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

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Document Number (FOIA) /ESDN (CREST): 
CIA-RDP86-00513R000101410010-3
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RIF
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S
Document Page Count: 
100
Document Creation Date: 
November 2, 2016
Document Release Date: 
March 20, 2001
Sequence Number: 
10
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Publication Date: 
December 31, 1967
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SCIENCEAB
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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). Card 5bI 4-1. 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) Card 6/ *, 1144, 11L-111 4. 0 ~_6/_ // 4 0/ 1:3.7 4 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- Card 1/7 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