Method for making diamond grit and abrasive media
US5364423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 1993 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | May 6, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Synthetic diamond film produced by chemical vapor deposition can be crushed to obtain diamond grit which has useful abrasive properties. The flexibility of CVD deposition processes in determining diamond film properties means that CVD diamond grit properties can be tailored to particular abrasive applications. In a disclosed embodiment, the grit particles are coated with a magnetic material. The coated grit particles can then be aligned with a magnetic field, and the coated grit particles are bonded to a matrix while aligned. In a further disclosed form of the invention, a chemical vapor deposition system, such as an arc jet plasma deposition system, is provided in a chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.