Analysis of (Ti, Zr, Ta)-(O, C, N) systems for obtaining metal-ceramic coatings of the required composition by induction heat treatment

Abstract

In this paper, a review of the two- and multicomponent (Ti, Zr, Ta)-(O, C, N) phase diagrams was presented. The conditions of thermal effect on the studied refractory metals (Ti, Zr, Ta) in the presence of nonmetallic elements (O, C, N) for obtaining oxides, carbides and nitrides were determined. It was shown that in order to obtain refractory ceramic layers (coatings) of the required composition it was necessary to provide the heating above 1000 °C. For this purpose, the treatment with high-frequency currents of metal samples directly in a gaseous atmosphere or in a reaction chamber (container) containing a solid carbon-containing medium (cementing medium) was most effective.