SCIENTIFIC ABSTRACT SHERMERGOR, T.D. - SHEROV, A.I.
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CIA-RDP86-00513R001549120007-2
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S
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100
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Publication Date:
December 31, 1967
Content Type:
SCIENTIFIC ABSTRACT
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LWV/1126 - .11 -1
Absorption of' Unerg-y by Steel in Plastic Compression
as a function of deformation are shown. The dependence of
the entire absorbed ener6y on the work of deformation is
shown in ?16.3. In Fi--.4 the dependence of the entire absorbed
energy on true deformation is shown. In Fig.5 the dependence
of the differential absorbed relative energy on true deform-
ation is shown. The author concludes that at small,degrees
of deformation, owin~~ to the smallness of the entire absorbed
energy, relaxation processes do not play an important part.
Processes responsible for the hardening of material are most
important. In the case of large deformations, however,
further deformation is accompanied by intense relaxation
processes which level out the processes of hardening, and the
absorbed energy decreases. There are 5 figures and 3.1
references, of which 8 are Soviet, 2 English and 1 japanese.
ASSOCIATION: Sibirskiy rretallurgicheskly institut (Siberian Metallurgical
Institute)
SUBMITTED: March 13, 1957 (initially) and
April 15, 1957 (after shortening)
Card 5/5
5HE,R,v,-'-'RGIj'L~, T.D. (Stalinsk)
Disnersion correlations for elasticity and pliability. PMTF
no.1:96-102 My-Je '60. (MIRA 14:8)
(Elasticity)
SHE,R~ERGCR, -.P2--(StalinsA)
Relations between c-.~rtain types of deformation. PYIN no.2:150-:52
6o. (KIRA 1-'-: 6)
(Deformations (Mechanics))
82339
0 0 5/139/60/000/03/034/045
AUTHOR: Shermerzor_,,__j,!tD E073/E335
TITLE: Calculation of the Distribution Function of Relaxation
Constants for Elastic-viscous Bodies _7_(0
PERIODICAL: Izvestiya vysshikh uchebnykh zavedeniy, Fizika,
1960, No 3, pp 185 - 194 (USSR)
ABSTRACT: For calculating the distribution spectrum the author
startsoff from the thermodynamic equation of non-
equilibrium mechanical processes.based on an earlier
paper of the author (Ref 3). Disregarding temperature
changes, this equation can be written thus (Refs 4,5).~
+ Lyikem-k"e m
3.k Mk
Eik 2ik - L14' jemll(rem
where &. and E are respectively the stress and
Xk lk
strain tensors If. and c are their equilibrium
xk ik
Cardl/2 values and \V ik?m (s) and (4) iktm (s') are the tensors of
kK
82339
S/139/60/000/03/034/045
EOZ~~E~32
Calculation of the Distribution Fun 0 f Relaxation Constants
for Elastic-viscous Bodies
the distributio:n.of relaxation constants s and of
retardations sl ; L is the operator of the integral
Laplace transform. A dot on top denotes a time
derivative; the asterisk denotes a convolution on the
section (0, t). The relaxation and retardation spectra are
calculated by means of the following methods: sine (cosine)
- Fourier and Laplace transforms; complex and real
Stieltjes transforms; convolution theorems for Fourier
transforms. There are I figure and 12 references,
2 of which are English and 10 Soviet,,
ASSOCIATION: Sibirskiy metallurgicheskiy institut imeni
S. Ordzhonikidze (Siberian Metallurgical Institute imeni
S. Ordzhonikidze)
Pr
SUBMITTED: July 24, 1959
Card 2/2
0 0
S/126/60/009/02/001/033
AUTHOR: Shermerxor~ T.D. E031/E335
TITLE: The Calculation of the Distribution Functions o-f Relaxation
Times for Elastic After-effec
PERIODICAL: Fizika metallov i metallovedeniye, 196o, vol 9, Nr 2,
pp 161 - 168 (USSR)
ABSTRACT: Relaxation relations governing the relation of stress and
deformation tensors obtained with the aid of irreversible
thermodynamic processes are extended to the continuous
relaxation spectrum. Expressions are deduced by which
the distribution functions of relaxation times can be
calculated from the experimental curves d(t) and
e(t) for a number of time dependencies. In the elastic
deformation of real bodies relaxation processes can have
different intensities and so real bodies possess
relaxation spectra. To find the relation between the
characteristics of the spectrum and the mechanical
properties expressions for the stress and deformation
tensors which are obtained with the aid of irreversible
0
t h ermo dynamic sl 10 ec Weecf, the variation of temperature
Cardi/4 being ignored. These expressions are generalized and
6 &') 20
S/126/60/009/02/001/033
POA14E~~5
The Calculation of the Distribution Func T n Relaxation Times
for Elastic After-effect
the passage to the limit is made. Further generalisation
to the case of a continuous spectrum introduces distri-
bution functions for the relaxation times and
relaxation frequencies, in terms of which the above
tensors can be expressed. Before calculating the
distribution tensors for the relaxation frequencies, it
is shown that distribution tensors corresponding to the
stress tensor and the deformation tensor are not independent,
by considering the loading due to an impulse. The
relations obtained are illustrated for the case of a standard
linear body. The calculation of the distribution tensors
for the relaxation frequencies is illustrated by examples
in the first of which the tensor for the velocity of
deformation has an exponential form:
iU(t) = to exp(pt)
Card2/4
The Calculation of the Distribution
for Elastic After-effect
S/126/60/009/02/001/033
E2?14E~39f Relaxation Times
Fun I n
In the second example the velocity of deformation is
constant in the interval (0, t 1 after which the
deformation is fixed:
E (t) = LO 11(t) - 1(t tA
ik ik
(29)
(where l(t) is the unit step function)
The distribution tensor for relaxation frequencies
can be determined from relaxation curves, which are
obtained experimentally but it must be remembered
that expressiorB derived are valid only for small
deformations, not taking the system beyond the elastic
limi-t. The corresponding cases to those above,urhen
the tensor for the velocity of stress (giving the
retardation spectrum) is taken instead of the tensor
Card3/4 for the velocity of deformation, are briefly conddered.
K
68~ 6 2 G'
S/126/6o/oog/02/001/033
E03l/E3
The Calculation of the Distribution Functions oPRelaxation Times
for Elastic After-effect
There are 14 references, of which I is English and
13 are Soviet.
ASSOCIATION: Sibirskiy metallurgicheskiy institut im.
S. Ordzhonikidze (S;kberlan Metallurgical Institute
im. S, Ordzhonikidze,)
SUBMITTED: June 2, 1959, initially,
September 28, 1959, after revision.
Card 4/4
0~1 1;~L 89699
go?), Lj 0 16 S/139/61/ooo/001/007/018
E030/E435
AUTHOR: Shermergor, T.D.
TITLE- Calc;ulation of the Distribution Function of Relaxation
Constants in Terms of the Real Part of the Complex
Elasticity for Visco-Elastic Solids
PERIODICAL: Izvestiya vysshikh uchebny zavedeniy, Fizika,
1961, No.1, PP-77-83
TEXT: A method is developed for calculating the distribution of
relaxation times of visco-elastic solids from the frequency
dependence of the real part of the elastic modulus. As an
example, the distribution is assumed to be
1
2 (th a x + 1)
where a and wo are parameters and x = in-~- W being the
0 9 .
radian frequency. This simplified distribution gives very good
agreement with experimental results of Ke Tin-Suya on poly-
crystalline aluminium, as shown in Fig.1 where the abscissa is
where X equals ('Xo + x) and also equals W U/RT
Card 1/4 In I-, a e
89699
S/139/61/000/001/007/ol8
Calculation of the Distribution ... E030/E435
The value of -X 0 giving the best fit to the data is 10.6~
U is the activation energy and T the absolute temperature. In
the general case, the relaxation spectrum is obtained by Fourier
decomposition from the modulus M at a radian frequency w as
follows. The real modulus is given as
2
M'(W) - Mo 0) ~(s) ds (2)
2-2
s + w
0
where the form of (P(s) must be found. The value of dH(x)
is calculated, called P(x), and transformed to dx
P(U) d(u)T(u) (8)
where an iut
G(u) 2 ch2t dt (9)
CO
Card 2/4
3/139/61/000/001/007/018
Calculation of the Distribution ... E030/E435
and the function F(u)-so determined is then transformed back to
F(y). F(y) gives the required distribution since it is shown that
H(x) W TK(x-y)F(y)dy (5)
where -00
K (x-y) C -1 ( th _Y1 + 1)
2 fx
By taking first and second moments of the redistribution function
F(y), it is shown that the first moment is zero and the second is
T(2
1 2 CLY
and it is also seen that w0 = so. Curves of the relaxation
constant distribution for polycrystalline aluminium are evaluated
and plotted. There'are 2 figures and 7 references: 6 Soviet and
1 non-Soviet.
