Producing cubic boron nitride useful e.g. as grinding material, comprises carrying out heat treatment of reaction mixture comprising boron or boron compounds, carbon, nitrogen or hydrogen containing compounds, and transition metal

摘要

Producing cubic boron nitride, comprises carrying out heat treatment of a reaction mixture comprising (i) boron and/or boron compounds excluding boron nitride, (ii) carbon, nitrogen and/or hydrogen containing compounds, and (iii) at least one transition metal and/or its compounds.