| 发明名称 |
Ultra-hard abrasive particles |
| 摘要 |
<p>A synthetic diamond or cubic boron nitride particle is characterised by containing two or more stable isotopes of an element present in a ratio which is different to the ratio in which the isotopes exist in nature. The diamond or cubic boron nitride particle thus has a fingerprint. A preferred example of the element is nitrogen.</p> |
| 申请公布号 |
EP0537976(B1) |
申请公布日期 |
1997.06.11 |
| 申请号 |
EP19920309298 |
申请日期 |
1992.10.13 |
| 申请人 |
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED |
发明人 |
DYER, HENRY BROOKE;DAVIES, GEOFFREY JOHN;BURNS, ROBERT CHARLES |
| 分类号 |
B01J3/06;B82B1/00;C09K3/14;(IPC1-7):C09K3/14 |
主分类号 |
B01J3/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