Card 3/4
89699
S/139/61/000/001/007/ol8
Calculation of the Distribution ... E03o/E435
ASSOCIATION: Sibirskiy metallurgicheskiy institut imeni
S.Ordzhonikidze (Siberian Metallurgical Institute
imeni S.Ordzhonikidze)
SUBMITTED: December 4, 1959
Fig.l. Dispersion'curve of the real
elastic modulus of polycrystalline
aluminium, according to the data of
Ke Tin-Suya (points) and according
to the dispersion formula quoted above
(full line). G is the real elastic
modulus at w.
oil
.Card 4/4
S/207/62/000/006/oi6/025
On the temperature ... E031/E492
almost completely coirici(le, so that for the analysis of
experimplital lata th" rl,eologicAL model can be used. Both methods
giv(' tllt~ 9W-z Val-e of' the temperature at which the oscillations
cease. to be per-iod-ic ai-d I-ecome nperiodic. This temperature
depencts on both the physical. properties of the material of the
pendulum ancl oil the geometry of the Bystem. There are 2 figures.
SUBMITTED: MaY 3, 1962
W;
Card 2/2
ACCESSION NR: AR4042132
8/O124/64/OOO/0D6/VO33/V033
SOURCE: Ref. zh. Mekhanika. Abe. 6V245
AUTHOR: Shermergor, T.-D..
TITLE: Temperature relaxation in solid bodies
CITED SOURCE: Sb. Relaksata. yavleniya Y met. i aplayakh. M., Metallurgisdat,
1963, 27-30
TOPIC TAGS: abaorption coefficient, temperature relaxation, irreversible proceent
irreversible process thermodynamics, heat conduction equation
TRANSLATION: 'Mvea a comparison of two calculation methods of absorption coef-
ficient, one or which is based on themodynamics of irreversible processes, and the,
other - on the que of heat-conduction equation. Considers propagation of a flat
longitudinal vaya in an unlimited isotropic medium, in which the only relaxation
I mechanism in th,~,rmal conduction. It is found that for high frequencies the wave in
isothermal, arA for small - adiabatic; the propagation speed of these wavea in
determined. Gii4s a comparison of considered temperatvre r2larstiom with-b-gh*viar'
.S!1rd 112
Accmiom NR2 A.R4o42232
of a ttandard 11mear body, expressions for adiabatic modulus of manifold compres-
sion) and rel&xation time, caused by relaxation of heat flow in a longitudinal
xa,fe. Expressions for internal friction, coefficient of absorption, and its
temperature part at low frequencies are obtained. For usual sonic and ultrasonic
frequencies the longitudinal wave can be considered adiabatic. A general expression
is given for stress teneors in the case when, in the considered frequency range, '
there can also Dccur other relaxation processes (defects of moduli and relaxation
tizes determine the relaxation mechaniam, which is not caused by thermal conduction)e
SUB CODSI TDI MS ZWLs W
Card 212
ACCESSION NR: AR4043999 S/0058/64/000/006/EO41/EO41
SOURCE: Refe zh. Fizikaq Abe. 6E307
AUTHOR: Shermergor, T. D.
TITLE: The phenomenological theory of internal friction
CITEE SOURCE: Sb. Relsksate. yavleniya v met. i splavakh. M., Metallurgizdat,
1963, 33-39
TOPIC TAGS: internal friction, thermodynamic theory, irreversible process,
nonequilibriuM stress tensor, deformation, isotropic medium
TRANSLATION: On the basis of the thermodynamic theory of irreversible processes
there is obtained an expression for the nonequilibrium stress tensor during small
deformations of a uniform isotropic medium. It is proposed that in the medium
a active only one relaxation mechanism ( diffusion, grain-boundary, dislocation,
etc.). The obtained expression is generalized for the case of a heterogeneous 1
medium (for simplicity, calculations are given only for the stress deviator). There
is given a calculation of the relaxation-time spectrum.
SUB CODE: SS, TD ENCL: 00
Card 1/1
SHEW-ERGOR T.D
Thi,rd all-Union interuniversity conference on relaxation
phenomena in metals and alloys. Izv. vys. ucheb. zav; fiz.
no.1:176 163. (MIRA 16-5)
1. Voronezhskiy gosudarstvennyy universitet.
(Metals-Congresses)
6.1. '~',D. (Vororiezh)
..L~S!~Kovl
Higzi-terapera,~ure rnal friction in t'i-le ca!3e of longitudiral os-
cillations. ?!-,~F no.3:20-25 MIY-Je '63. (I-ORA 16:9)
( Fharmod.1,-namic.3) (Irrcvers-*~blo pmr-l-so.-,s)
SOURCE-, Ref . Z'h. Fixilta, Abe. 73246,
a
AUTHORSt Shezmergore T. D.; Mesbkov, S. 1.
