Structural aspects of thermal properties of AgCuS compound

被引：46

作者：

Aliyev, Y., I ^{[1
,2
]}

Asadov, Y. G. ^{[1
]}

Ilyasli, T. M. ^{[3
]}

Mammadov, F. M. ^{[4
]}

Naghiyev, T. G. ^{[1
,5
]}

Ismayilova, Z. A. ^{[6
]}

Mirzayev, M. N. ^{[7
,8
]}

Jabarov, S. H. ^{[1
,2
]}

机构：

[1] ANAS, Inst Phys, AZ-1143 Baku, Azerbaijan

[2] Azerbaijan State Pedag Univ, AZ-1000 Baku, Azerbaijan

[3] Baku State Univ, AZ-1148 Baku, Azerbaijan

[4] ANAS, Inst Catalysis & Inorgan Chem, AZ-1143 Baku, Azerbaijan

[5] Azerbaijan State Econ Univ, Composite Mat Sci Res Ctr, Dept Phys & Chem, AZ-1063 Baku, Azerbaijan

[6] Baku Engn Univ, AZ-0102 Khirdalan, Azerbaijan

[7] Joint Inst Nucl Res, Dubna 141980, Russia

[8] ANAS, Inst Radiat Problems, AZ-1143 Baku, Azerbaijan

来源：

MODERN PHYSICS LETTERS B | 2020年 / 34卷 / 05期

关键词：

Crystal structure; DTA analysis; X-ray diffraction; TRANSFORMATIONS; SUBSTITUTION; TRANSITION; SPECTRUM; TLFES2;

D O I：

10.1142/S0217984920500669

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystal structure and thermal properties of AgCuS compound were investigated at high temperature ranges. It was found that the crystal structure of these compounds has orthorhombic symmetry with Cmcm space group at the normal condition and room temperature. The phase transition to cubic symmetry with Fm3m space group is observed at T = 930 K temperature. The endoeffect was observed with a central peak at T = 938 K in the differential thermal analysis. The temperature dependence on heat capacity was obtained in the range of 300 K <= T <= 1300 K temperature. Thermodynamic parameters have been determined: enthalpy and heat capacity. The value of enthalpy was calculated according to the temperature of the phase transition.

引用

页数：7

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