SCIENTIFIC ABSTRACT BAGARYATSKIY, B. A. - BAGARYATSKIY, Y. A.

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• Collection: Scientific Abstracts
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• Release Decision: RIF
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• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

/V
AUTHOR: Bagaryatskiy, B.A. 49-4-18/23
TITLE: Certain data on the distribution of energy in the infrared
spectrum of the Aurorae Borealio (NekotorNe dannyye o
raspredelenii energii v infrakrasnom spektre Polyarnykh
Giyaniy).
PERIODICAL: Izvestiya Akademii Nauk SSSR, Seriya Geofizi3heskaya,
1957, No.4, pp.540-542 (USSR)
ABSTRACT: The results are described of measurements of the relative
intensities of infrared emissions in the 8000 to 10 000
range in two spectra of the Aurora Borealis which were
obtained in March, 1956 by means of a diffraction spectro-
graph for an exposure time of four hours. The calculation
of the intensities was carried out for the band of the
first negative nitrogen system, X = 3914 R and X = 4278
which were photographed simultaneously with second order
infrared emissions. The aim of the measurements was to
obtain approximate information on the intensity ratios.
Therefore, as a photographic standard the spectrum of the
Moon was used since during the period of the measurements
the Lloon was full. The results are entered in a table,
p.542 and in the graphs, Fig.l. The results permit a
Card 1/2 rough evaluation of the integral intensity of the infrared

U [A K -S K
AU!.r!HOR, Bagaryatskiy, B. A. 49-11-11/12
TITLE: Work of Soviet Scientists Relating to the Illumination of
the Night Sky and the Aurora Borealis. (Raboty Sovetskikh
uchenykh po ovetimosti nochnogo neba i Polyarnykh
Siyaniy).
PERIODICAL: Izvestiya Akademii Nauk SSSR, Seriya Geofizicheskayz,
1957, No.11, pp.1410-1417 (USSR)
ABSTRACT: This is a very brief review of pre-war as well as post-war
work in this field and the author limits himself predominant-
ly to outlining the subject matter of the individual work
concerned and giving the respective references. At the
end of the review the author also mentions work relating
to instrumentation in this field. A. I. Lebedinskiy, . .
designed in 1948 the first photo-camera with a spherical
mirror which was described in a paper in 1955 (Ref 116);
at present improved versions of this camera (C-1806) are
fitted in the stations of the Chief Directorate of the
Hydrometeorological Services (Glavnogo Upravleniya
GidrometsluzhbA of the Chief Directorate for the -Iqovthern
Sea Passage (Glavnogo Upravleniya Severnogo Morskogo'puti)
and other establishments which, from July 1, 1957 onwards,
Card 1/2 coxried out work in accordance with the I.G.Y. programme.

49-11-11/.12
Work of. Soviet Scientists Relating to the Illumination of
the Night
Ski and the Aurora Borealis.
The State Optical Institute (GoBudarstvennyy Opticheskiy
Institut) is perfecting apparatus for spectroscopic
investigations; they developed not only terrestrial
spectrographs (Ref.117) but also diffraction spectrographs
which are unique as regards dispersion and resolution
abilit These spectrographs (Series cn -48, ch -49,
";~o
cn-50 are beginning to be used for regular service in
work scheduled for the International Geophysical Year.
The author emphasizes the enormous organizational effort
which was necessary for preparing the investigations
scheduled for the I.G.Y.; observations on the emission
of the upper atmosphere are carried out at individual
stations and in a whole network of stations. The network
encompasses in longitude the most interesting points
relating to the Aurora Borealis, namely, from Murmansk
up to the Mysa Shmidta and in the meridional direction
from Murmansk down to astronomical observatories in the
Card 2/2 South.
There are 118 references, Ill of which are Slavic.
ASSOCIATION: Ac.Sc. U.S.S.R. Institute of Physics of the
Atmosphere.
(Akademiya Nauk SSSR, Institut Fizikl Atmosfery).
AVAILABLE: Library of Congress.

.BAGARYATSKIY, B.A.
Ametion of the surorial proton disiribution on zenIth angles,
.Astron, shur. 35 uo'3:493 NY-Je 158, ~(XIU- lIt6)
ZL;0ras) (cosmic physics)

A4THOR-
Bagaryatakiy, B. A. SOV/53-65-4-4/13
---------------
TITLE:
Hydrogen Emission in the Spectra of the
Polar Lights (Vodorod-

naya emissiya v spektrakh polyarnykh
siyaniy)
PERIODICAL:
Uspekhi fizicheskikh nauk, 1958, Vol 65,
Nr 4,

pp 631 - 664 (USSR)
ABSTRACT:
The discovery of the double
displacement of the hydrogen

lines in the spectra of the polar
lights is a first class

event for geophysics, heliophysics,
and astronomy. It proves

the presence of a corpuscular stream
moving towards the earth

which predominantly consists of
electrorBand protons. The

investigation of the spectra of the
polar lights gives in-

formation about the interaction of this
corpuscular stream

with the outer terrestrial atmosphere. In
the present paper

the author first discusses some spectrograms
(Figs 1,2) and

gives a comprehensive list of the known data on
hydrogen

lines from various observations of polar lights.
Mainly non-

Soviet sources are considered (Meinal(Meynel),
Vegard, Petrie

et al.) Among the Russian research Nvorkers
above all the work

and the experimental data by Gallperin
(Murmansk, USSR, 1956/58)
Card 1/3
and isayev (Murmansk, 1956)
are discussed in great detail.

Hydrogen Emission in the Spectra of the Polar Lights
SOV/53-65-4-4/13
Some results are as follows (velocities in km/sea):
Gallperin 1956 H a 7A 300 40A 1850 51, 250
8R 350 431 1050 81' 350
0 400 451 2050 71 300
Gallperin 1957 Ha 9R 400 36R 1700 7R 300
H 6,5K 400 33R 2000 5R 300
HP 35 1 250 23R 1600 7R 500
1
The values of the first column concern the displacement of
the maximum and the proton velocity in the maximum; the values
of the second column concern the greatest widening in the
violet part and the highest velocity of approximation; the
values of the third column give the greatest widening in
the red range and the highest withdrawal velocity. Further-
more papers and results by I.S.Shklovskiy (in great detail),
Pikellner, Mitra, Dzhordfto, Bagaryatskiy and Mustell are
discussed. (all of them from the USSR). Finally the author
expresses his opinion that in the plasma moving towards
the earth not only protons and electrons but also helium
Card 2/3 ions are to be found; the most important problem in new

llydrogen Emission in the Spectra of the Polar Lights
SOV153-65-4-4113
research workAs to find He-lines in the spectrum of the
polar lights. To this in a footnote is added that a helium
resonance line was found (X - 10830 1) in the spectrum of
the latitudinal aurora on February 10 - 11, 1958. The
discovery
was made by Mironov, Prokudina and Shefov at the Stantsiya
Institute, fiziki atmosfery (Station of the Institute of
Atmospheric Physics )(Ref 39). The station is situated at
Zvenigorod. There are 22 figures, 5 tables, and 39 references,
11 of which are Soviet.
Card 3/3

SOV/49-59-6-7/2-1
AUTHOR: Bagaryatskiyj B. A.
TITILE: On. the Doppler Contours and Curves of the
Distribiition of
Luminosity of Hydrogen in Aurora Borealis
0
PERIODICAL: Izvestiya Akademii nauk SSSR, Seriya
geofizicheskaya,
1959, Nr 6, pp 858-864 (USSR)
ABSTRACT: A homogeneous atmosphere is considered, the top of
iv"'-ich
receives a stream of protons, having a velocity u 0 . The
function N(Q, T) describes the stream at a point in space
(G - angle of zenith, 9 - azimuth) i.e. it represents
the number of protons falling on 1 c~~ durin- 1 see. The
0 U
path of a proton in the airl so I is described by the
normal conditions if the initial velocity is u 0 . Then
the lower limit of proton penetration into the atmosDhere
at 9 =;O is ~ 0 = S0 . If r =-s 0 - s is the distance
to the end of the proton's path and u(r) - its velocity at
a given point, then Eqs (1) and (2) are obtained. If the
Card 1/3

SOV/49-59-6-7/21
On the Doppler Contours and Curves of the Distribution of
Luminos-
Auivra Bor a-is
ity of Hydrogen in Z
function Q*(r) Q(~, 9) is introduced, which represents
the number of protons H., (or H, I H Y etc) then H a
emitted by one proton can be calculated from Ea (a) for the
vertical thickness and the stream of Protons on the horizon-
tal level can be determined from Eq (b). The number of pro-
tons in a given layer is calculated from Eq (3) and the dis-
tribution of luminosity at height h from Eq (4). If the
C~
argument r is considered instead of u . the formulae
(5) to (?) can be derived and Eq (3) writte'n as Eq or
the luminosity of emission defined from Eq (9). The protons
in the trajectory can be considered as the source of emiss-
ion. Then for y, 'Ol +-N" a;z~~ 10- cm (4)
The coefficient oLl has been calculated theoretically by
Bates (Ref 5) and its order of mai~nitude is not subject
to doubt. The coefficient u~ could, upvto now, be
estimated only very approxima ely, The alue of CX3 is
consistent %Ath that given by Faire et al.. (Ref 7). In
the first approximation the set of reactions given by
EqS (1) to (4) is consiAered as a closed sys-11-em which sets
up the ion balance. In this casel the equilibrium concen-
tration of the ionic components may be written in the form
given by Eqs (5) to (8), in which the concentration of
the corresponding component is given in the square brackets
and J is the rate of ionization at a given level in the
atmosphere. For a given ionized component X the
Card 2/5 quantity J can, in principle, be determ-1-ted from the
Ll(

6 6 5 7 7
On the Effective Recombination Coefficient in the Ionosphere
relation given by Ea (9), where cr is the effective
photoion-ization crogs-section for pho-,~ons with energy h;v
and S is the flux of these photons at the Si,.7e.n 11--vel
in the atmosphere. In practice, all the t-hree
in Eq (9) are not kno%-n sufficiently accurately and J is
usually determined from ionos-Dheric data. The coefficient
J describes the loss of electrons associated with pro-
cesses (2)-(4). It should not be identified with the
recombination coefficient. The quantity J is related to
the effective recombination coefficien-~ lrxeff by Eq (10).
The coefficient K is not proportional e and,, conse-
uently, the effective recombination t.-I Ueff depends on
ej . If in Eqs ( 54')-(8) J9 al 9 Lx2 -and cc~; are Imown,
the
r
-maining quantities may be f6und, namely, the coeffi-
C3
cient, K and the equilibrium concentrations of 0+, NO+
and e. The electron concentration Is given by Eq (11).
Solution of Eq (11) gives the general equation for the
electron concentration given by Ea (1-2). It d,s shown thaz
the [N21 concentration is a parauidter which deterrnine3 the
Card 3/5 L

66577
SO V/4 01 -5-9, - 91 -'7/2 5
On the Effective Recombination Coefficient in the ionosphere
possible change in the character of the recombination with
altitude. It is suggested that there is some doubt as to
whether the set of reactions given by Eas (1)-(4) is
cQppkete. It is further sug6ested that'-apparently it is
n,ocessary to estimate the effect of at least the following
processes; 1) photoionization Of N2 with subsequent very
fast dissociative recombination of N~; 2) charge exchange
of 0+ with N2, 02 and N respectively; 3) exchange
reaction between * and 0 (analogous to reaction (3));
4) formation of negative ions. Although reactions between
0
neutral components do not affect directly the ion balance,
they must also be taken into accoul-it in the case when they
lead to an appreciable change in the concentration of
some of the components. Apparently, conlrective processes
(Ref 8) also play an important role in setting up the ion
balance in the F2-layer. 2mie aie 8 references, 2 of which
Card 4/5 are Soviet and 6 English. ,r

6657?
... SOV/49-59-9-7/25
On the Effective Recombination Coefficient in the
Ionosphere
ASSOCIATION: Akademiya, nauk SSSR. Institut fiziki
atmosfery
(AS USSP,, Institute of Physics of the
Atmosphere) V~
SUBMITTED: December 20, 1958
Card 5/5

30)
AUTHORS: Bagaryatskiy,B.A., and Gallperin,Yu.I.
SOV/33-36-1-28/31
TITLE: On Hydrogen Line Profiles in the Spectra of Aurorae
PERIODICAL: Astronomicheskiy zhurnal, 1959,V01 -',6,Nr 1,pp
192-193 (USSR)
A13STPACT: In the present short note the aathors compare
their theoretical
calculations with the averaged hydrogen emission profile
observed in aurorae.
There are 7 references, 3 of which are Soviet, and 4
American.
ASSOCIATION:Institut fiziki atmosfery Akademii nauk SSSR
(Institute of
Atmospheric Physics of the AS USSR)
SUBMITTED: September 12, 1958
Card 1/1

BAGARYATSKIY, B.A., kand.fixiko-matem.neuk. otv.red.;
MIDSHTM. Ya.I.,
1, Te.V.. tekhn.red.
[Auroral investigations; oollection of articles]
Iseledovaniia
poli.Amykh silanil; sbornik statel. IT razdal
programmy MG
(pollarn.ve ellanlis i evachanis nochnogo nebal"
Moskva& No*49
1960. 77 p. (KMA 14:1)
1. Akademiya zxauk SSSR. Mezbduvedometvennyy komitat
po provedenlyn
Mezhdunarodnogo geofisicheekogo gode.
(Auroras) (Night sky)

