Contribution to thermodynamic description of Al-Pd system

The homogeneity range around the Al3Pd stoichiometry, representing the family of quasicrystalline approximants denoted as n and/or (Al3Pd), was involved in the calculated Al-Pd phase diagram. The calculations were performed by means of the CALPHAD method using the Thermo-Calc software. A novel therm...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 809; no. 1; pp. 12008 - 12011
Main Authors uriška, Libor, erni ková, Ivona, i ka, Roman, Janovec, Jozef
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2017
Subjects
Homogeneity
Phase diagrams
Physics
Stoichiometry
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Summary:The homogeneity range around the Al3Pd stoichiometry, representing the family of quasicrystalline approximants denoted as n and/or (Al3Pd), was involved in the calculated Al-Pd phase diagram. The calculations were performed by means of the CALPHAD method using the Thermo-Calc software. A novel thermodynamic description of the n/(Al3Pd) phase was proposed based on the (Al%,Pd)3(Al,Pd%)1 two-sublattice model. Existing thermodynamic parameters of stoichiometric phases Al4Pd and Al21Pd8 were slightly adjusted. The transition between phases n/(Al3Pd) and γ-Al21Pd8 was predicted thermodynamically at 619°C.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/809/1/012008