SYNTHESIS OF сBN CRYSTALS WITH APPLICATION OF hBN AND wBN MICROPOWDERS AS FUSES

Abstract

The effect of seed micropowders from sphalerite and wurtzite boron nitride with a grain size of 0.5/0 to 5/3 μm, which were taken in an amount of from 0.3 to 4 % (by mass) to the reaction mixture in the synthesis of cubic boron nitride on composition of the obtained powders, was studied. The possibility of varying the grain composition of the сBN powders obtained in the synthesis depending on the grain size and seed content in the reaction mixture is shown in a wide range.