BORIDES OF RARE-EARTH METALS
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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A review was made of principal propeties and production methods of borides of rare-earth metals and their alloys. It will make possible, in addtion to purely practical results, to raw a number of important theoretical conclusions on the nature of bond in this class of compounds of rare-earth mels and on its effect on chemical and physical properties of their borides. Athor D-255 366N1 15 575, 5176, 0876, 5175, 6097, 158, 1523, 1150, 942, 934, 6255, 3589, 4613, 1159, 2003, 6640,ad-255 367iv. 17 4 May 6 OTS price 11.00Aerospace technial Inteligence Center, Wright-Patterson Air Force Base, Ohio. SEIING OF METALS, by A. P. Semenov. 9 Nov 60, 11p. incl. illus. tables Trans. no. MCL-262 from Skhvatyvaniye Metallov, pp. 46-101 and 231-252, oscow, 1958 Unclassified report DESCRIPTOS ussr, metls, Adheion, onding, Welding, Diffuion, Presure, empeure, Friction, cutting tools, Machining. he phenomenon of the boning or seizing of metals when sbjected to pressre as expeienced with ccretions on cuting tools or with bearing urfaces in machines is discussed. The condions whch fciitate the occurrence of seizing and the corrective ations taken to prevent seizing of metals are reviewed. A number of useful applications of the soid phse joining of metals are analyzed.
APPROVED FOR PUBLIC RELEASE