Open Access

ARTICLE

Projection of the liquidus surface of the Ho-Bi-Te ternary system

T. M. Ilyas^a, F. M. Sadigov^a, N. Sh. Mammadova^a, Y. I. Aliyev^b,c, R. E. Huseynov^d,*

a Baku State University, Baku, AZ-1148, Azerbaijan
b Azerbaijan State Pedagogical University, Baku, AZ-1000, Azerbaijan
c Western Caspian University, Baku, AZ-1001, Azerbaijan
d Institute of Physics, Ministry of Science and Education Republic of Azerbaijan, Baku, АZ-1143, Azerbaijan

* Corresponding Author:

Chalcogenide Letters 2024, 21(9), 707-717. https://doi.org/10.15251/CL.2024.219.707

Received 21 June 2024; Accepted 11 September 2024;

Abstract

The Ho-Bi-Te ternary system was studied by DTA, X-ray diffraction, and MSA, as well as by measuring microhardness and determining density, congruent triangulation scheme and projection of the liquidus surface, types and coordinates of mono- and invariant equilibria. It is established that this system is triangulated into five pseudo-ternary systems. It was discovered that an incongruently melting ternary compound containing HoBiTe₃ is formed in the Ho-Bi-Te ternary system. X-ray phase analysis established that the HoBiTe₃ compound crystallises in a tetragonal system with lattice parameters: a = 19.99, с = 13.82 Å, Z = 3. Studying the nature of the interaction of the components of the quasi-binary section Bi₂Te₃-Ho₂Te₃ of the Ho-Bi-Te ternary system, as well as thermoelectric materials formed by combining Bi₂Te₃ with rare-earth tellurides, is of interest from a scientific and practical point of view.

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Keywords

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