Revisiting the revised Ag-Pt phase diagram
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.
- Authors:
-
- 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)
- Publication Date:
- Research Org.:
- Northwestern Univ., Evanston, IL (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Institute of Standards and Technology (NIST)
- OSTI Identifier:
- 1533457
- Alternate Identifier(s):
- OSTI ID: 1398686
- Grant/Contract Number:
- FG02-07ER46433; 70NANB14H012; DEFG02-07ER46433
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Acta Materialia
- Additional Journal Information:
- Journal Volume: 124; Journal Issue: C; Journal ID: ISSN 1359-6454
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Materials Science; Metallurgy & Metallurgical Engineering; Platinum alloys; Cluster expansion; Phase diagrams; Ag-Pt
Citation Formats
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, and Wolverton, Christopher. Revisiting the revised Ag-Pt phase diagram. United States: N. p., 2016.
Web. doi:10.1016/j.actamat.2016.10.053.
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. Revisiting the revised Ag-Pt phase diagram. United States. https://doi.org/10.1016/j.actamat.2016.10.053
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, and Wolverton, Christopher. Tue .
"Revisiting the revised Ag-Pt phase diagram". United States. https://doi.org/10.1016/j.actamat.2016.10.053. https://www.osti.gov/servlets/purl/1533457.
@article{osti_1533457,
title = {Revisiting the revised Ag-Pt phase diagram},
author = {Hart, Gus L. W. and Nelson, Lance J. and Vanfleet, Richard R. and Campbell, Branton J. and Sluiter, Marcel H. F. and Neethling, Jan H. and Olivier, Ezra J. and Allies, Soraya and Lang, Candace I. and Meredig, Bryce and Wolverton, Christopher},
abstractNote = {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.},
doi = {10.1016/j.actamat.2016.10.053},
journal = {Acta Materialia},
number = C,
volume = 124,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2016},
month = {Tue Nov 15 00:00:00 EST 2016}
}
Web of Science
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