Halogenide refractory reusable crucibles for melting, isothermal homogenization and high­temperature synthesis of chemically aggressive alloys on base of Ti, Zr, Nb, V 

Abstract

The developed refractory material on the basis of the alkaline-earth fluorides and a product from it (crucibles, cups and other) are used for casting, melting, high-temperature homogenization of chemically aggressive alloys, which contain Ti, Zr, V, Nb. However due to the big differences in factors of temperature expansion for fluorides and for metals a mechanical compression of an alloy, which is cooled, in crucible occurs. It results to destruction of the crucible. Crucibles, which understand on some parts, have been developed. It allows their reusable for high-temperature homogenization and melting of chemically active alloys, which contain Ti, Zr, V, Nb.