发明名称 ULTRAHARTE SCHLEIFTEILCHEN
摘要 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.
申请公布号 AT154382(T) 申请公布日期 1997.06.15
申请号 AT19920309298T 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
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