Accession Number : ADD015191

Title :   Consolidation of Diamond Packed Powders.

Descriptive Note : Patent, Filed 8 Jul 91, patented 14 Jan 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Kabacoff, Lawrence T ; Barkyoumb, John

Report Date : 14 Jan 1992

Pagination or Media Count : 4

Abstract : A process for producing a diamond composite comprising diamond powder particles bonded together by polycrystalline diamond by (1) pressing an intimate mixture of fine opaque nondiamond carbon powder and transparent diamond powder to form a green body that is confined in either a thin walled transparent quartz vessel or a polycrystalline diamond coating; (2) using a pulse laser to quickly melt the opaque nondiamond carbon powder, and (3) allowing the carbon melt to cool and grow homoepitaxially from the surfaces of the diamond particles producing a polycrystalline diamond that bonds the diamond particles together.

Descriptors :   CARBON, COATINGS, DIAMONDS, GREEN(COLOR), MELTS, PARTICLES, POLYCRYSTALLINE, POWDERS, PULSED LASERS, QUARTZ, TRANSPARENCE

Subject Categories : Coatings, Colorants and Finishes
      Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE