Revisiting the revised Ag-Pt phase diagram

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

doi:10.1016/j.actamat.2016.10.053

Title: Revisiting the revised Ag-Pt phase diagram

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2016.10.053· OSTI ID:1533457

^[1]; Nelson, Lance J. ^[1]; Vanfleet, Richard R. ^[1];

^[1]; Sluiter, Marcel H. F. ^[2]; Neethling, Jan H. ^[3]; Olivier, Ezra J. ^[3]; Allies, Soraya ^[4];

^[5]; Meredig, Bryce ^[6]; Wolverton, Christopher ^[7]

Brigham Young Univ., Provo, UT (United States)
Delft Univ. of Technology (Netherlands)
Nelson Mandela Metropolitan University, Port Elizabeth, (South Africa)
Univ. of Cape Town (South Africa)
Macquarie Univ., NSW (Australia)
Northwestern Univ., Evanston, IL (United States); Citrine Informatics, Redwood City, CA (United States)
Northwestern Univ., Evanston, IL (United States)

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 Organization:: Northwestern Univ., Evanston, IL (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Institute of Standards and Technology (NIST)

Grant/Contract Number:: FG02-07ER46433; 70NANB14H012; DEFG02-07ER46433

OSTI ID:: 1533457

Alternate ID(s):: OSTI ID: 1398686

Journal Information:: Acta Materialia, Vol. 124, Issue C; ISSN 1359-6454

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 23 works

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