20983
118111) (260S/ 2.7,DS) L~t, I / 6~~ S/058/61/000/004/038/042
9, ~.300 A001/A101
AUIHOR: Bagaryatskiy, B.A,
TITIE: Some results of radar studies of auroras
PERIODICAL: Referativnyy zhurnal. Fizika, no 4, 1961, 419,
abstract 4Zh622
("Spektr. elektrofotometr. i radiolokats. issled. polyarn.
siyaniy
i svecheniya noohnogo neba!', no 2-3, Moscow, AN SSSR, 196o,
7-14,
Engl. summary)
TEXT: This is a survey,of the present state of aurora radar
studies. The
principal problems of radio echo from aurora and physical
nature of.aurora are
briefly discussed. It is mentioned that av-rage distance of
radio echoes amounts
to 600 - 900 W;' this is explained by the --Aering effect of'
the magnetic field
on auroral ionization in the aurora zones. Directions of
incidence of radio
echoes correlate better with magnetiC field characteristics at
the Earthts sur-
face than with the geomagnetic field of the dipole located in
the Earth's center.
The course of excessive auroral ionization is the same in both
Earth's hemispheres,
Diurnal course of radio echoes is such that very few daily
echoes are observed in
Card 1/2

20983
Some result$ of radar studies of auroras
S/Q58/61/000/004/038/042
A001/A101
comparison with the nightly ones. There is an unquestionable
general correlation
between visual auroras and radio echoes, but no particular
Identification was ob-
served. Radio echoes originate from the great number of Ionized
non-homogeneities
whose dimensions are comparable with the wavelength. It is
pointed out that not
all observed phenomena can be at present explained, and that
th%ere is as yet no
complete theoty of radio echoes from aurora, There are 40
references.
V, Naslednik
[Abstracter's note: Complete translation.]
Card 2/2

BAGARYATSKIY D kand. fiz..-matem.nank. otv. red.! FELIDSHTMI
Yaj.,
*A.
~e .; a-UT, V.G., to-khn. red.
[Auroras and airglowl Poliarriye siianiia i svechenie
nochnogo neba;
sborna, statei. IV razdel programay MGG. Moskva, Izd-vo
Akad.nak
SSSR. No.7. 1961. 88 p. (MM 14:12)
1. Akademiya naulk SSSR. Mezbduvedomstvemnyy komitet po
provedeniyu
Mezhdunarodnogo geofizichenkogo goda.
(AuroTas)

SIY SHA I V.I.Ltranslator); BAGARYATSKIY, B..A.,
red.; RIJSKOL, Ye.L.,
red.; PANTAYEVA, DZHATVTE-VAM FpKh.9 tekhn. red.
[Experimental investigation of space near tho
earth3 Eksperi-
mentallnoe issledovanie okolozemnogo kosmichaskogo
prostran-
stva. Moskva, Izd-vo inostr. lit-ryp 3951. 277 p.
Translated from the English. (M]= 15-./+)
(Solar system)

BAGARYATSKIY, B.A.
Discussion of the results of photoelectric
measurements of the co:;
tinuum of the airglow. Izv. AN SSSR. Ser. geofiz.
no.12:1901-1902
D 161. (MIRA 14-.12)
(Night sky)

91K910
AUTHOR:
TITLE:
PERIODICAL:
S/053j61/073/002/CX;, 1/005
B1 1 7/B21 2
Aagaryqtskiyj_B. A._
Radar-reflections by polar aurora
Uspekhi fizicheskikh nauk, v. 73, no~ 2, 1961, 197-241
TEXT: This is a survey of technical literature which has been
published
about radar studies of polar aurora. For the first time
reflections of
radio waves in the meterband have been observed from the
ionosphere, which
show the same characteristics as polar aurora zones, shortly
before WWII.
Much attention has been paid to radar investigations of polar
aurora since
1947. The program of the International Geophysical Year also
provided for
studies of radar reflections of polar aurora. These
phenomena'have been ob-
served in numerous countries and also in the USSR; here,
studies of Ya. G.
Birfelld are especially stressed. The present survey mainly
deals with ma-
terial published be-fore the middle of 1960. A large number of
results is
not included, because they have been evaluated and published~
ChEqpter I deals
with basic concepte of radio reflections of polar Aurora. The
author points
out that "reflections by polar aurora" is not an exact
physical term, it is
Card 1/4

S/053/61/073/002/00'1!/003
Radar-reflections by ... B117/B212
used for convenience, and tradition only and one has to see in
it reflecthns

of regions with higher ionization, which are
related to the polar aurora

zones. Now follows an enumeration of
new findings, based on &available ma-
'

terial, about -the structure of the ionosphe
re and the possible radio re.-

flection mechanisms. The
following problems are discussed in chapter I:

a) Range of
reflections; b~ type of reflectionsi c) characteristics with

respect to polar aurora; d) duration of reflections; e) spatial
distribution

of reflection zones; f) response of reflections; g)
comparison of reflection

zones with visual properties of the
structure of polar aurora; h) altitude

of reflections. Chapter
II 6f this survey deals with the change of radio

reflections in
the day time and at night and their correlation with geomag-

netic activities. On the basis of the material available, it
can be estab-

lished that there is a definite dependence between
magnetic disturbances and

the occurrence of anomalies in the
polar ionosphere, which show up as auro-

ral radio reflections.
It can be assumad that the ionosphere, due to

corpuscular
currents does obtain a Lmber of properties in the polar aurora

zone and also the region near the pole, which are missing if
undisturbed and

which have not been observed on other latitudes.
Chapter III of this sur-

vey has been devoted to the relation of
radio reflections and various

Card 2/4

S/05 61/073/002/001/003
Radar-reflections by ... B117YB212
peculiarities of the sporadic ionization near polar aurora
zones. A consid-
erable difference between sporadic ionization in medium
latitudes and aurc-
ral sporadic ionization has been observed, this is especially
characteristic
for investigations of the far-range propagation of ultra short
waves in the
ionosphere. Chapter IV brings the geometry of reflections and
chapter V the
electron concentration. Concluding the author notes that the
experimental
data, which are mentioned in this paper, have been obtained
during observa-
tions of radio reflections of polar aurora in the ultra short
wave rarge.
Most of the observation materials have been obtained by applying
relatively
simple radar techniques and methods. It was possible to
establish various
basic characteristics of the phenomena observed and also their
position and
the role which they played among other geophysical processes in
high alti-
tudes. Due to incomplete technical devices, it is difficult to
establish
more accurate charabteristies and physical parameters, and the
development
of special methods and more perfected technical instruments iB
necessary.
The author is also pointing out the necessity of forming a clear
theory or a
suited working hypothesis. In the beginning of radio
investigations of
polar aurora the geometric reflection scheme developed by
Chapman was used
Card 3/4

