Diamond tool, synthetic single crystal diamond and method of...

Details Diamond tool, synthetic single crystal diamond and method of... Diamond tool, synthetic single crystal diamond and method of...

2008-07-29

2008-07-29

Nguyen, Dung Van (Department: 3723)

Stone working

Tools

Surface traversing

C125S036000

Reexamination Certificate

active

07404399

ABSTRACT:
Various types of diamond tools are provided by utilizing the fact that a synthetic single crystal diamond for use in a tool having a nitrogen content of 3 ppm or less exhibits an enhanced hardness in a (100) plane in a <111> direction and simultaneously the reduction in defects. The above synthetic single crystal diamond is synthesized by the temperature difference method under an ultra high pressure at high temperature and contains, in its crystals, nickel introduced by atomic substitution or boron and nickel introduced by atomic substitution.

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H. Sumiya, S. Satoh, “High-Pressure Synthesis of High-Purity Diamond Crystal”, Diamond and Related Materials 5 Elsevier Science S.A., 1996 pp. 1359-1365.

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