOFIYEVA-BELIGOVSKAYA, A.A.1 SWUNAg Z.B.
Microscopic structure of actinomycetic colonies. AotirAmyosm grimmus,
Mikrobiologiia 30 no-5:863-8" S-0 161. (KM 14:12)
L Institut, biofiziki AN SSSR. -
I (ACTINOMYCES G=EUS)

PRO-KOPYL-YA-BELIGOVSKAYA, A.A.
Functions of the telomeric part of chromosomes in embryonic mitoses.
Dokl.AN SSSR 138 no.3:688.-691 l1q 161. (MUA 140)
1. Institut biologke~koy fiziki AN SSSF,- Predstayleno akademikom
LIC.Shmalfgauzenom.
(EMBRYOLOGY -Fl.,SHES) (CHROMOSOMES)
(X RAYS-PHYSIOLOGICAL EMOT)

PROKOFOYEVA-BELIGOVSKAYA, A. (Moskva)
Organization and functioning of a chromosome. Vest.AWI S.S.S.R.
17 no.12.-60-62 162. (CHROIAOSbMEZ,) (MIRA 16:4)

h2694
3/747/62/000/00()/'015/025
D296/D307
IJO;T110i'J Romashov, 1). D., Belyayeva, V. N., Golovinskaya, K.
-and Prokoflyeva-Bellgovskaya, A. A.
TITLE: Radiation injuries in fish
J
U R
0 Radiatsionnaya genetika; sbornik rabot. Otd. biol. nau-k
AN SjjR. fioscow, Izd-vo AX SSSR, 1962, 247-266
'11ne problem is o:* economic interest in connection with ra-
11_;Q:_LC'-,iVe of natural waters. In young carp stages of
-L'diation Lj-* c,~Mess similar to thoue known. in mammals can be obser-
ved. -Ls a whole, hoviever, fish can tolera 'te much higher doses of
rudiaT.ion and the rAniMUN1 lethal dose may be ) 2000 r. Doses of
~00 und particularly of 600 or 1 000 r delay -the development 6f the
~~(,,x ~.;lundu without irapairini, -the viability of young fi6h. Up -to
3 t-.P
.dooes of 2,000 - 6,000 r, the degree of injury is proportional to
uhe dose, but at much higher doses the nucleus of the sperriatozoon
becomes-inactive and the injuries are less marked ("Hertwig ef-
fect"). Very high doses (100,000 r and more) lead to the develop-
Card '1/3

3/747/62/000/000/015/025
Radiation injuries in fish D2,96/D307
ment of numurous decrenerated haploid individuals possessing only
the maternal set of chromosomes. In addition, however, a few normal-
ly --ro,.,.,ing-g individLWlS can be 1"OUnd; these are "diploid gyno-enetic"
indivIdiuals, i. c. owin- to a further division thel, have two sets
of cl~romosoraes which are both of maternal origin. The authors de-
vised _~ tecil-nique of increasing the )roportion of these diploid
tjlyno-,:~netic indiv.-*LQUa'lS UO -to 15 - 60c'0 of the spa%m by a method
U (D
co.'1~3is-Ling' of exposure to "col-- shock". Here the fertilized spawn
is kepi 3 hours at a tubmperalUre between 1 and 30C, beginning pre-
cisely 10 minutes after fertilization. The damage caused in the
chromosomes by radiation can oe followed up through a number of
cell divisions in the course of c-dbryogenesis, to the larval stage
or untii tfie acre of 25 days. In young fish embrjos the dicentrical
OfIlroMosomea and cliromatias are unstable and serve as a source of
intraceiLA-ar fra-mients. ~Ohe cycle of chromosome- and chromatid-
brid,-eo becomes relativc-ly stable only in the later gastrula stage.
There are 4 fit,'=es and ~ tables.
Card 2/3

8/747/62/000/000/0-15/025
11,adiat."Lorl injUries in JAoli
T D296/D307
A625001ATiOli: Inutitut bLolo,licheskoy fiziki AN S~;SR (Institute of
0
Biolol-4cal Physics, AS USSR) and Institut prudovogo
0~
rybnogo khozyaystva, RSPSR, Moskva (Institute of
Freshwater Fisheries, RSFSR, Moscow)
Card 3/3

N)
Wmt of F.4daz 11adfsti- the Nueltut in Cafluntl of Fjnf)ryomfc Ifornan COW
A. A. Prokodi-IkILV"knz
Fibroblast culturcs of humAn embryonic material. 42~,13 hr AfIcr the start of the 4xg rtaimgr. scre irrzd~ved
with does of 5-50 r y-rays and fixtd after 24-36 hr. The frtqutnq of chromovyrne. abcm0ool In Ar,A-1clv,-ha,e
and in mclaphaic of the firit divisian after Irradiation was acomd. After dcvi of 3. 10. 25 -104 30 r the frequency
vf chrommome abnormalitici (prcdominantly chromatid btidire% and single and dcuble fragments) incre-aitt! tram
the Control vatim er 1-15 ". n, 1.6, 2.11. 6 6 and 14 V relrieClively. in the dose rang.- W50 r; 95% of chrnmowrrul
RbootmAfilicl ate ' itigIc-bit I)tc-wks. And ejeh injilreti ntKIcul cantAfril as A Tuft one aNtration. Thu.. It,e fmi-cy
of damaged nucIc;jr ij 6.25 *11 and It very 3imiltr to the Agurr of 0.24*:"f found pmVlowly.rut The tITM of X-Ixys
on human embryonic 11brubiwits.
Some preliminary data utm obtained for acute and for chronic Irradiation of human embryonic cells.
&flbf MIA. JW.-
roport jymnanted at t2tv 2V4 Intl. COOS"as of Radlatim RevoWNh,
L1x"9atO/TCWkvh1--. Gt,arit. 5-11 Ava 1962

GLEMBOTSKIY, Ya.L - PROKOFIYEVA-BELIGOVSKAYA, A.A.; SHAMINA, Z.B.;
" - V~'
KVOSTOVA, V. ; ~V~~. NEVZPOGINA, L.V.
.4 1 (; 'D,
Effect of space flight factorn on the heredity and develop-
ment in actinomycetes and higher plants. Probl.kosm.biol.
1:236-21+7 162. (MIRA 15:12)
(SPACE FLIGHT-PIMIOLOGICAL EFFECT)

S/1865/62/0N/000/016/042
of space flight D405/D301
'"o such effects were observed in.the seeds of Allium fistulosum and
s
.~Tigella dama cena (T.,rinter onion and ran-Lmculus). Tbus, the genetic
ef f ect - was most marked in the. case of. *heat,. which has numerous long
j
chromosomes. An analysis of the types of chromosome abberation also
'I,shoT,-,7s that the chromosomes are df-fected.by the flight conditions. 1;
t
nowever not clear precisely xvhich.~ factors act on the chromosomes.~'
regard to physiological ef f ects the germinating ability and
growth energy of the seeds of Allium.and Nigella were stimulated;
..:,.-this applies in particular to the radiation resistant species (Nig-;
ella) An incre ase in mitotic ac t1vity (as determined by the perm
-centagd of'dividing c*ells) was observed only in the case of the pea
Spartanets. Two strains- of the s-
pores of Actinomyces eryth-
-reus reacted differently froufthe"spAce-flight conditions. The via-
bility -of the . strain,,with large nucleic'elements and resistant to.
.~_jul av o r s
_tr . i let radiatiofi inc ea ed, v7h':~
2 , e.eas:t e strain sensitive to
ult a,~iolet radiation exhibited a:sh, - d ' viabilit '. The via-~.
r arp rop in
y
:.-bJ'IJty of tM spores of iietinomyces 'aureofaciens decreased sharply.
arowth of themycelium of both: vtrains-: of ~:Act. erythreus was-
timulated. There are 11 figures.
Card 2 2