S/053/61/073/002/001/003
Radar-reflections by ... B117/B212
as theoretical basis for the procedure. The steady increase
of evaluated
experimental data makes a theory more and more necessary,
which could ex-
plain the occurrence of radio wave reflections from regions
with an anom-
alously increased ionization in polar regions from a
physical point of view.
The number of observation stations which will be reduced
after the IGY,
could be compensated by application of new instruments and
special methods.
The following persons are mentioned: Ya. L. "'part, F. P.
Dobryakova,
E. F. Chudesenko, B. S. Shapiro, X. I. Gringauz, V. N.
Dovger, A. P.
Nikollskiy, V. I. Pogorelov, V. I. Yarin, B. Ye, Bryunelli,
S, F. Sandulerkq
Ya. I. Felldshteyn, R. A, Zevakina, Z. Ts. Rappoport, V. M.
Driatskiy,
A. S. Besprozvannaya, F. Ya. Zaborshchikova, N. I.
Fedyakina, A. A. Aynberg,
-A.-,.I. Grachev. There are 25 figures, 2 tables, and 86
references:
26 Soviet-bloc.
Card 4/4

KRASOVSKIY, V.I., doktor fiz.-matem. nauk, otv.
red.; 2AGARYATISM,
B.A., kand. fiz.-matem. nauk, otv. red.;
ZHITHIKOVA, S.A.,
red.; DOROKHINA, I.N., tekhn. red.; MAnUKHINA, L.I.,
tekhn. red.
[Collection of articles of t1le Intergoverrmental
Comittee
for the Execution of the International Geophysical
Year)
Sbornik statei Mezhduvedomstvennogo komiteta po
provedeniiu
Mezhdunarodnogo geofizicheskogo goda. Moskva,
Izd-vo AN
SSSR. No.-10. 1963. 153 p. (MIRA 17:2),
1. Akadeniya nauk SSSR. Mezbduvedomstvennyy komitet
po pro-
vedeniyu Mezhdunarodnogo geofizicheskogo goda. IV
razdel prog-
rammy MGG: Polyarnyye siyaniya. i svecheniye
nochnogo neba.

FELIDSHTEYN, Yakov Isaakovich; BA PM7__B.A.., kand.
fiz.-
mat. nauk, otv. red.; SIHCHUKINA, Ye.P., red. izd-va;
POLYAKOVA, T.V., tekhn. red.
[Collection of articles of the Intergovernmental
Committee
for the Excecution of the International Geophysical
Year]
Sbornik statei Mezhduvedomstvennogo komiteta po
provedenii:u.
Mezhdunarodnogo geofizicheskogo goda. Moskva, Izd-vo
AN SSSR.
No.5.[Space-time distribution of magnetic activity at
high
latitudes of the northern hemisphere] Prostranstvenno-
vremennoe raspredelenie magnitnoi aktivnostj v
vysokikh shi-
rotakh severnogo polushariia. 1963. 63 p. (MIRA 17:2)
1. Akadertlya nauk SM. Mezhduvedomqtvenrjyy komitet
po pro-
vedeniyu Mezhdunardnogo geofizicheskogo gods. III
razdel prog-
rammy MGG. Geomagnetizm i zemnye toki.

CC-NR, AT6026625 SOURCE CODE: UR/0000/66/000/000/0079/0088
AUT11011: Bagaryatskly, B. A.; Pei dshteyn, Ya. 1.
ORG: none
TITLE: Auroral radar echo and structure of the polar current
vortex
SSR, [Cc Iskly Nid Y~Poflzfche VysokcehInAqjye'
SOURCE: AN S I i " IYM!PY
issledoynnWa-~-c-,61asti geomagnettams. I
aerono~nQfflgh4atitude studies in poraspetism and
,aeronomy). Moscow, Izd-vo Nauka, 1966, 79-88
TOPIC TAGS: radar echo, atmospheric Ionization, aurora, signal
scattering
ABSTRACT: Ilic physical theory of the so-called auroral radar
echoes from the ionosphere
of high latitudes in the 30-1000 Me range includes i;o-basic`
processes. The first concerns the
mechanism of reflection or scattering by means of which It Is
possible to explain the occurrenc4
of eeVo signals at these frequencies proceeding from the
permissible values of the electron
density in the regions of auroral Ionization. The second
question is associated with Interpret-
ing.*the characteristic space and time peculiarities inherent
to this type of reflection, The pres
,ent article is devoted to the second problem based on radar
investigations of ionization in the
polar-aurora regions In the Northern Hemisphere. The 19
stations involved In the hweBtiption

WM NR1 AT6026925
were divided into two groups, in each of which the statistical
characteristics of the observed
radar'echoes were substantially different. The statistical data
revealed that reflections from
regions close to the auroral zones occur with greatest
probability during those hourr. of the day
wheni. according to the theory of the polar current vortex, the
current density is maximal. A
leterpeak of reflections recorded at most middle-latitude
stations between 2400 and 0400 local
time,is accompanied in all cases, without exception, by a
decrease of the horizontal component
of the magnetic field. The first peak occurring between 1700
and 2100 hr Is characterized by
them development of a different type of magnetic activity. It
can be established that for stations
of the Jodrell Bank type, near where the constant field is not
disturbed by the presence of
anomalies, this activity Is associated with an increase of the
horizontal component. It is con-
clud~d that reflection from* the zone of polar auroras is an
effect which owes its pa' ftern of be-
havior to the development of the polar current vortex of a
magnetic storm. The frequency of
the. appearance of radar echoes depends on the conditions of
the occurrence, disappearance,
and'shift during the day of regions of high anomalous
ionization. Therefore, the presence of a
close relationship between magnetic disturbances and the
appearance of radar echoes should be
expected, and actually the time regularities of magnetic
activity -and auroral reflections occur
identically in basic features. The periods of maximal values of
the frequency of appearance of
radar echoes vary in relation to the geomagnetic latitude of
the station. A comparison of the
spiral distributions of magnetic activity with the
corresponding distributions of the auroral
ultrashort-wave reflections revealed that they practically-
coincided in the entire range of in-

AT'602692'&""~-'
aff6r.61 latfweg., 711a indicated that the penetration of
corpuscular fluxes Into the upper
layers. o4gw atmosphere has a direct and s1multancous effect both
on the occurrence of po-
wapeft allvity &W on Ow appearance of radar ultrashort-wave
reflectloas. Orig. art. has:
A
,NMCOM64,,17/ SUBMIiATE:2lApr66/ ORIGREF:008/ OTH REF: Oil

- IBAGARYATSKIY, B.A.; FEL'DSHTEYN, Ya.I.;
LEBEDINSKIY, A.I., doktor
fiz.-matem. nauk, otv. red.; MnYUTINA, Ye.N., red.
[Collection of articles] Sbornik statei. Moskva,
Nauka.
No.12. 1965. 56 p. (MIRA 18:4)
1. Akademiya nauk SSSR. Mezhduvedomstvennyy
geofizicheskiy
komitet. IV razdel programmy MGG. Polyarnyye
siyaniya.

