Accession Number : AD0655456

Title :   BONDING, STRUCTURE AND MECHANICAL BEHAVIOR OF VANADIUM CARBIDE 9SINGLE CRYSTALS.

Descriptive Note : Technical rept.,

Corporate Author : MARTIN CO BALTIMORE MD RESEARCH INST FOR ADVANCED STUDIES

Personal Author(s) : Lye,R. G. ; Hollox,G. E. ; Venables,J. D.

Report Date : JUN 1967

Pagination or Media Count : 22

Abstract : An approximate band structure for VC has been derived. From this, it is concluded that the bonding in VC arises primarily from interactions between orbitals on the metal atoms, and that this component of the bonding is stronger in VC than in TiC. Measurements of the compressive yield strength of VC0.85 single crystals over the range 900 -1800C support this conclusion. However, a domain structure, associated with ordered carbon vacancies, has been observed in these crystals. The anisotropy introduced by such ordering may also contribute to the higher strength of this material. (Author)

Descriptors :   (*SINGLE CRYSTALS, *CARBIDES), (*VANADIUM COMPOUNDS, CARBIDES), BAND THEORY OF SOLIDS, COMPRESSIVE PROPERTIES, ANISOTROPY, CHEMICAL BONDS, TITANIUM COMPOUNDS

Subject Categories : Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE