APPLICATION OF THE KINETIC METHOD FOR ASSESSMENT OF THE INTERACTION IN THE SYSTEM C–O–W DURING THE HIGH PRESSURE SINTERING OF THE DIAMOND-TUNGSTEN CARBIDE NANOCOMPOSITE

Abstract

The oxidation kinetics of static synthesized diamond nanopowders ASM5 0.1 / 0 with tungsten  was investigated. The addition of tungsten was introduced with water solution (NH₄)₂WO₄.  It is shown that the introduction of tungsten with water solution (NH₄)₂WO₄  increases  its inhibitory effect.

It is shown that the use of a dissolved ammonium tungstate salt as a medium for the preparation of the initial mixture of diamond nanopowders and WO₃ improves the sintering of the diamon -tungsten carbide nanocomposite. The hardness of this composite is 1.2 times that of a nanocomposite obtained without using a soluble tungsten-containing substance.