SCIENTIFIC ABSTRACT ANDREYEVA, V. V. - ANDREYEVA, Y.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000101410010-3
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 20, 2001
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

S/133/61/000/002/009/014
A054/AO33
Oxidation and Deoarbonization of Steele in Heating Furnaces Fired With
Natural Gas
The preheating of the air, which is necessary with the incomplete combustion
of the natural gas, can be attained by conventional air heaters. Son-oxidiz-
ing heating reduces oindering and at the same time, the thickness of the de-
carbonized layer. However, the decrease of this layer is less considerable.
than the decrease in losses due to cindering. To reduce decarbonization
other methods therefore, have to be applied in addition to incomplete com-
bustion, as, e.g., coating with siliceous slag (Ref-5), A.A. Aleksandrov and
Yu.A. Panlkovs The Application of Coatings to Protect Steels from Oxidation
and Deoarbonization During Heating; in the oollectiont Processing of Metals
and Heat Treatment; annex to Stall, 1959, pp. 214-240) or by blowing lithium
carbonate into the furnace to form a protecting coating on the metal surface
(Ref.6s F. Neuberger, et al. Fertigungsteohnik, 1957, Vol-7,No.10 and Ref-71
H.W. Steading: Industrieblatt, 1958, Vol-58PNO-4). There are 9 figures and
7 references (4 Soviet and 3 Non-Soviet).
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8/133/61/000/002/009/014
A054/A033
Oxidation and Deoarbonization of Steals in Heating Furnaoes Fired With
Natural Gas
ASSOCIATIONSt VNIIMT , Zavod "Krasnyy Oktyabr" ("Krasnyy Oktyabr" Plant)
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AUTHORS; Andreyeva, V. V.
TITLE: Structure of the
based on optical
PERIODICAL: Zhurnal fizicheskoy
24657
S/076/61/035/006/009/013
B110/B220
and Shishakov, N. A. (Moscow)
surface layers of germanium and silicon
and electron diffraction data
khimii, v. 35, no. 6, 1961, 1351 - 1358
TEXTt Since the electrical properties of Ge and Si semiconductors are
largely dependent on the reaction products with oxygen and moisture formed
at the surface, their surface structure has to be studied thoroughly. The
thickness of the nonmetallic surface layer was determined optically by
means of a polarization goniometer (V. V. Andreyevat Tr. In-ta fiz.
khimii AN SSSR, vyp. VI, 79, 1957) when the reversible adsorption of
oxygen through the surface of condensed germanium was studied. Films of
very pure germanium on glass slides were obtained by evaporating Ge from
a tungsten coil at 10-6 - 10-7 mm Eg and measured optically. After intro-
duction of dry air further measurements were made. The tbicknesses of the
layers obtained from the measuring difference (Fig. 1) show: the true oxide
film (I) which is constant in vacuo is covered by a volatile film (II) pre-
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24657
S/076/61/035/006/009/013
Structure of the surface layers ... B110/B220
sumably consisting of molecular oxygen. In the first reaction period only
(H) exists, whareunder (I) develops later on (after 34 days on air). When
exposed