Fabrication method of cubic boron nitride

Details Fabrication method of cubic boron nitride Fabrication method of cubic boron nitride

1991-03-28

1992-09-15

Langel, Wayne

Chemistry of inorganic compounds

Boron or compound thereof

Binary compound

501 96, C01B 21064

Patent

active

051476231

ABSTRACT:
A process for preparing large granules of cubic boron nitride from hexagonal boron nitride, which comprises using a binary alloy of Al-Mg as a catalyst under high temperature and pressure wherein binary alloy can be obtained by gas spraying of the alloy melt or grinding the agglomerates and easily treated due to its low activity, whereby the resultant cubic boron nitride crystal has large size without impurities.

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