Accession Number : AD0642786

Title :   DEPOSITION OF CARBON ON DIAMOND SEED CRYSTALS,

Corporate Author : CASE INST OF TECH CLEVELAND OHIO

Personal Author(s) : Angus,John C. ; Will,Herbert

Report Date : 09 SEP 1966

Pagination or Media Count : 14

Abstract : Experiments were performed to establish the feasibility of growing diamond crystals for potential electronic device application by the deposition of carbon on diamond seed crystals at moderate pressures. Methane at temperatures and pressures on the order of 1050C and 1 mm Hg was used as the source of carbon. Weight increases were consistently observed when pure methane was used as the source of carbon. When the methane was diluted with either hydrogen or helium, the seed crystals decreased in weight. Preliminary investigation of the crystals by Debye-Scherrer X-ray patterns, chemical kinetic studies and visual observation indicate the observed increase in mass is diamond. More definitive studies to verify this conclusion are underway. (Author)

Descriptors :   (*SEMICONDUCTORS, DIAMONDS), (*DIAMONDS, *CRYSTAL GROWTH), (*CARBON, DEPOSITION), NUCLEATION, METHANE, PYROLYSIS, X RAY DIFFRACTION, REACTION KINETICS, VAPOR PLATING, WEIGHT

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Crystallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE