Refractory Ceramic Products from Pure Oxides with Getter Coatings

Abstract

We developed a technology of manufacturing refractory products from pure oxides with getter titanium coatings intended for the fusion and pouring of chemically active metals and alloys. This technology is realized by the method of plasma spraying. The obtained products guarantee the reliable protection of the melts located inside them against the penetration of gases from the atmosphere. The application of these products significantly increases the reliability of the process of growth of parasite-free single crystals from magnetically hard alloys of the Fe–Co–Ni–Cu–Al–Ti system and makes it insensitive to the presence of gaseous admixtures of nitrogen and carbon and water vapors in the inert atmosphere of growth chamber.