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Research & Development in Material Science

Study of Phase Formation In The Cute-As2te3System

Submission: October 27, 2020;Published: December 14, 2020

DOI: 10.31031/RDMS.2020.14.000844

ISSN : 2576-8840
Volume14 Issue4


By the methods of DTA, XRD, MSA, as well as by measuring the microhardness and determining the density of the alloys, the CuTe-As2Te3 system was studied and a phase diagram was constructed. The system state diagram is of the eutectic type and is characterized by one chemical compound of Cu3As4Te9 composition. Compounds Cu3As4Te9 melts incongruently at 320 °C. Solid solutions based on As2Te3 reaches 8mol. % and based on CuTe solid solutions are practically not installed. Cu3As4Te9 and As2Te3 form a eutectic composition of 45mol. % As2Te3 and temperature of 265 °C.

Keywords: Eutectic; Incongruent; Microhardness; Density; Syngony

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