TITLEs Phenomenological description of high-t9nerat rnal'~-
Ke-Aints
friction
CITED SOURCE: Sb. Relaksats. yavleniya v. not. i splavakh., mef
Metallurgizdat, 1963, 46-52
TOPIC TAGSt internal friction, shear-stress, shear resistance,
TRANSLATION: A physical analysis of*th quodels-us ed for a pheno-
menological description of higbr-teFS"ratUre infernal- friction (I Fi)
is presented. Pheological . models are considered and-'--*t. is shown
that in spite'of.their simplicity and clarity 'thdy-,cannot be recom- 1~
torsion, stress relaxation, model theory
L 13001-65
[-ACCESSION NR: AR4046008
*-LESHKOV, S. 1. (Voronezr,,'; POSTNIKOV, V. S. (ftrotezti); SHEW-ERGOR, 1'.
(Voronezh)
Temperature dt:rendence of Lhe internal friction of a standard
limiar solia under heavy damping conditions. Izv. AN SSSR.
no.3:90-95 164 MY-Je I OxIft.. 1,/.,
L 17117-65
ACCESS NM AP5000643 S/0181/64/006/012/3502/3608
AUTHOR: Turkov, S K.; Shermergor,_ T. D.
TITLE: Internal friction in the interaction betwerin impurity atoms and edge dislocations
SOURCE: Fizika tvardogo tela, v. 6, no, 12, 1964, 35024608
TOPIC TAGS: dislocation study, dislocation motion, internal frictionj impurity.move-
ment, edge dislocation
ABSTRACT: The authors calculate the internal friction due to the diffusion of impurity
atoms in the stress field of an edge dislocation that executes harmonic oscillations in'
1 the slip plane under the influence of an external force. An oscillation amplitude averaged
over the -dislocation length is used to simplify the calculations, and inertial forces are
neglected. The frequency and concentration dependences of the internal friction due to
this mechanism are investigated and no limitation Is imposed on the Impurity concentra-
tion. The results show that the dependence of the Internal friction on the impurity cork-
centration and on the free length of the dislocation Is more complicated than obtained by
C rd 1/2
71"
L 17117-65
ACCESSION NIL AP5000643
J. 0. Kessler (Phys. Rev. v. 106, 654, 1957). At large Impurity concentrations the In
ternal, friction is Inversely proportional to the concentration and does not depend on the
free dislocation length. In the caseeflow concentrations and for high frequencies the
results are close to those of Kessler. At very high fre(Pencies, account must be taken
of the inertial forces. Orig. art. has: 3 figures and 28 formulas.
ASSOCIATION: VoronezhBidy politekhnicheakiy institute (Voronezh Polytechnic 108titUte).
SUBbUTTED- 21Apr64 ENCL: 00
SUB CODE: S9 NR REF BOV: 002 OTHER: 004
2/2
Card
DARINSKIY., B.M.; SHERMERGOR, T~Ds
Temperature relaxation in cubic structure polycrystals. Fiz.met.
i metalloved. 18 no.5:645-653 N f64*
1. Voronezhskiy politekhnicheskiy institut. (MIRA 18,.4)
"FM
L 7o82-66 EWTW/T/EWP(t)/'EWP(b)/EWA(c) JD
ACC NR: AP5027274 SOURCE CODE: UR/0207/65/000/005/0084/0089
AUTHORS: Darins B. M. (Voronezh); Shermergor, T. D. (Voronezh)
ORG: none
TITLE: On the theory of diffusion6relaxation in polycrystals
SOURCE: Zhurnal prikladnoy mekhaniki i tekbnicheskoy fiziki, no. 5., 1965j 84-89
TOPIC TAGS: solid state, polycrystal, diffusion relaxation., crystal
ABSTRAM This paper is an extension of the theory of diffusion relaxation in poly-
crystals, first proposed by K. Ziner (Sb. BUprugost' i neuprugost' metallov" Izd.
inostr. lit., 1954). The authors present an exact calculation of the intensity of
the relaxation process in polycrystals of arbitrary crystallographic symmetry by
taking into account pair correlation of K. Ziner between crystal nuclei. Calcula-
tions are based on the not of equations which describe an elastic-diffusion system
cle v
ViDikVkC 7- 1 a i
RT VjeDik0vkbtmutm=-q
VkX1k1MU1M-Vkbjkc=-/j+ (1.2)
bik = Oalk 8C Ijklmy1my Tim ='Oelm ac (1.3) di
Dik Diko (1 C) X.
