Phase Equilibria in the Quasi-Ternary System Cu2Se-GeSe2-Sb2Se3
| Autor: | I.A. Ivashchenko, O. F. Zmiy, T.A. Ostapyuk, O. M. Strok, I. D. Olekseyuk |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Ternary numeral system Materials science 0211 other engineering and technologies Metals and Alloys Thermodynamics Binary number 02 engineering and technology Liquidus Condensed Matter Physics 01 natural sciences Isothermal process law.invention law Phase (matter) 0103 physical sciences Materials Chemistry Crystallization Ternary operation 021102 mining & metallurgy Eutectic system |
| Zdroj: | Journal of Phase Equilibria and Diffusion. 41:827-834 |
| ISSN: | 1863-7345 1547-7037 |
| Popis: | The isothermal section of the quasi-ternary system Cu2Se-GeSe2-Sb2Se3 at 620 K (347 °C) and the liquidus surface projection of the system onto the concentration triangle have been built. The sections Cu2GeSe3-CuSbSe2 and Cu2GeSe3-Sb2Se3 are quasi-binary systems of the eutectic type. The eutectic point coordinates in the Cu2GeSe3-Sb2Se3 system are: 70 mol.% Sb2Se3-30 mol.% Cu2GeSe3, 780 K (507 °C). In the Cu2GeSe3-CuSbSe2 system the eutectic point coordinates are: 10 mol.% Cu2GeSe3-90 mol.% CuSbSe2, 750 K (477 °C). The liquidus surface projection is represented by the fields of the primary crystallization of Cu2Se (high-temperature modification), Cu8GeSe6 (high- and low-temperature modifications), Cu2GeSe3, GeSe2, Sb2Se3, CuSbSe2 and Cu3SbSe3 compounds. The fields are separated by 9 nonvariant points corresponding to the processes in the quasi-binary systems and 7 nonvariant points at the planes of the respective nonvariant processes in the quasi-ternary sub-systems Cu2Se-Cu2GeSe3-CuSbSe2, Cu2GeSe3-Sb2Se3-CuSbSe2, Cu2GeSe3-GeSe2-Sb2Se3. Solid solubility in binary and ternary compounds does not exceed 5 mol.%, no quaternary phases were found. |
| Databáze: | OpenAIRE |
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