Study of alloys of the Ag2GeS3-Sb2S3 system
Sulfides of copper and silver with the element germanium attract the attention of researchers in connection with the possibility of their use as functional materials. In recent years, a large number of studies have been devoted to the physical properties of АVBVI chalcogenides, due to their widespread use in optoelectronic devices. Therefore, our study is devoted to the study of the chemical interaction in the Ag2GeS3-Sb2S3 system and the construction of the phase diagram. Alloys for studying the Ag2GeS3-Sb2S3 system were synthesized from master alloys. The Ag2GeS3 and Sb2S3 ligatures were synthesized from elementary components with a purity of at least 99.999% in evacuated quartz ampoules in a single-zone furnace at temperatures of 1100 and 825 K. 3 hours. Using the methods of differential thermal (DTA), X-ray phase (XRD), microstructural analysis (MSA), as well as measurements of microhardness and density, phase equilibria in the Ag2GeS3-Sb2S3 system were studied. Based on the results of the study, a state diagram of the Ag2GeS3-Sb2S3 system was constructed. It was found that the Ag2GeS3-Sb2S3 system is a quasi-binary section of the Ag2S-GeS2-Sb2S3 quasi-ternary system and belongs to the eutectic type. Solubility based on Sb2S3 at room temperature reaches 10 mol.% Ag2GeS3 β-phase), and on the basis of silver thiogermanate Ag2GeS3 - 3 mol.%. Sb2S3. Solid solutions based on Sb2S3 crystallize in the rhombic system and with an increase in the concentration of silver thiogermanate, the parameters of the crystal lattice increase.
Keywords
X-ray analysis,
solid solution,
eutectic,
system,
phase diagram,
Ag2GeS3-Sb2S3Authors
| Mammadov Sharafat G. | Academician M. Nagiyev Institute of Catalysis and Inorganic Chemistry of NAS of Azerbaijan | azxim@mail.ru |
| Ismailova Rena A. | Azerbaijan State University of Oil and Industry | azxim@mail.ru |
| Azhdarova Dilbar S. | Academician M. Nagiyev Institute of Catalysis and Inorganic Chemistry of NAS of Azerbaijan | azxim@mail.ru |
Всего: 3
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