Thermodynamic reassessment of the Al–Zr binary system
| Autor: | Rkia Tamim, Kamal Mahdouk |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Chemistry Intermetallic Thermodynamics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Exponential function Gibbs free energy symbols.namesake 0103 physical sciences symbols Physical chemistry Binary system Physical and Theoretical Chemistry 0210 nano-technology CALPHAD Stoichiometry Phase diagram Solid solution |
| Zdroj: | Journal of Thermal Analysis and Calorimetry. 131:1187-1200 |
| ISSN: | 1588-2926 1388-6150 |
| DOI: | 10.1007/s10973-017-6635-3 |
| Popis: | Based on the data of the literature reports, the Al–Zr binary system has been re-assessed thermodynamically through the CALPHAD (CALculations of PHAse Diagram) approach using Thermo-Calc software. The Redlich–Kister polynomials as well as the exponential temperature dependence model of Kaptay were used to describe the excess Gibbs energy of the liquid phase and the three terminal solid solutions: fcc_A1 (Al), bcc_A2 (βZr), and hcp_A3 (αZr). Additionally, the ten Al–Zr intermetallic compounds were treated as strict stoichiometric compounds. Finally, the comparison between the experimental and the two calculated phase diagrams, as well as the generated thermodynamic parameters, was critically discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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