Method of forming diamond impregnated carbide via the in-situ conversion of dispersed graphite
US5128080A · kind A · utility
24Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Aug 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C26/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is shown for forming a diamond impregnated carbide containing dispersed diamond crystals, the crystals being formed via in-situ conversion of graphite to diamond. Graphite particles are blended with tungsten carbide power and a binder containing elemental powders known to be diamond catalyst. After blending, the powder is pressed into a green body of a desired shaped and sintered. After sintering, the body is loaded into a high temperature and pressure apparatus and exposed to conditions sufficient to convert the graphite to diamond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.