RimTaTim, 81m '/2 (Ulm + uWY
Card 1/2
L 7o82-66
ACC NRt AP5027274
ffere e is the concentration of Impurity atoms, n and N the number of impurity ator
and total atoms per unit vol respectively,, Dik - coefficient of diffusion,, D ik
its value at c--..%O, bik and Yik - concentration tension and deformation tensors
respectively, Vo - the molar volume, R - the gas constant uik = ui,k - distortion
tensor, u - the displacement vector, E deformation tensor,, q - strength of
A
impurity atoms source, and f - force density. The authors derive expressions for:
a) the degree of relaxation (first order approximation), b) complete defects in
the moduli for overall compression and shear, and c) the time relaxation distribu-
tion function. The derived expressions are applied to the system Fe - C containing
4.5% at 1250C. The calculations for this system yield the degree of relaxation
-3 -6 2 -3
1.5 x-10 and D = 3.2 x 10 see/cm . For crystallites of ev 10 cm. diameter,
the peak of inner friction corresponds to a.frequency ofe.1 1 cycle/sec.' A deriva-
tion. for ascending diffusionfor a nonhomogeneous anisotropic zqdiu~m is appended,
Orig. art. hast 42 equations.
SUB CODE: GC/ SUBM DATEt 13Dao64/ ORIG REF: 010/ OTH REF: 003
nw
~2/2
body.
a E
C)
I
r '01
AN
L 33hh-66 DIT (1) /E7tTT(m)/T/19.T (t) /W (b) IWA (c)
ACCESSION NR: AP5017299
1JF(c) JD/JG/GG
~AUTHORS: Turkov, S. K.; Shermergor, T. D.
TITLE: Internal friction in a face-centered
,reorientation of bivacancies
iSOURCE: Fizika tverdogo tela, v. 7, no. 7,
TOPIC TAGS:
vacancy
cubic lattice due to
1965, 2o64-2o6g
internal friction, crystal lattice structurp,, crystal
;X1
IABSTRACT: The purpose of the paper was to calculate theoretically
'the internal friction produced by the reorientation of bivacancies
In an external field, bLnd to investigate the peculiarities of the
internal-friction peak produced by these bivacancies. The authors
determine the kinetics of the internal friction due to the change in
the concentration of the bivacancies having a specified orientation
under the influence of.applied external stresses. Is is shown that
the width of the bivacancy internal-fricti6n- peak depends essential
on the orientation of thearyRtallographic axes relative to the ap-
Card 1/2
L 3344-66
ACCESSION NR: AP5017299
plied stress. The amount of lattice distortion is calculated to es- ~1
timate the magnitude of the relaxation peak. It is shown that the
;reorientation of the bivaaancies is characterized in general by two:-
,relaxation times, differing by a factor of appro imately 1.5 The
?Y%
results are compared with experiment for copper silver nd
It is concluded that to reconcile the experiment 1 and theoretical-...,
.data it is necessary to assume that during.the quenching an appreei..'i -
:able part of the vacancies condenses into bivacancies. Orig. art.1'-
has: 20 formulas and 1 table.
ASSOCIATION: Voronezhakiy-politekhnicheskiy.institut (Vor-one-
Z
lPolytecbnic Institute
SUBMITTED: 18Jan'65
SUB COMO
ENCL: 00 SS
INR REF SOV: 000 '-ommi., o*..
Card 2/2
'T 3J,.; T J~,
IUP?MVp
Erfect of' th- ;i1rAnEr -~n th- backirround ol,
intc~rnal fr~~ctlon. ~lz. 'wer. ~-IFi 7 r:,-j.IC--,2952.-~q57 0 `65.
(NJFIA
1, Voronezhsk~.-y poItteklinichos~Jy iristit:.,t.
23677-66 ';;-,*IT (m) /T/EMP ( t
IJP(c) jD
ACC NRt AR6oo5218__ SOURCE CODE: UB/0058/65/000/009/E)D57/ED58
AUTHOR: Meshkairy I. S.; Shermergor) To D.
TITLE: On the description of the internal friction in solid bodies with the aid of
rheological models
SOURCE: Ref. zh. Fizika, Abs. 9E489
REF SOURCE: Izv. Voronezhsk. gos.-p2d. jR-:La,., v. 44, 1964.. 1-16-123
TOPIC TAGS: internal friction, rheologic property,
elastic deformation, bydrostatic pressure
shear stress, relaxation process,
TRANSIATION: It is shown on the basis of an analysis of experimental results that
to describe the relaxation of shear stresses it is necessary to use a rheological
model of the Maxwellian type, and for bulk stresses the model of standard linear
body (with a single relaxation time). Expressions are obtained for the internal
friction (IF) and the dynamic moduli under shear and bulk deformations, and also for
the case of a tension-compression deformation. In the latter case the form of the
dependence., and consequently also the form of the dependence of IF, is determined by
the ratio of the relaxation times, corresponding to the shear and to the bydrostatic
compression. Certain generalizations are made for more complicated rheological
models. V. Verner
SUB CODE: 20
Card
L 2662~-66 EWT(l)/EPF(n)-2/ETC(m)-6 IJP(c) WW
ACC NR: AP5025371 SOURCE CODE: UR/0181/65/007/010/2952/2957
AUTHOR: T.,kav. S. K., Shermergor. T. D.
ORG: Voronezh Polytechnic Institute (Voronezhskiy politekhnicheskiy institut)-
TITLE: The effect of stress distribution on high-temperature noise due to
internal friction
SOURCE: Fizika tverdogo tela, v. 7, no. 10, 1965, 2952-2957
TOPIO TAGS: internal friction, metal, stress distribution, crystal vacancy
ABSTRACT: The high temperature element of internal friction of metals represents
a series of peaks superposable on a curve growing monotonically with an increase
in temperature. The high temperature noise. caused by vacancy diffusion between
block boundaries or crystal grains was calculated. Unlike the similar Escaig
calculation the possibility of stress redistribution caused by the irregu-
larity of diffusion currents is considered. This leads to a considerable ircreaseI
in noise in the mean T-quency ranges. With low fre uencies of w internal fric-!,.
tion in both cases,-- with highfrequencies Orig. art. has:
Card 1/2
L 26622-66
Z
- - - - - - - - - - - - - - - - -
1: U7211'-66
ACC NR, AF6o18524 SOURCE CODE: uF/O1B2/66/OO8/oo6/167o/j67 6
AUTHOR: _Turkov, S. K.; Shermergor, T. D.
ORG: Voronezh.Polvtechnic Institute (Voronezbskiy politekhnicheskiy Institut)
TITLE: Effect of screw dislocations on the internal friction 9f para-elastic bodies
SOURCE: Fizika tverqogo tela, v. 8, no. 6, W6C,__i~~O 7CI
TOPIC TAGS: crystal"dislocation phenomenon, internal friction, crystal vibration,
elasticity theory, elastle -modulus, crystal lattice distortion
ABSTRACT: In view of the fact that the mechanism of vibration-dislocation ener&v dis-
sipation by the elastic-polarization cloud produced in para-elastic bodies, the
authors calculate the Internal friction due to the deceleration of vibrating screw
dislocations by relaxation of their stress fields in a medium possessing properties
of a standard linear body. It is assumed that the elastic polarization of the medium
is the only effective damping mechanism. The screw dislocations are assumed to
vibrate under the influence of periodic external stresses and the amplitudes of their
oscillations are considerably smaller than the distances betwqen the oscillation nodesi
T~.e relation between the internal friction of this type ard the defeat of the modulus
of the medium or the amplitude of the applied stress is determined and it Is shown
t4at. the ratio of the height of the dislocation peak to the peak of the dislocation-
free body decreases bath with Increasing defect of the modulus of the medium, and with:
Increasing amplitude of -the applied stress. The results are found to be similar to
1f.rd .112
A
L_~ 4-i
S/081 '62/CGO/018/048/059
Bi 6o/BV18o
AUTHORS: Vizell, A. 0., Shermergorn, 1. M., Tyu-lenev, S, S.
TITLE: Synthesis of polyethylene terephthalate
PERIODICAL: Referativnyy zhurnal. Khimiya, no. la, 1962, 503,
abstract 1BP62 (In collection: -Materialy 1-y
~.'onferentsii molodykh nauchn. rabotn. g. Kazan',
1959-
Sekts. khim. Kazan#, 1960" 27-34)
T-IXT: Wlays of reducing tile amount of glycol brought into the reaction and
of replacing purified N 2 by commercially pure 112 or air were investigated
in order to develop a technology for the production of polyethylene
terephthalate (PETP) using terephthalic acid dimethyl ester (MIT) as.the
raw imaterial. These investigations proved that the consumption of
ethylene glycol can be reduced(from three mols to two) by introducing the
DMT part at a time, and that it is possible to use'-dommercially pure N2
or air (instead of purified N 2)1 triphenyl phosphate (I) at the rate
of 0.4-3ia of the WIT being psed as the antioxidant.. The relation of the
Card 1/2
s/..Qp1/62/ooo/o1a/G48/C59
Synthesis of,polyethylene B1.600186
reaction ratOl'and quality ot the product obtained 'to the amount of I
introduced was studied (the'optimum amount of I being 0.75" of the
/0
amount of M11T). A new solvent (40ij phenol and 60:/,, dichlorethane), which
has good solVc~nt ability at'about 200C, was found'fbr determining the
molecular welght of the PETP from the viscosity and Ifor fractionation of
the polymer.-'EAbstracterte-note: Complete transfaltion.]
Card 212
KUZNMOV, Ye.V.; VIZELI, A-O.; SHIRMERGORN, I.M.; TYULENEV, S.S.
Relation between the molecular weight of polyethylene terephthalate
and.-the-viscosity of its solutions in a mixture of phenol and dich-
loroethane. Vysokom. soed. 2 no.2:205-209 F 160. (MIRA 13:11)
1. Knzanskiy khimiko-tekhnologichookiy institut.
(Terephthalic acid)
KUZNETSOV, Ye.V.; SHER~ERGORN, I.M.; BELYAr-,.VA, V.A.
Synthesis of polyester3 based on trivalent phosphorus acids by
condensation polymerization at the interface. Trudy KYHTI no.30:
70-76 162. (MIRA 16:10)
KUZNETSOV, Ye.V.; VIZELI, A.O.; TYULENEV, S.S.; SMRMERGOR14, I.M.
Stabilization of polyethylene terephthalate. Trudy -KKHTI no.30:
82-88 162. (MIRA 16-10)
S/0190/054/0006/001/0031/0033
AUTHORS: Kuznet:iov, Ye. V.; Gill, il. P.; Shermer.-orn, !. M.; Kuznetsova, I'S. F.
TITL_,': Synthesi's of polycoters and poly;~.-,4dez or. the basis of nitronhthalic acids
by interfacial wllycondensa~
1 tion
SOURCE: Vy-*3oI-omoIekulIyarny-*ye soyedineniya, v. 6, no. 1, 1964, 31-33
TOPT C TAGS: synthesis, polyester, poly~Liidc, polycondensation, interfacial poly-
condensation, nitrophthalic acid, dichlorides of n-itrophthalic acids, terephthalic
acid
ABST:?ACT: Solutions containing 0.2 :,.oI./Iite- of dichlorides of terepht-halic-,
Q,
nitroterephthaiic-, 4-nitronhthalic-, a.%d `-nitrophthalic acids in n-xjlene -nare
reacted with aqueous solutions of 2,2-d~-(/,-o-x-j,-,hanyi)pronane (OPP) or hexa:_-e-.hy1-
-nediam-ine (PON of the sa-me molar in the presence of 0.45 -'01/14-ar
of NaOIH. The synthesis vms conducf,;-c! ~n a fi-nssk, .,.,ith 10 minutes of energetic
m.echanical stirrinj. Foliov;inl- this, ~'-e obtaIned polyesters or polyam.-Ides were
separated by filtrat-ion, washed with water, and dried to constant The
yl~ld of the polyesters, obtained by the J_,nteraction of 'the dichlorides of nitro-
terephthalic and 4-nitro-oln'thalic acids aith OPP amounted to 86.8 and 16-/3, fheir
Cord 1/2
ACCESS-70N NO: AP40091,46 I
resDective sDecific viscosities for 0.5~- sol'u'Lions Ln tricresol averaging 0.072
and 0.019. As to the polyamides sTntLesized from the dichlorides of nitrot-ereT)h-
thalic-, 4-riitrophthaulic-, and 3-nitropht-ha-lic acids with Ma.), their yields L"mounted
to 88.0, 84.2, and 76.6'~o', with resp,2ctive sDecific viscosities of 0.5P/~o solutions in
concentrated sulfuric acid averagin,- 0.352, 0.280, and 0.223. The higher yields
and viscosities registered in the poiyef-,ters derived from the dichloride of nitro-
terephthalic acid as compared with the onus obtained on the basis of the dichlor'de
of 4-nitrophthalic acid is attributed by the authors to the fact that the latter
ingredient has its nitro group located in a meta-position in respect to the chloride
group. A similar trend, although on a less pronounced scale, was observed J.n poly-
condenoation producto of dichlorides of nitrophthalic acids with -171M. Orig, art.
has: 2 tables.