-PROKOFIYEVA-BELIGOVSKAYL, A.A.; KAPITONOVA, O.N.; SHAMINA, ZA
Cytological study of the changes in Actinomyces cells caused by
radiation. TSitologiia 4 no.1:18.-26 Ja-F 162. MRA -15:4)
(RADIATION-PHYSIOLOGICAL EFFECT) (ACTINOMYCES) '

PROKOPYLTA-BELIGMEAYAJ A.A.; CIMIA14 CHZIIUI;-KIIE [Chang Chung-hol
Electron microscope analysis of zhe amphinucleus. Biofizika,
7 no.2:165-170162. 0,-'Ltk 16:8)
1. Institut biolo"icheskoy fiziki AN SSSR . 14oskva.
(CELL I-ITJGLEI) (ELECTRON MICROSCOPY)

PROKOFIYEVA-BEI,'GOVSKAYA, Aleksandranekseyeyna; DUBININ, N.P.,
,-, a~.- F~j-.-;- IG.NATIYEVA,-G.M.) red.izd-,ra; F.RUSAYvGVA, T.A.,
tekhn. red.
(Structure and development of actinomycetes] Stroenie i
razvitie aktinomitsetov. Moskvail Izd-vo AN SSSR, 1963. 275 P.
(MIRA 16:10)
1. Ghlen-kori-espondent AN 3,13SR (for Dubinin).
(Actinomyces)

PROKOT-fEVA-BELGOVSKAYA, A. A.,
"Ifeterocycl.icity of tile ,")yntem of Cell NucleUG-"
report submitted for the llth Intl. Congress of Genetics, The flague, Netherlands,
2-10 Sep 63

PROKOFIYLVA-EELIGOVSKAYA, A.A.~
Human chromosomes in the normal state. Mitologila no*29
5-23 ja-F163. UMU l6t6)
1. laboratoriya kariologii Instituta radiatsionnoy i fiziko-
khimicheskoy biologii AN SSSR, Moskva..
(CHROMOSOMS)

r; raa ~---x
f' MO:; "ITIO'L'.:
;4 I-a at,, I -hf- 31-y i

PROKOFIYEVA-BELIGOVSKAYA, A.A.,_kand.biolog.nauk; BOGDANOVY iu.F.
1;63.
Organization of chromosomes. Zhur.VKHO .8 no.1:33-.46
(MIRA 16-4)
(Chromosomes)

PROKOFIYEVA-BELIGOVSKAYA A.A.; GONiKAYA, L.F.; DUBINIDIA, L.G.; YATROVPA, G.V.
RarlIation i-iury r,~ chromosoves in the culturc- of e--b:7:rcn,-;c
fibroblasts of man. Rad'Lobiologiia 4 no.5:70,0714 164.
(MT A
-4p 18:4)
1. Institut biologicheskay fiziki All SSSR, Moskva.

A.A.; GINDILIS, V.14.
~Zvl
Tden L, 47~ - 5L t";nI
n,,.2z--,8F-20(.j Mr--Ap 165.
ic.-c-Chemical Biolcgy,
InstItUtH of'Radlatir-n and Phy9
of ZciemeB ,,f the U.S.S.R.;, K-3c'Wo

PROKOFIlEVA-BFT,'C,CI/SKAYA, A,A,i SIX-,ZINGER, SJ.
DNA roplication In h~)Mologolla hilman chromanarf)-. PoVI. AN f3r3ft
162 no.3:081-681, MY 165. (141PA 18:5)
1. Institut radiatsionnoy i khimicheskoy blologil AN SSSR.
Submitted December 16, 1964.

WS, Ya.Ya.; IC-DVEDEV, N.N.1 PROKOFIYEVA-BELGCVSKAYA, A.A.;
LYUBIMOVA-LEPINA, V.-P.- ' '-
In memory of Tania Karlovich Lepin, 1895-1964, Biul. VDIP.
Otd. biol. 70 no.2:153-155 Mr-Ap 165.
0-11RA 18: 5)

SLEZINGER, S.I.; PROKOFIYEVA-BELIGOVSKAYA, A.A.
Succession of D-U replication in plots of large chromosomes in
I
man. Dokl. All SSSR 101 no.2:459-462 Mr 165.
(MIRA 18%4)
1. Institut radiatsionnoy i fiziko-khimicheskoy biologii AN SSSR.
Submitted December 16, 1964.

YEPIFANOVA, OlIga Igorevna;_EROKOF'YEVA-BELIGOVSKAYA,,A.A.,
otv. red.; ICNATIYEVA., . .1 red.
[Hormones and cell reproduction) Gormony i razmnozhanie
kletok. Moskva, Nauka, 1965. 240 p. (MIRA 1811l)

L 143o-,66 VWT(ift) DIAAP~
1 5/163/004/;1001/1002
:ACCESSIOX.NR: AP5020638
.AUTHOR: -Pto
~ovqka a A A Pgpko Q
'A
-37
SOM4
1TITLE: Differential radiation in*ury of parent sets of chromo
~SOURCE: AN SSSR. Dokladyj v. 163, no- 4o 1965, 1001.-1O02# and
!insert facing p. 1002
ITOPIC TAGS: experiment animal, radiation biologic effect.. animal
!genetics
-'ABSTRACT: Parent sets of chromosomes were investigated in salmon
-1 L.) and groundling ( Isalir fertilized ova
dl:f er t _pus foosilis
;~AMofs~~
7tages of cleavage td dbtdrrqine Irad sensitivity
!differences, The groundling fertilized ova were irradiated with a
11000 r dose
1 (165 kv,, 15 mas focal length 20 on, 485 r/min) in the
'th' d stage of cleavages and the salmon fertilized ova were irradiated
!with an 800 r.dose in the fourth stage of cleavage. The irradiated
embryos ware fixed in the middle and late blaistula stages and also
the gastrula stage. Chromosome injuries were determined in prepara-
C.,tf 1/3

L1430-66 ---
!ACOESSION NR: AP5020838
'tions of crushed stained embryos, In earlier riorphologioal studies
of salmon and groundling blastomeress, the dual structure of the
nucleus observed in the interphase was found to correspond in the
metaphase to two chromosome complexes which remained separate in all
.developmental stages. In the present study, only one of the two
~chromosome complexes forming the blastomere nucleus in an irradiated
'embryo was damaged. In some embryos, the maternal complex with Its I
:loosely distributed chromosomes was damaged, and in other embry-Os the
paternal complex with its closely arranged chromosomes was found
damaged. These differential radiation injUrie!3 of the parental set
of chromosomes were observed in the metaphase ;3tage as-vrell as the
anaphase-telophase stages. The effects of the initial chromosome
breakss usually of the chromosome and chromated bridges in the
f bridge-breakage-efusion cycles were carried through to the blastula
stage several cell generations after irradiation. Howevert the
presence of certain type's of fragments indicates that some chromosome
aberrations are the result of' breaks occurring several generations
after irradiation. Radiation injury differences of parental
chromosome complexes appear dependent,on the developmental stage at
-io moment of irradiation#~ Orig. artihas: 1-table,
Card 21

KAPITGUOVA, O.N.; PROKOFIYVI,-',-E~-LIGO,~~~,i:AYA, A.A.
Cytologica? characterisiics of the development of three strains of
ActinomyceL streptoraycini Kras. on various medlum5. Antibiotiki 8
no.12:1074-1080 D '63. (MIRA 17:10)
1. Vpesoyuzny-y nauchno-issiedovateliskiy institut antibiotikov.

PROKOFIYEVA-BELIGOVSYJiYA, A.A., doktor biolog. nauk
Chromosomes and the organism. Priroda 54 no.5:20-27 '65.
(HlPdi 18: 5)

.PROKOFOYEVA-KORCHAGINA, V.P.
Embryologic stud7 of yellow acacia. Biul. MOIP. Otd, biol. 59
n0-3:69-78 Vq-Je '54. (RUA 7:7)
(Botww--Zmbryologv)

GODUNOV., S.F., prof.; PROKOFIYEVA-M,IKHA,YLOVSKAYA, L.E.
OSHEROVICH,' V.~-., inih.1 .1 - - ,_dotsent [deceased];
Some problems of the biomechanics and treatment of foot defdrmities.
Ortop., travm. i protez. 25 no.6:36-42 Je 164.
(MIRA 18:3)
1. Iz Leningradskogo instituta protezirovaniya (dir. - dotsent 14.V.
Strukov). Adres avtorov: Leningrad, prospekt Karla Marksa, d.9/12,
Leningradskiy nauchno-issledovatellskiy institut protezirovaniya.

PRCK(YLIVIIKO, LA K
Ukr air.) all. D57f;hC-1,2gl'-~ a I - ~1,1!
My--Je 10'5.

7--RCIrIOTLr,rTE',~,',KO, L. I%
Prokol.tyenko, L. 11.
"Aspects of the mastery of gram-iat-Acal concepts by students in the
fifth class." Min EducatLon Iflmain;an- S5t. Kiev State Pedai-,,jgical
Inst Lneni A. I.I. GorIkiy. KLev, 1956. (Dissertation for the Degree of
Candidate in Pedagogical Sciences)
Knizhnaya letopis
No. 21Y 1956. Moscow

PRCKOLr=o. L.K. (Prokollienko, L.M.]
Individual approdch to children In the correction of erros in pro-
nunciation. Nauk.-doel. imst. psykhol. 11:97-101 159.
(XIBA 13:11)
I. Institut psikhologil, Kiyev.
(Speech therapy)

PROKOLIYEKKO. L.N.
-.", - -
Conference on problems and methods at the Institute for Ps7choloa
of the Ukrainian S.S.R. Vop. psi.~hol. 6 no. 6:187-190 &D 160.
(Ukraine--lducati'.Onal'psychologr) (MIRA 13:12)

PROKOLVYEV, V.
Diploma of communist maturitcy. Zrian.sila 37 ao.2:6-7 F
155, ~ 3 )
(Communist ethics)
q
i
I
I
I
i
I
I
Ir: .
I
'I
I

PANKOVA, F., kand.tekhn.nauk; PROKOLIYEVA, T.; LYUTIKOVA, P.
Canning eggs in liquid form. Hias.ind.SSSR 32 no.6:22-23 '61.
(MIRA 15:2)
(Egg--Preservation)

VASILIYEV, Dmitriy Konstantinovich inzh., retsenzent;
NEDELINP N.K., nauchnvy red.; OZEROVA,'.Z.V., red.; KRYAKOVA,
D.M., tekhn. red.
(Equipment and devices in ship repairsl0snastka i prtoposob-
leniia v sudoremonte. Leningrad, Sudpromgiz, 1963,,.- 196 p.
-14Z
*Pr*r*r&tIo3 of Chlarotrifluc,~tL~ in a Xinizturw Mant Vith
u,jt rLstill.t4on.* of th. r
Lad Fluoriwbon Che~t.trv %fTnat47Z't CU: Sllicom- u.-.i ?Iu~ktrbda
.b4=1., at RaAmb~l t Pre -.T X. VULLM 'I p-A 146 -1,- 3.
*P.&duaU*n Prolucts of Phe"'I'a, 3adlec O~tAlnvl ~r
11y,Lr.g.a.tion kith A.IZ03-*%-SLS R~.* ZA:=~ and
04,t-.,d 7.7tT_~& of th. DI,i,lon of Kith lr-wir.
,bUtlu~.,A Ygin Lba-.tuy of th. TW 4ydrl.r~~.4
Lilco. Worts) at -.list P? IN-1~2-
~SUAI-s cc Us Vt-OcWy -u4
b4lurtor t A Oil PLO,!LC.1 b:' L,~
C. o' ti=., ?"Ar Ln- 1LA, K.rI 1.r. V~I.r.ltj
zr
I. Wrzir I-,% low (uUtl* I. p-t I:* ItIs lmwr~.l
JTOAamo. ==L (L"rettor of U~ 7- -h md Ze-lap-tit Z2 vista
of &' Za8tz~ t-4 -1f 2r.-Sn;t-r Ctort-Lrd
t1ho L.1p.11 In.-AVA. a! Organic
-~~OT-.ahnola&7 of -.b. 3~ , U.dawl of Sal.w., In BrlLi
pp 152-IM.
0. 45c- Voleaular Cczpwjn4s off'

