Diamond sinter, high-pressure phase boron nitride sinter, and processes for producing those sinters
US5536485A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 11, 1994 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Aug 11, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/0685
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A powder of diamond or high-pressure phase boron nitride core particles charged into a coating space as it is dispersed, and a precursor of a coat forming substance allowed to contact and/or impinge against the particles in the powder of core particles so that their surfaces are covered with the coat forming substance, thereby preparing coated diamond or high-pressure phase boron nitride particles which are subsequently sintered. The thusly produced diamond of high-pressure phase boron nitride sinter is composed of coated core particles of high performance that are superhard, uniform, dense and sintered firmly, and which have a controlled microstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.