SCIENTIFIC ABSTRACT KUZNETSOVA, YE. S. - KUZNETSOVA, Z. I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000928220020-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 20, 2000
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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Of gradual de Mobility nt when T,
Of Mobility data at hIncreased satura- I
creane It In both arsenide, t atoms form electricaj
CzOc1rajSkI tech,1q, a giVen 'died displayed a
carrier conce concentration. A v1de dispersion
pensating effect e and bY oriented ntration for GaAs
Ures. Of the unc crystallIzatjoh was explained bY the com_
BUB CODE: ontrOllable crystals Prepared by
acceptor Impurity.
,QD SUBM DATz: Orig. art. has: 5 fIg7
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007/ ATD MESS:
ACC

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ACC Hki A116011317' soncL con'.' uit/t)36.-ij661002/0f)-I/Otj6l/0463
AUTHOR: Kharakhorin,_F. F.; Kuznatvova, Ye. S.; Potapo-v, V.
Glukhov, A.
ORG: non a
TITLE: Relation between mobility and concentration of carriero in
indium arsenide
/A.
1~70URCE: AN SSSR.' Izvestiya. Neorg4nicheokiye materialy, v*,2j no. 3.
1966, 461-463 , - -I
TOPIC TAG51 indium compound, arsenide, indium arsenide, somicoiiductor
single crystal, electron mobility, carrier concentration
ABSTRACT: -Variations of Hall mobility at different carrier (electron)
concentrations (n - ND -~ 11A) in the 4-1015_1017/cc range have been
n~udied at 30OF in indium arsenide, as one of the most promising
AIIIBV compounds. The theoretical plot of mobility versus n was
cnIculated uning the Brooko formula for ;inro~lipen,,intod 0) and
compensated innterials which cover conconCration rc,.j;1oni3 with nondegr-n-
arated and weakly. degenerated Atateuri, retipectLvely. Comparison was
made of On calculated data with the experimental data from literature
ind with the authoral own data. The latter were obtained with single
Card 1/2 UDCt 546.662119ls537.311.33

L --LK, -10
ACC NR: APS011317
crystals grown either by oriented crystallization or by Ctochralski-
Gremmelmayer technique. Host of the data for the samples grown by
the first technique (n - 3-1016-8.1016/cc Ind mobility - 29,700-22,000
CM2/v/soc) were in agreement with the calculated data. Data obtained
with the samples grown by Czoehralski technique (n - 5-1016-1017/cc
and mobility - 24#300-200000 tm2/v!*ec) were somewhat lower and the
.literature data were considerably lower than theoretical. The
discrepancy between theoretical and some of the experimental data was
attributed to a variable degree of compensation by impurities. Orig.
art. hast 2 figures and 3 formula#. JJKJ
SUB CODEs 20/- SUBWDAM~-Mu165/ OTH REF: 008/ ATD PRESS:q-jj~

L 32043-66 EWrW/EWP(0/BTI IJPW JD
ACC NIR: AP6013335 SOURCE CODE; UR/0363/66/002/004/0582/0584
AUTHOR: IGarakhorin, F.F.; Xuznetsova, Ye. S.; Glukhov, A.A.; Potapov, V.I.
ORG: none
TITLE: Purification of arsenic by sublimation
SOURCE: AN SSSR. Izvestlya. Noorganicheakiye materialy, v. 2, no. 4, 1966, 58-2-684'
TOPIC TAGS: arsenic$ sublimation, metal purification
ABSTRACT: A process and the corresponding equipment have been developed for purifying
arsenic by sublimation. Usually, one or twonublimations are performed, Impurities of
low vapor pressure such as copper, iron, and aluminum being thus removed. Moro
sublimations are required to remove impurities having a substantial vapor -pressure (zinc,
cadmium, sulfur, selenium, tellurium). The process avoids contamination of the arsenic
by eliminating Its transfer from one ampoule to another. Radloactivation analysis has
shown that after 4-5 sublimations, for a threefold decrease in the total im~purity content,
the amount of sulfur decreased by a factor of 6 - 10, Arsenic obtained after five sub-
limations was usc(i to synthesize Indium arsenide with a carrier concentration of
4 x 10IGem-3 and a mobility of 29, 000 cm2/V see at 300K, which also indicates that the
Card 1/2 UDC: 546.19
C.Va 2/2,

SOV/137-58- IZ-Z5510
Translation from: Referativnyy zhurnal - Metallurgiya, 1958, Nr 12, p Z01 (USSR)
AUTHORS: , Kuznetsova, Ye. T., Tatalayeva, 0. D. . Tikhonov, A. S.
TITLE- Rapid Method for the Analysis of a Cadmium Alloy Using Sodium
Versenate (Uskorennyy metod analiza kadmiyevogo splava 9 primeneni-
yem trilona B)
PERIODICAL: Sb. tr. Voronezhsk. otd. Vses. khim. o-va im. D. 1. Mendeleyeva,
1957, Nr 1, pp 151-154
ABSTRACT: The analysis of the Cd-Sn-Pb alloy is based on the initial separation of
Sn in the form of metastannic acid from a nitric-acid solution followed
by the volumetric determination of Cd and Pb jointly and of Pb separately
in separate portions of the solution. 0.5 g of the alloy are dissolved in
15 cc of HN03 0: 1), Sn is filtered off, and the filtrate is diluted to Z50
CC. 10 cc of 10*16 KNa-tartarate solution and one drop of methyl,red are
added to 50 cc of the solution, whereupon it is neutralized with NH40H.
10cc of an ammoniacal buffer solution (mixture of 350 cc of 25% NH40H
anA 54 g NH4CI in I liter of water), 10 cc of 1074 NaGN. solid chromogen
ytdded, and the whole is titrated with so-
black and 100 cc of water arez
Card 1/2 dium versenate (I). The Pb content is calculated according to the

SOV/137-58- 12-25510
Rapid Method for the Analysis of a Cadmium Alloy Using Sodium Versenate
formula: JoPb=5 V - M - 207.21 - 100/1000 D, where V is the volume of I ust-d in
the titration of Pb, M is the molarity of 1, and D is the weight of the specimen of
the alloy. To another 50 cc portion of the solution are added an excess of I solution
and one drop of methyl red; it is neutralized with NN014, 10 cc of the ammoniacal
buffer and chromogen black are added, and the excess I is titrated with a solution of
M9S04 until the color changes from blue-green to blue. In this way th,e sun-) iota] of
Pb and Cd is determined. Cd is calculated by the following formula -
I/oCd = 5 [ (VjMl -VZMZ)-VMI- 112.41, 100/1000a, where VI is the volunie of I
taken in excess, M, is the molarity of 1, VZ is the volume f "molarity" in Russ.
Text; Transl.Note I of the MgS04 solution used for the back titration, and M2 is
the molarity Of MgS04. Results are adduced for the analysis of the following alloys:
(in 76): Sn 46. 5, Cd 17. 3, and Pb 35.5 with an error for Cd from -0. 29 to +0. 36%
and for Pb from - 0. 49 to + 0. 1376.
Z - G
Card 2/2

VENGFROV, V.G.0 inzh.; RUZNETSOVAI Ye.V.9 inzh.
Potentialitlos of safet-V 'n large-scale elortric blasting.
Vzry,v. delo, no.57/14s~19-321 165. (M-TRA 18t11)
I N,
1. Permskiy politekhnicheskiy institut.

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ACC NRi AT6010028 JWD SOURCE CODE; UR/2996/65/000/057/0319/0321
AUTHORs Vengerov, V. G. (Engineer); Kuznetsova, Ye. V. (Engineer)
ORGi Perm Polytechnical Institute (Permskiy politakhnichaskLy
institu 0,
TITLE: Safety factors ~nd quantity of electric-ietonationsit
SOURCE: Nauchno-takhaichaskoye gornoys obahchawtvo. Vzryvnoye delo,
no. 57/149 1965. Razvittya vzryvnykh rabot v gornom dale (Development
of blasting in the mining industry)9 319-321
TOPIC TAGS: electric detonator, bridRe detonator, detonation
ABSTRACT: The use of a tungsten bridge instead of the nLchrome bridge
in the ED-8-56 electric -detonator was studied. Testing over a period
of 10 years of the electric detonator with a tungsten instead of a
nichrome bridge (4-5 mm long) showed a considerable decrease in the
number of premature detonations by stray current6p a marked decrease In
the number of misfires and incomplete detonations, and an increase
-0 5-3- times) in--tha-- number --of- -a Lmul taneou-s firings of detonator$
Card 12

L 106M66
ACC.NRt AT6010028-
connected series, Thu-s --- 0--, -the - replacement- of the nLehrome--brLdge-by
a ti - ~tldge Increases the safety factor of electric detonation
and increises,the number of simultaneous detonations. (PS)
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