PROKOPY Vit
Distribution of operational costs in the electrolytic production of
chlorine and soda lye. Chem prum 11 no.11:585-586 N 161.
1. Chemoprojakt, Bratislava.

HORVAT, F
II, nc.1:23-26 F'65.
1. lUsne, no-ne At kren-
cl I
v Piestanoch, vliDr. F.

Anesthesiology
CZECHOSLOVAKIA UDC 616-089.5(-.615.738.615.784)
POCTA, Jaroslav; 'PROKOP,_Vlastim,il; Department of Anesthesiology, Central
Military Hospital--FAi~~s-ie--z~i'.o"-i'-o-g"icke Oddeleni Ustredni VojenBke Semocnice),
Prague, Head (Nacelnik) Docent Dr JIRI POXOILW.
"Neuroleptanalgesia."
Prague, YDjiP_nake_jdxAygjujtjje_LjAU, Vol 35, No 3, Jun 66, pp 117-121
Abstracts The authors describe their experience 'with the use of neuro-
leptanalgesia, both in general and in local unesthesia. The drugs which
they used were Dchydrobenzperidol and Fentanyl. 200 operations conducted
at the Central Military Hospital at Prague in a 6 months period in 1965-
1966 are discussed. The length of the individual surgical treatments
varied between ~ and 4j hours. The course of the anesthesia is described;
its effects upon breathing, blood circulation, and the CNS are evaluated.
Instances when neuroleptanalgesia should be combined with the use of other
anesthetics are discussed. Side effects of neuroleptanalgetics are de-
scribed. I Figure, I Table, 8 Western references,
1/1

PROKOP, Z.
A seminar or. the use of plastic materials in the wool industry. p. 126.
TEXTIL. (Ministerstvo lehkeho pruuLvslu) Praha, Czechoslovakia. Vol. 14,
no. It, April 1959.
Monthly List of East European Accessions (EFAI) LC, Vol. 8, No. 11,
November 1959.
Uncl.

L 1241-63
EWT WAPF(n)-2/~WP (q)/EW (m)/BDS/T-!'2)/EW (b)-2--AFFTCASD/
-v0D-j/S3D--PU-4--GqAq/ijP (C)/JD
ACCESSION VR: AR3000368 s/0058/63/000/004,/EO55/-PO55
S=CE: RZh. Fizilm, Abs. 4E373
AUTHCR: Prdkopalo,_ 0. Fesenko, Ye. G.
TITIZ: Effect of annealing temperature and of the state of the initial cormonents-
on the dielectric propertie of Ba Ti 0 ~qlb 3 -- Ba Fe 0 sub 3 mixtures
CIM SOURCE: Sb. Segnetoelektriki. Rostov-na-Donu, Rostavsk. un-t, 1961,
101-104
TOPIC TAGS: Ferroelectrics, dielectric properties, effect of annealing
TRANSIATION: An investigation was made of the dependence of the dielectric
cmstant and the Curie temperature of ceramic specimens of isomorphou'%mixtures
of BaTi sub 3 and 13,cSeO sub 3 cn the crystaUine modifications of the initial
components and the temperature of the finel annealing of the specimens. The
mixture components employed were cubic (K) and tetragonal (T) Ba: 10 b 3, f d
X su an
cubic (k), tetragcnal (p), and hexagonal (h) BaFeO sub 3. The jeepared mixtures
Card -1/p

