Ultra-hard abrasive particles

Details Ultra-hard abrasive particles Ultra-hard abrasive particles

1993-10-14

1995-03-28

Bell, Mark L.

Abrasive tool making process, material, or composition

Miscellaneous

51307, 1062868, 428403, 428408, B24D 300

Patent

active

054012830

ABSTRACT:
A synthetic diamond or cubic boron nitride particle is characterized 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.

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J. Phys. D. Appl. Phys., vol. 20, 909-974 (1987) Collins, A. T. et al, "Nitrogen isotope effects in synthetic diamonds".
Database Inspec. No. 803670 Abstract (May 1975).
JETP Letters, vol. 14, (1971), pp. 551-553, Samoilovitch et al, "Electron Paramagnetic Resonance of Nickel in Synthetic Diamond".

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