Synthesis and X-ray Powder Diffraction Study of Alloys in the As2Se3-InSe System
| Autor: | I. I. Aliev, O. M. Aliev, K. N. Babanly, R. S. Magammedragimova |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Ternary numeral system Materials Science (miscellaneous) Analytical chemistry 010402 general chemistry 010403 inorganic & nuclear chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry Tetragonal crystal system chemistry.chemical_compound chemistry Phase (matter) Selenide Physical and Theoretical Chemistry Ternary operation Powder diffraction Phase diagram Eutectic system |
| Zdroj: | Russian Journal of Inorganic Chemistry. 64:527-530 |
| ISSN: | 1531-8613 0036-0236 |
| DOI: | 10.1134/s003602361904003x |
| Popis: | Phase equilibria in the As2Se3–InSe system were studied by physicochemical analysis methods (differential thermal, X-ray powder diffraction, and microstructural analyses and microhardness and density measurements), and the phase diagram of the system was constructed. It was found that the system is a quasi-binary section of the ternary system In–As–Se and is characterized by the formation of two ternary selenides, InAs2Se4 and In3As2Se6, melting without decomposition at 775 and 810°C, respectively. The coordinates of eutectic points are (13 mol % InSe, 315°C), (80 mol % InSe, 675°C), and (85 mol % InSe, 535°C). The arsenic selenide-based glass-forming range is 20 mol % InSe, and the crystalline-glass range extends to 35 mol % InSe. The solubilities based on As2Se3 and InSe are limited and are 5 and 3 mol %, respectively. According to X-ray powder diffraction analysis data, the compounds InAs2Se4 and In3As2Se6 crystallize in the tetragonal system with the unit cell parameters a = 9.44 A, c = 8.73 A, V = 785.6 A3, Z = 4 and a = 9.42 A, c = 8.77 A, Z = 3, respectively. |
| Databáze: | OpenAIRE |
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