Accession Number : AD0605732

Title :   X-RAY INVESTIGATION OF DOUBLE VANADIUMTUNGSTEN CARBIDES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Gurevich,M. A. ; Ormont,B. F.

Report Date : 27 AUG 1964

Pagination or Media Count : 8

Abstract : It is shown that at 1700--1800 the cubic carbide of vanadium VC dissolves nearly 10 mol % of the hexagonal carbide WC. At 2150--2200 the vanadium carbide VC dissolves more than 50 mol % of the tungsten carbide WC, and besides on the VC base a single-phase system will be formed--a continuous row of solid solutions with a smoothly variable period of identity from 4.16 to 4.21 kX along a very steep curve. The period of the identity c lattice of the WC phase decreases by 3--4 units in the third place after the point (the a period remains constant) as compared with pure WC. This can be explained, probably, by the very small solubility of the cubic VC carbide in the hexagonal WC carbide. (Author)

Descriptors :   (*CARBIDES, PHASE STUDIES), (*VANADIUM COMPOUNDS, CARBIDES), (*TUNGSTEN COMPOUNDS, CARBIDES), CERMETS, X RAY PHOTOGRAPHY, SOLID SOLUTIONS, CRYSTAL LATTICES, SOLUBILITY, HIGH TEMPERATURE, CERAMIC MATERIALS, ALLOYS, METALLURGY

Distribution Statement : APPROVED FOR PUBLIC RELEASE