THERMAL-DISSOCIATION OF COPPER CHALCOGENIDES DURING MELTING

An attempt was undertaken to describe the mechanism of dissociation of copper chalcogenides during melting. Two-stage schemes of the dissoci ation of the Cu2BVI compounds (B-VI is S, Se, or Te) were proposed, It was suggested that in the copper-sulfur and copper-selenium melts. Cu 2BVI and CuBVI associates exist, whereas in the copper tellurium syste ms, Cu2Te and Cu5Te3 associates exist. The interpretation of available data on magnetic susceptibility was given in terms of suggested assoc iates in Cu-Te alloys.