Quasi-chemical studies of ordering in the Cu–Zr and Cu–Si melts

The quasi chemical approximation (QCA) for strongly interacting systems has been applied to study ordering and glass formation tendencies in metal–metal and metal–nonmetal liquid alloy systems; in this case Cu–Zr and Cu–Si at temperatures of about 1499 and 1599 K, respectively. While the QCA results...

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Published in:Journal of alloys and compounds 2001-11, Vol.329 (1), p.162-167
Main Authors: Anusionwu, B.C., Adebayo, G.A.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: structure, mechanical and thermal properties
Enthalpy
Entropy
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
Glass transitions
Liquid alloys
Metals. Metallurgy
Physics
Specific phase transitions
Thermodynamic modelling
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description The quasi chemical approximation (QCA) for strongly interacting systems has been applied to study ordering and glass formation tendencies in metal–metal and metal–nonmetal liquid alloy systems; in this case Cu–Zr and Cu–Si at temperatures of about 1499 and 1599 K, respectively. While the QCA results show good agreement with experimental thermodynamic data for Cu–Zr which manifested high tendency to glass formation at Zr concentrations greater than 0.6 atomic fractions, the agreement of the QCA results with experimental thermodynamic data for Cu–Si were not in good agreement suggesting some limitations to the QCA formulations.
doi_str_mv 10.1016/S0925-8388(01)01572-9
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subjects Applied sciences
Condensed matter: structure, mechanical and thermal properties
Enthalpy
Entropy
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
Glass transitions
Liquid alloys
Metals. Metallurgy
Physics
Specific phase transitions
Thermodynamic modelling
title Quasi-chemical studies of ordering in the Cu–Zr and Cu–Si melts
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