Accession Number:

ADA257845

Title:

Pseudomorphic Stabilization of Diamond on Non-Diamond Substrates. Part 1. Diamond Grown on Single Crystal Beryllium Oxide. Part 2. Anomalous Band Gap Behavior and Phase Stability of c-BN/Diamond Alloys

Descriptive Note:

Interim rept. 1 Jan 1991-30 Sep 1992

Corporate Author:

CASE WESTERN RESERVE UNIV CLEVELAND OH

Report Date:

1992-10-12

Pagination or Media Count:

47.0

Abstract:

Diamond was grown on single crystal beryllium oxide by hot-filament chemical vapor deposition. Individual diamond crystals grew epitaxially on the basal plane of BeO with the epitaxial relationship 111diamond 0001 and 1 1 0 diamond rotated by less than 6 deg from 1150 BeO. Electronic structure calculations of mixed crystals of c-BN and diamond show pronounced band gap bowing. The calculations predict only very limited mutual solubility in the solid state.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Properties of Metals and Alloys
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE