Behavior of thermal properties of AgCu1−xFexS compounds under non-isothermal conditions

Author:

Aliyev Y. I.12,Khalilzade P. R.34,Asadov Y. G.1,Ilyasli T. M.5,Mammadov F. M.6,Ismayilova N. A.1,Mirzayev M. N.78,Jabarov S. H.28,Dang N. T.9

Affiliation:

1. Institute of Physics, ANAS, Baku AZ-1143, Azerbaijan

2. Azerbaijan State Pedagogical University, Baku AZ-1000, Azerbaijan

3. Azerbaijan State Oil and Industry University, Baku AZ-1010, Azerbaijan

4. University of Strasbourg, Strasbourg 67081, France

5. Baku State University, Baku AZ-1148, Azerbaijan

6. Institute of Catalysis and Inorganic Chemistry, ANAS, Baku AZ-1143, Azerbaijan

7. Joint Institute for Nuclear Research, Dubna 141980, Russia

8. Institute of Radiation Problems, ANAS, Baku AZ-1143, Azerbaijan

9. Institute of Research and Development, Duy Tan University, 550000 Da Nang, Viet Nam

Abstract

AgCu[Formula: see text]Fe[Formula: see text]S compounds were synthesized by partial Cu[Formula: see text][Formula: see text][Formula: see text]Fe replacement in the AgCuS crystal at a concentration range of 0[Formula: see text][Formula: see text][Formula: see text]x[Formula: see text][Formula: see text][Formula: see text]0.03. In the differential thermal analysis spectrum obtained at a temperature range of 300 K[Formula: see text][Formula: see text][Formula: see text]T[Formula: see text][Formula: see text][Formula: see text]1300 K, endoeffect corresponding to the structural phase transition in the AgCuS compound was observed at the temperature T[Formula: see text]=[Formula: see text]938 K. It has been determined that this result is also observed in the AgCu[Formula: see text]Fe[Formula: see text]S compound obtained by partial replacement of Cu atoms by Fe atoms. However, in the compound of AgCu[Formula: see text]Fe[Formula: see text]S this effect was observed at higher temperatures. The thermal capacities and enthalpies of phase transitions were calculated for the given compounds.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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