Sintered article of diamond and method for production thereof
US5030596A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 1, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Dec 1, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/0685
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sintered article of diamond is obtained by coating the surface of diamond particles with 30 to 0.1% by volume, based on the total volume of the diamond particles and aids, of at least one member selected from the group consisting of the transition metals of Groups 4a, 5a, and 6a in the Periodic Table of Elements and boron and silicon, and sintering the coated diamond particles under conditions of high pressure and high temperature, which sintered article consists of 70 to 99.8% by volume of diamond and 30 to 0.2% by volume of the carbide of the coating substance. A method for the production of the sintered article of diamond is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.