BAGARYATSlaY, _Y1J. A.
UW/PhyBics Jun 48
Crystals - Structure
Crystals - Measurements
"Cameras for X-PAY Structure Analysis of Mono-
crystals," Ya. A. Bagaryatskiy, M. M. Unamakly, In
of Phys, Moscow Order of ranin State TJ Iment M. V.
Iomonosor, 10 pp
"Zavod Lab" Vol XI7, No 6
PA 14/49 -1108
Describes (1) universal X-ray camera f-.)r taking
rotation X-ray photographs; (2) camera for de-
termining Identity periods of a crystal. Photo-
graphs and diagrams.
dM 14/49T108

ad a /~ R M / SATI , Y
BAGA+TSKIY, P. A.
Rentgenograficheskoe issledovanie stareniia aliuminievykh
splavov. 1. Primenenie
m6nokhromaticheskikh rentgenovykh luchei dlia izucheniia
strActury ostarenrykh
splavov. (Zhurnal tekhnicheskoi fizikij 1948, v.18, no.6,
p.1127-830. plate).
Includes bibliography.
Title tr.: X-ray investigation of the ageing of aluminum
alloys. 1. Use of monochro-
matic X-ray for the inve,,tigation of the structure of aged
alloys.
For abstract see Index Aeronauticus,,1951, v.7. no.7, no.11,
p.j65
0l.z4F 1948
SO: Aeronautical Sciences and Aviation in the Soviet Union,
Library of
Congress, 1955.

V L
D"ofmiudess of dw orientation of coarse single cryetals.
Vu. A,linstsid) and B. V. KolontsovA Moscow State
11"Iv.). 0"dshoys Lab. 15, l(KI.2-710949); cf. C.A.
43. 491N.-lUck-re6ection inethods for the ork-ntatim of
kurfal fuunuffyAtali were droctibril toy E'blrio and
1-*Onrn-
Ix-tg (Z. Kriji. 89, 525 -8(IJXM) And Cdvinitigvf (Oid, 9 1.
424-t209M. The back-fellec-immi cutulitims fee struc.
tural planes with W above 101) are d6cussal and tabulattA
for crystals of Cu. Fe. Ni, At, and their siloy%. and the
wave
lengths nkvtt suitable fit white x-radiistion indiral"l; the
miumnittams ihmiSh Lindenumn windows afe partiv imt
favorablecuoulph. Thrictimigfltitwr.%vncroiCuiiii,!Ztiiti
W 1. radiation must be considered: (or Fe ctystak the Ar I
rudiation is particularly suitable if the voltage is held
lwhm
'M Irv. and the short waves are filtered away by Al foil (10
to 20 p thick). The app. used was a r4untmon fxuc
""Met's '9 , with a gonlommer head ftw precisit"i Adj" -
11trill.11 Mpl.l.
by bAck reflection is drumstralml for (he fjm~t grneral'..4-
in the gnamo-stereagraphic pro~-ction, and its transImins-
tion to oriented pooitious of the crysiallographic axes.
For the detn. of the indrus of the %lx)ts the Crrininjrr by-
bola Ill f I in imnetric Imetal cr%~tals.
a use u
ml and face-renteiml lAttice, 6 *'%tand-
ard;',strfropsms me given for the dirmtiou%
N (WWff protractor with 2M nim. diarn.). ThemientA.
tion of a polished Fe crystal is given as an example for the
practical use of The standard diagram. und the relations in
the stereogmphic pm*iim drumonstuted. For cipuls of
h"m symsortrY the oscillation mr1b,al is more vm%-rnirn%
than the standard woJection unribmis. W. 1-*.iivl

400 9094 00 0 * 0 4 0 0
.000000000 *9409060e*
a c 0 a IQ x L 2 0 a ru a I I vi
W A.0 )WO LfTlit
Aw.cf .of,
tax
Ion
10 x
ION
u an mill VUS4 libvx 304 41
AT
LITTI% cStalls
IRALTNAISIT13 U4042111 1VN9:MllTLPw I I
*03l ~.7

Ito.,
-sqdvivOICKId pul SupAup 7D"- xq

000
a- qmpp I-A-5 ?3)10"
-O
IIPWIS 193SA- 10 -111YIP"Ol jol

too
48412
.
rzatirva aMpgjipp Atu.y pgdol" Alam SN143PU

ck

j) VAMOM"V7 04VVPOOOZ
-A A-)31

.
slo.-gril *V,nA (,uris%nH al)
'A PUU 11
JO) "a"D

woo

00-

c00

ff 00

C- D4 A

-r-k -A -1-r
-f Bill 43-10,14-W, 7-

K ft
n it 01-6
1
(,.w
0 0
6
0
0
0

0
0 08
0
o 0
o
'
0

-6 a a O
s 0 A
a as a a

'A DWA-b"Id X-RAY Mr-Olnealor. yu-LAWKWAII.-
%ky.aasl F. V. Kokmasova Jc-rcW. Lab.. 19W. Ilk (8). RM-
961),--fin Itus"n). 11w momschromattir is intended prin.
dpally f(w mingle-Mvtal work. fior which flat monm4mmustocs
(which j(h-P a. beam) have ho little ikitennity. Asmalloperturc
(11-2-) is uOrA MW the geometrical arrangement allows
the wfw& fwall PIKA to be - viewed ", Focusing is neconarily
imprriect, but this is immaterial fcw many splisi. wheir the
van requirement In to mravve bwkimmind weltering. T'he
J= ( the di.4 bes. is either w1usm or in the form of a
narnm bne, quarm or kip" was toed, the a doublet wax not
resolved. Formula od a graph for calcukting geometrical
temotiti involved an gixen. The adaptation of ordmar~
r4je-crystal tam"sa for uw wM this nummehromator is
sight line,,
A (Iss an a gun) . together with the slejOe coffimator
n6A.. slmi- -k4nas %be mean dirscUon of the twom. (Albs.
from Fulmer Pronarrh Institute Translation No. 33.)
- R. W. VI

