journal article·2017-02Open access

Revisiting the revised Ag-Pt phase diagram

Gus L.W. Hart, Lance J. Nelson, Richard R. Vanfleet, Branton J. Campbell, Marcel H.F. Sluiter, Jan H. Neethling, Ezra J. Olivier, Soraya Allies, Candace I. Lang, Bryce Meredig, Christopher Wolverton

Acta Materialia· Volume 124

Abstract

Abstract Because of the important applications of platinum alloys and related platinum-group-metals phases, complete phase diagrams for these systems are important for materials engineering. The currently accepted phase diagram for the Ag-Pt system is questionable because of its disagreement with earlier experiments and because of its claim for a lone ordered structure at 53%-Pt which was not characterized and which contradicts both computational predictions and analogy to the isoelectronic system Cu-Pt. A complete re-examination of the Ag-Pt system by computational and experimental means suggests a phase diagram similar to the isoelectronic system Cu-Pt. The unknown compound, claimed to be 53%-Pt, is found to be the L11 structure at 50%-Pt.
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Research context

OpenAlex topics: Advanced Materials Characterization Techniques · Metallurgical and Alloy Processes · Surface and Thin Film Phenomena

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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