L 10061-63
ACCESSIM M: AR3000368
Ia.$ Kt.* Kh's Tk, Tt, and Th contained not more than 10.molar precent of BaFeO sub
.30 'The specimens were annealed at a temperature of 1380 and 1500 degrees C vrd
measured at a frequency of 0.5 megacycles at a field intensity .100 v/cm. For
the Tt, Tk, and Th specimens obtained by annealing at 1380 degrees C, the value
of Epsilon decreases, particularly at the Curie temperature, with increasing
percentage content of BaFeO sub'3. The Curie temperature remained practically
the same . For the specimens Kk, Kt, and Kb the Curie temperature decreases along
with the decrease of EIpsilon. The greatest reduction in the Curie temperature
was cbserved in the Kk specimen. With increasing annealing temperature to 1500
degrees C, the Curie temperature for all- the specimens greatly decreases with
increasing concentration of BaFeO sub 3. The obtained results are q~ialitatively
explained by the diffusion process which occurred auring.the sintering of the
specimens and the transformation of the perovskite modification of Ba Ti 0 sub 3
Pnd of BeFeO sub 3 into hexagonal at temperatures aborve 1200 degrees C.
A. Fotchenkov
DAM ACQ: 14My63 ENCL* 00 M 0012: PH
cs/W
Card 21P

ACCESSION NR: AR4046009 S/0058/64/000/007/EO39/EO40
SOURCE: Ref. zh. Fizika, Abs. 7E298
AUTHORS: Fesenko, Ye. G.; Prokopalo, 0. 1,;?; Komarovs V. D.;
Shpolyasnskiy, Ya. A.
TITLE: Investigation of the effect of modifiers with pentavalent
,cations on the properties of barium titanate
;-CITED SOURCE: Izv. Leningr. elektrotekhn. in-ta, vy*p. 51, 1963,
1252-2159
TOPIC TAGS: ferroelectric material, barium titanate, dielectric
constant, x ray diffraction study, perovskite structure, pentavalent
cation
!TRANSLATION: To study the influence of modifiers on the properties
~of BaTiO the oxides V 0 Nb 0 , Ta 0 , and Sb 0 were used and
3 2 5 2 5 2 5 2 5
Card 1/3

I
!ACCESSION NR: AR4046009
1were introduced into the BaTiO by mixing for four hours in a ball
1 3
!crusher and sintering at 1380-1450C. The dielectric measurements
ihave shown that with increasing V 0 content the character of the
.2 5
curves E = f(t) does not change, the maximum of 6 decreases, and the
,Curie temperature drops 3--4%. Additions of Sb 0 greatly reduce the
2 5
ivalue of c at the Curie points, down to complete vanishing of the
Imaximum of e when 5% of Sb 0 is introduced; a maximum of c appears
2 3
!at room temperature, the magnitude of which decreases with increasing
Sb 0 content. When Ta 0 or Nb 0 is introduced into the BaTiO
2 5 2 5 2 5 38
:a decrease is observed in the value of E at the maximum, and the
,Curie temperature remains unchanged. With increasing concentrat4.on
,of Nb205f the average.dimensions of the crystallites change from
30-50 P. for p ure BaTiO 3 to 1 ~t or less for samples with 5% ITh 2 05
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ACCESSION NR: AR4046009
X-ray diffraction investigations have shown that in all cases the
perovskite structure is retained and that there is no hexagonal
phase whatever. Thus, the introduction of pentavalent ions sta-
bilizes the ferroelectria modification of BaTiO3 G. rpol'dGr.
SUB CODE: 1414, SS ENCL. 00
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