k~,Tj
144
.81rodurml Chartres In Op Astina of an Al-N-1111c Alloy.
',I. it. 111pittypf.k4v Fnil.;. IP:P 20. (4).
it; i 'i~~arrh hO, blinxIldim.
V
Thr ti-iriltT.f, allm. %I Of %U; "'Ill arl"'11111A
lit 01 %lill lilt: 1-1 11.11, Ict-JA I'l limil AM-%. if JI'll
I%et-iiinasi t%j, (imi, *-,I*-,. A,.). x.##%.v a
file l'-fliftiv M Of Mg In-% pillilit'l ilk"
01.14ACO) ~Ijvlov th.it: (1) after it 21-4 V.
arfil Ailvr ap-64, at :Rkl, all.1 ptvillitw. .4 q flew
plimm, its Ifilli " I.. MAI 4.1 .%1001'. IS Idjoele)
ml ",At IWl is Iii-ill 1-1PIAlkern Ill-, ilich;,41411111
oftililm
I.-tifeell tile Wit IV lot Oil. M W.IN7111. AIM I h., N phn-
I
(.,I W vr% fit alhigm 1.111- -.111 lesit im I mieflIA116.1ko
(if I lillam,.For.-Ahv.l: C.6-rM.
411 Mill.. 111AUR 11111101t,11111111 diflTAP10111 VffeeIA
Kill I.V
lay midl k6miliall-lim 3pl-mil". of it%",:
... 44"'llmil Imill .1; , (.it m%%,
Ill.- An, m".110-1 al-W
Oil." -f to- tyl- 101~1 if it'. rt,ilm-I flottil, r tile -10
"it.: (it) X-my tilicAngialfba fit the t,41isrAlIv ac-1
A% %%vll stol fhivw 44 fill, p1hei. 4'ell (,it 10.0111t)
1'r. At Ilk),
4tut fior IIA hr. lit l(NOA!.: 1-hem. 1-dierliA if
1111'.1,41 mle.
iltill"ovil"lid ifiPlifelout frolit hirmilimiq 'Aillt Ihf,
V-1114ot*v. lit of the I '%,., prim a it,,,
attlIll Ill the MIJUl FANIn. ~ 41) hlier AkMilllj fltr M111.
ni
it-, 1 V.. ifil,1111"liM.- difframi'lit I"llefliq
vir. WrIly defit .1-4 fnlius
A!;..qr *4466.0 A h.vir""Iml .4 ...-1 ............
d If I, th"i. Alt Ih- "Ats &~ gvimi.
710. I.S.O.T.

Probable meChanistru of martgusite decomposition. N*11.
A ' Ila ryalskil. DekladyAkad. Sauk S.S.S.R. 73. 1161 4
09.PrLA *tIntofeticalmudy in inade %if the orientation iv-
i4tion ill file rurbide phase and Ilia Strtimic in the rally
Mill"ofteltilwi-ing. Itinallown, hat a Clow velalloo exi~l.
IWl%%tvjl the ul. 411killihnilons lilt tile (IMI (.t .4-11
skille
and the (101) Idanc (it tuartensile. vkhru tile I likil
dilet-thin
In the venicuille cohickhrii with tile 11211 direction in
tile
m4riensite. The rclattion agrees with that finind by calki.
'11w rkirresilikinding mcchanitun of the niarlensite up
crineut.
ill- llaurfortuation *I low tempering lculp'l. il: (I I
-l"in.
ning" J nutilruslie oil (121) pLamrs by 14twk% oi thh-kness
duti)!7; (2) shift of the C atimis to file (winning planes;
(3) beicklinc of certain at. planes. This mechanism re,
quiref. movement of Fe alkinis of less than one at. spacing.
A similix mechanism explains the ppiu. of the second phase
i!i ill ralumin. Two-ilimen-vonsl x-ray diffraction effects
in
tt 11121 direction and one-dunctishnihIrfler1% lilt (I im
planes
of lite reciprocal lattice of niartrosilc shotild he
observrtl
duri ill letntsring at low trint1q. A. 0. Ouy

-
41
4W

LOW 1+;

U.S. S I.

crystals with. rnonochram~atic radalation al 10"VT
T-araparatux-es,

X-rry M tin-a-, cf si-rtcle nnrstads of' X~Cu and
a-Gu.--Vg

aa

r

*On fbi Question of the Mechanism ~f ib. necoulTindfinn

in AlloYs
I

and SW U. a a to "In Fi:ikil
I Y (,
[

IP51, - . . cas,an]. The ageing of Al

alloys at intermediate temp.
(150'-200'C.) results in the
,Jou~n'al of the Institute Of MOWS
formation of a metastable state where the lattice of the
"

Vol
21 Part 7
con-
precipitating phase and that of the solid soln. are
"
f
.
nnooft
t
and the strains set up result in the hardening of the
Mar. 1954. -
allay. In Al-Zn, Al-Ag, and Al-Cu-bTg alloys the motastabic

Properties of Alloys
precipitating phase is essentially the same as
the stablL
,
i
l
i
l
l1
h

-Cu
prec
tate, but
n A
a
ases are differeut;
oys the p
p

the lattice relationships are given for the Al-Cu-Blg Alloys

and show
linking along the (012) planeL of the solid mofo.

The" flrst" decompn.
c,fmaTtons1to(l00'~-lG0'C.) lathought,

to hivolva the formation of
motastable FbC and a theoretical

relationship is presented which
allows linking of t4r) strabuxt

FeC lattice along the (121) martennite
planes. Therelatioij.

ship is the same as that observed experimentally
for marteasi(v

decomposed at SWAM' C. and thus supports the
inotnatablo

linkod-pptn. theory. In Al alloye concentration of solift

atoms occurs before pptn., and it is considered important to

establish
whether this occurs in steels and other alloyR;

&*pproaches to the
problem are outlined. 36 ref. (Abstme"

from Fulmer Research Institute
Translation No. 45).--.-D. M. 11.

Pt
POW DIFUGWOMMOIS is as I ro"Ald X-Rapa.
V%L~A_Jj%f&ry-#AAy,(U#pfAi Ax. Nook, 1931. % (2), 2W.-
.95).-IlnHusmian). A review c4ommimw umth" intim-
Wtuxtrimmoidn* of X-ram IThe data ixt llinra' metin-1
am Iwwwpunim In the folittwitilt abolmi.) All4millim in
call"I to tile. advasklAW "( ushlg A (64491Y beft'i) F111414~'
thromator with Ow w8wting pWm at an w*6 to the surWv.
7Uounfirmthelakywingadrant": (i)cryxW-JWmdW&n
in larlp, aLlowing a hop sprcis"-film dm"nm (tmmmawm
method) asW tbadw high madn.; (ii) filme mu be placed
.L the b~. again au~ nods ; (iii) own*--cry*W dim.
lance usall, giv* good ingenal's ' I%*' mrUsod is specisHY
"Comm,ndAl for -Min-dw 0( . (Ab.
strucWd from Fulmer Bra, rch I-wilut, No. 34.1
-P- W. C.
~-A

IR ~L
Ost$ 1. It .0 1, t? is W 0 11 A 11 V 31 Is X ft V a 0 4 41
,A IN W-l! Q-9 I A.
All
00 A' .-- 0, 00
N--X 11M
00. A 5"
got 00
6370. 1
001 miogution or the Inteneity of diffuse 6cattering of
X-rays,for .00
loss 6991m alloys. YU. A, Balarya okki SM, 77 (ND. 1) ~00
Doklo AMC IkUk, &
45-8 (1951) In Ruslifil.- .00
TtA probles; Is oonaMerod in 1 dimension. A fbreiob atom occurs
(pp rhmo 1 -00
almo 419plac*d) at IrreRular intervals in a rovular chain, Thm
mnntterslI goo
intensity is sonde up of 3 terms, due to the regular array of
atomm, due
goo to the errors only and the arose term. Of these only the
second has a value
e at points other then reciprocal lattice points. FbIlming
Merl= (Abittr.
0. 6159 (195.3)) the diffuse scattering Is calculated for a
(Wissinn Aintribution
:
0 0 of the dintano9a between errors. From publimbM Antn the
diffuse scattering goo
0 in AI-Cu alloys Is drawn out for 3 different degrees of
serregation.
so gi A. T- I.IncKav
see
ir,Ze
00
.$..it A, WITALLUPWAL U19RATURE CLIOUIRKATION -Z. ts 00
lit 81
I"
.1. CON. 0-4 3, 111 43K CAN III
U U AT -0 1 1--- V- 1 4 V, ;-''t ~,~ L I a 04 0 Q I W AI1.3
I : V rp 0 .01 ; ; , T ; 1. a x a it . -
0 0 0 0 9~0 41 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
140, 0 0 0 0 0 0 0 0 0 0 * 0 0 0 0 0 0 0 510 0 q 0 0 0 0 ; Z

-16
*X-fty JEWS on 00 AXIAU-01 the Ah1W 44%)
Yu. A'auk
Our
8.8.8.R., 1951, 0~-
Rtmisn]. Data on(
the diffuse scattering of X.-ya by AI-4% Cu allo), enable
a number r4 questious to be answered. Onamonochronintlo
holograph of' the naturally aged alloy them am no two.
S
tImeWonal diffraction spots with 30. and 03. indexes (in the
co-ordivatee of the reciprocal Isitice of the solid soln.; the.
full stop replaces too non-integml third index jej, but spots
with 11. indeires are present; hence the two-dimemsionAl 1
diffraction at this %tap of the I '
aping in not prodived by thin
layers of the W-CuAl, phase, This agre leZakharova's
conclusions (ibid., 1050, 70, 55; X.A., 1% 03) for AI-2%
Cu alloy. The observed asymmetric distribution of the',
Intensity of two-dimemional diffraction agrees well with
B.'s cadculationo (ibid.. (1), 45; preceding abstract) bawl
on the hypotheals that Cu atoms collect in regions contg,
2-3 atondo layorB (001), with mine change
In interplanar
distances. It does no4 support the suggestion that the
displacement of neighbouring planes plays the predominant
part. The apparent discrepancy between them conclusions
and the resalta of Buinor and Jerinntan (ibid., 1950, 74,
707.929), who obwrvM the same formations in both naturally
and artiticially aged alloys, to fliftt nglons of Jo-j ()u con.
centration were eichtd out, so that the parts contg.
collections
of Cu atoms and the strained regions of solid solo. Around
them r isolated; the atoms in them regions rearratiqla
=mvNpa`to fam. A stable phase, pr6ably MAIj. Gniniers
exp4itation (Memm, 1940, 11, 305) for the forniation of
& JkliperstrUCtUrC At A OCrtAlo. Otago Of hMt-tVCMtR1Wt is not
oonsidered aLtWotiory; B. suggests that the regions with
the superstructure consist of 12 atomic layers (001), and the
concentration of Cu atome in them corresponds to the compri.
CuAl, -, layers Noe. 2. 6. And 10 consist wholly of Ci]i
atoins,
0. 4, S, and 12 only of Al atoms, and the odd 143-Ors contain
-an arerago of 118 Ca and 516 A] atoms. This structure
itaidly rearranges to the 0'-phaw, which (ornis lit In
"hick interlinked. with t-4 lattice of the solid soln. During
the rowth of the 0'-plinso nuclei, c falls from 6-06 to 5-8
In tTo formation of 0 or W phase nuclei, a considerable
t-incroaso in the elastic energy of the lattice is noom-tary,
and
the formation of the bonds at one L%tticc point cau" strain
'in the surrounding rrgiong, although this is reduced bi
directed diffusion of Cu atoms to this point. Hence ~s
regards energy, structures in which the Cu atoms collect in
2-3 atontiolayers aropreferabletotboac with the ui%x. number
of Cu-AI borida. At, higher temp. the Cu-Al bond Is wcalker
and the role of elastic energy is reduced, so that there arc
a large number of Co-Al bonds and a more even diistribution
;of On atonts throuchout the lattice. Tho medimnism of
natural ageing of M-Cu Alloy is thus determined by the
'arg iff~:n- in op. "tomio vol. of this solid scln. and the
tat g phase In AI-Cu-'Afg and A]-Ag nllf~vs the
Pri I ce I" .all v
d I Rp" ind the aping mechanism is essentivilk
differunt-G. V. E. T.
~s,

I A

cm
~ae -at-are of fomt-l an s~udaces of sted bfW-

-4 pi-zh- Z 17 1452
(--T-.- -~7 ~- IMl-
U S S R

13W* gave a bright oic-r Liyvr of F"W~ as, etchcd

htlqogr.-,pu5
rnid4le ront- d ~ ptu!~ 4 ~ud an m-

tcr'
61 1,;zc Wl . w)ul --in.

C) treatrd 1w 6 lv~ w MW ~t~d an
l
~
C
l

.
,~d -tt, 1.~- J ph- f F,-,W, -,d F-W,
t
e~
A
wonxly d,

-Aith a thwk miVi Lty,-f ,I Fc,% * 'ith i-tl-

ul 1;
11411muski-

77-
al
Mr;
A2--as -.4

-11echanism of ratural aging of aluminum alloys, Vu.A.

DAIady
bogar yatski
Akad, Xavk S.S.S.R. 97, M-432

~

mhesis tbat the Ist stages of natural
aging
(1952).-The hypi

arezussocd. with the ppra. of a phase intarazediate
bcoveen

the solid soln; and the - (Guinier, Metcux el Cor
phast

.0
OSI is 18, 209-1709-13)) and the theory that the 2nd phase is
Y

the one which ppta. origmally (Ceislet and Keller, C.A. 41,

76f) were
expernnentally checked and found lack-ting. Rdnt~

zenogratrig. U-en
%vith a motiochromatic light ou mono-

CrYAOIS or a 3% Cu-1X-,'/O Mg Al
Lifloy agid, for 3-3 ruin. at

M* showtil that spots rxrresponding to
the 2nd phase (Al:-
L
CuNlg)-did not-co"espond in their position.to
spots of the:

Zid plizie produced -by-natural-aginz;~ No particles of
the.-

ensional nuclei, are'
2nd ~Plv~ze, Eden in the shape of unid,M

th
produced bynatur-alagiag which lead tothe fortnationof e'.

Atoins ofCn
anti Afgas ren:

as of Cu And At tending to approach each other within
thi.!

snace lattice of a supersat td-soln, cannot-form.- the most

account
n ' 0
thermodynamically advantagm n
's T figur

M
Z
of the SIj tround ills! Atoms of the solid sol.. and

:7 T,
M
t, VIVI,
Iq
j ~A
.4 7
- _% '
.0 rtt? iintsoccur
4" `%,;;~-~224W
n65
e Corr 'Ity al atoia~
plants destroying tb ect oerioU
K
in V anes wit',iout causing any changes in th4
4~
014% these pL
--pas-ion so that the pliewimena of unklimensional diffracfion--.~'
calnWotmened _A:,AUIn_dJAtirTj_ W __aj pie,
ance W e pa ing
J. :'atoms -0 4
1. is prod-teed by Lh6e displactrawt-4 Itailing to strei-
T.
the iatlice and ehanyjts In mech. pr6pertics of the alloyt,14,
-i-These areas cannot be considered as those of the 2nd phr,~ei
-pondeAl
the), corre, to the prepptui atiast assacd; with-Abo.
r
'forniattion G? a vwy tylve of boud bew"a tho Atowl Ill
78PActlattke. 11:15"dog fivill the a)-Go. StIltetu natu
j aged to that Lf artificially aged alloy takes p1 Sh W.
new rearrangement of Cu and Al atoms Along
(010) planes, the mechanism of trauslormation Ls at ph
reseenibling the lomL3,ion of t-in plan" in
t. Irt
Gpots Imn"I by the 6' phase we not al-arp, as Previo x
Claimed, but are OungauLd evtu at tht earliest stag
fr-lation.
J. D.11

BAGARYATSKIYO, Yu.AL.; TIAB IN, I.P., akademik.
Calaulation of X-ray intensity dispersion at various
degrees of diffraction
orders in the distribution of defeat& in crystals. Dokl.AN
WSR 92 no.6:
1157-1160 0 153. (W-H, 6:10)
1. Akademiya, nauk SSSR (for Bardin).
(Orystallograpby) (1-rays--Diffraction)

Yu A.
USSR/Physics X-Ray Background 1 Nov 53
"Computation of Intensity of X-Ray Background at
Various Correlation Degree of Solid Solutions, it
_-Yu. A. Bagaryatskiy
DAN SSSR, Vol 93, No 1, pp 35-38
At-tempts to solve problems of scattering of x-rays
in solid soln. Obtains the same results found by
M. Lifshits (ZhFTF 9, 4(1939)) and-~Yu. N.
Obraztsov (ZhETF 8, 5 (1938)) for the one dimensional
case with chain atoms and in absence of distant order.
Presented by Acad I. P. Bardin 1 Sep 53-
275T93

YO.,X,
U&WPhYsizal chemistry - Crystals, 13-5
Alist Journal: Referat.Zhur - Khimiya, No 19, 1956, 60845
Author: kBagaryatakiy.. Tu. A.
Institution: None
Titlez Roentgenographic Investigation of Aging of Aluminum
Alloys. III.
Use of Roentgenogoniometric Methods for the Determination
of
Mutual Orientation of Phazes. IV. Procedure of Computation
of
Diffused Scattering Photographs
Original
Per*fical: Fiz. metallov i metallovedeniye, 1955, 1, No 2,
316-338
Abstract: Description of method and results of determining
the orientation
of equilibrium phase A12CuMg (S-phase) in aging alloy
Al-Cu-Mg
(duraluminum) and ascertaining the nature and
cbaracteristics of
strengthening phase formed on artificial aging,ift is made
of
alloy monocrystals and roentgen.ograpI pictures using Laue
cameras, rotary and "KFOR" with monorcmator.
Roentgenogonio-
metric pictures in IaW which do not distart the appearance
of
Card 1/4

Wa/Physical Che'mistry - Crystals, B-5
Abst Journa.12 Ref erat Zhur - Aimiya, No 19, 1956, 6oB45
Abstract% the planes of inverse lattice permit uniquely to
determine
orientation,of S-phase in relation to the solid mothor liquor
((K):/_71o__67s_ALTo_6T.., /M 11/U12T,!y, COOjTS11LM71aj there
are 19
.---o7s - ---
sud*07stallographically identical orientations of S-pharje
particles in the crystal. Tb* is pointed out a correspondence
in structure of cc- and S-phas6s which leads to this law of
mutual
orientation. Analogous pictures of the alloy following aging at
2180 and analysis of the results obtained permit to reach the
conclusion that in artificial aging the strengthening phase is
the same S-phase but in combined state conjug*
,Fd with the solid
solution which causes certain peculiarities in"particular a not
exact fulfillment of the above stated orientation law.
Considered
pLtion of 2
are the possibilities of determining the mutual 4WW
phases by the proposed method even in that instance vbjin the
crystalline structure of one phase is unknown.,-IV. By means of
vectox, analysis a computation foxmula is derived for the
transi-
tion from coordinates in a plane picture of diffuse scattering
ob%&&
tained with monochromatic radiation to the coordinates in the
space of inverse lattice for the point responsible for
scattering
Card 2/4

i
MaWF4791cal GImmis+ry - Crystals, B-5
Abet Journal: Referat Zhur - IOLUiya, No 19, 1956, 6o845
I
Abstract: in the given direction the se of cubic crystals:
c~
yQ-1 S,~i
%(xlx2x3) = a~A_l 7 + (DQ-1 - 1)SOI. Where Ha
is vector of inverlaxelk"ce having coordinates xlx2x .
measured
at the scale a* = I/S (a -- period of crystal latticei,,.~
~.d y
coordinates in picture measured in the direction of unit
vector i
of the crystal and perpendicular thereto (clockwise on
looking at
the picture in the direction of primary beam So)) So -- unit
vector In the crystal of direction So, D distance from
speci-
men to picture (in same units as x, y), Vxl~ + 7 + D-1 -
There
are-given developed particular formulas for 2 instances;
when
vector i is parallel to direction Joso7 or Jig in the
crystal
and position of vector So is arbitrary. Derived are also
formulas
for the inverse transition from coordinates of scattering
point in
apace of inverse lattice to the coordinates in the picture:
x/D a (*)I(SSO)~ y1D x (iSSO)/(SSO)j where (IS) and4MO) are
scalar products and (isso) the triple qk-Aed product of 2
or 3
unit vectors in the crystal and S m So +;ka*Ha. In the
supple-
ment is provided proof of multivalued nature (with accuracy
up
to factor -1) of the values of coordinates obtained on
computations
Card 3/4

USS,R/Physical Chemistry - Crystals, B-5
Abst Journal; Referat Zhur - Khimiya, NO 19, 1956: 60845
Abstract: by means of inverse lattice and the usual
computation of pictures
by the Laue me-thod. Crmnunications I and II, see Zh.
tekhn.
fiziki, 1948, 18., 8271 1951, 21, 658-
Card 4/4

-, I
];-ray investigation of the aging of aluminum alloys.
Part 4.
Methods of diffusion-scattering roentgenograms.
Fiz.met.i
metallovel. 1 ne.2:330-338 155'. (KLRA 9:4)
l.TSentral'W nauchno-iseledevatellskiy institut
cherney metalur-
gii. (Aluminum alloys-Astallography)

-,'The f-phase crysUl ttructurgend Ats m-
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I'M
VA.171
M WR

fi r19 -Ff) t