ASSOCIATION: Kazanskiy khimiko-tekhnolo6~.cheskiy institut im. S. Y. Kirova (---:azan
Chemical-Tecl-,nological Institute)
SUB.1,11TTED: 07jul62 DATE ACQ: 1OFeb64 _771CL: 00
SUB CODE: CH NO P =.- sov r oo6 OTHER: 005
Card 2/2
A L 11522-&
ACC NR.AP6003.872
AUTHORS: Shermeradvi~- M,j- K-A Yu. B.
for OrganieChemistry, AN SSSR.'X~zanl (Institut organioheskC17
ORG: Institute
khimii AN SSSR 4~-
TITLE: A study of interfacial esterification of polyvinyl alcohol
SOURCE: Vysokozoleku1yazTWye sayedineniya, v. 7# no, 12, 1965j 2156-2-159
TOPIC TAGSs. asterification,, polywirql alcohol,, polymer,
reaction mechanism ICAACII.L&
z
ABSTRAM The interphass esterification of polyvirql alcohol with benscyl chloride
vas studied. The effects of different organic solvents and different concentrations
of benzoyl obloride'lon the degree of esterification vers determined. The enterifica-
ti~n--waa caririedf-o--ut by adding Na;fA and bensoyl chloride (dissolved in an organic
solvent) to an aqueous solution of polyvizWl alcohol, and by rapid stirring of the
resultant mixture. The experimental results. are presented in tables and graphs
(see Fig. 1). It was foundthat substitution of K* for Knob bad a negligible
effect on the degree of saterification. The degree of saterification increased with
the solubility of the polyvinyl benzoate in the iorganic solvent and with increase
of the gli-11 concentration in the aqueous phase, but it vas independent of the
temperature and the duration of reaction, The experimental results are interpreted
r.A 34& VWs
SOURCE CODE: UR/0190/65/007/012/2156/2159
L n522-66
CC P& APMOM
wait"
PIC. 2. Relation between the degree or esterifteation (A) of p
virql alcohol an the ratio of bensoyl chloride to polywirWI
alcohole
in terms of a diffusion-solubility mechanism. Orig. art. has: 3 tables and I
graph.
SUB COM U/ SUB'M DALTE: OlFeb65/ ORM RXFt 004/ OTH REFt 004
AL-~507-66 -&4T(M)/&4P(j) RM
ACC NR: AP5028489 Lo / SOURCE CODE: UR10286165109010201006610066
'1~7 ttq. 50 microamp, varies within 30 -160 ohms;
r2l often changes from 450 ohms to 50 kohms,.- r2,z lie.3 within 200 ohms to
15k,hms. The family of ci-,rrent-amplffication -factor characteristics
:~'L'(10T estimated from the characteristics r2l('e" and r221," 1 permits
.-k "k.
Card 1/2
SOVI/ 112-59 - 3 -59 39
Selection of Supply for Type SID Transistors TEat Amplify Weak Signals
determining the region where C4-> 1. The Hne of maximum values of -.4, lies
within the rarge of 'e values from 20-60 microamr), and shifts toward higher
,values of le when ---k increases, Stability is determined by the expression
E "
nb 1, where (kob is the re-verse-&--ection amplification factor.
0( 6)~
Stable operation of the amplifier -is ensured with -7 k< 3 ma. Various
transistors show a v-,-;de spread. The circLit stability can be easily designed
on the basis of the reduced curves of r;k and -I-. - By analyzing the current
amplification factor K.;., power amplification factor Kp, and voltage-
a.mplification fact,?r it can, be f--und that Smaks !::;: 0. 6-0. 7 which
corresponds to the optimi--m conditi-:,ns for Ki, Kp, and KL-. Transistor
rejection can be eas-I'lly done on the basis Lf fcur--vr,'.--A meas-,~,--renaents.
M. S. V.
Card 212
-~-77
c t ion ot~'
Of Se:-lico!-1,c~or Triodes +',le :Let'.od jul--ct on
te t i cs y vYsol-Och-,st otny--h
triodov Po ;~erekhodnykh
PEF,T -)!)--T
7 ~T
TT-
ir
0
L
AE S T R!, C T p j~ 1, 0 f 0 d o determinJn.-- tl-.e
a.-. function 'of t.`--O jun-ction-
c t e c S o C e i c 0? 1 d I:c t 0 rtriodes, directly
Fo r t 0 calculation of the
i cy 1 of' the plaase 2hift of t,,r. cutoff
bind 3;' t'- hi~;h-freqlucncy parameters of
t~A- v!' '.":-.t triole circuit diagram ro,7,ograjns ~Ipre
cam,i;iled in accordinq, to- the data obtained.
In order to 4111-strate the met'nod advanced ir this jaoer
U-e results o"f t,ic- investi,--ntion of a Cl,l)--t--iode are
Car,! 1 12 1)!' t 11,;0 T ~ , I .
A of 4-c. v:,i*,;(.,; )t, ~ Lk fc,