期刊
PHYSICAL REVIEW B
卷 92, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.020104
关键词
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资金
- US Office of Naval Research [N00014-12-1-0196, N00014-14-1-0055]
- Brown University
- National Science Foundation [ACI-1053575]
Using electronic structure calculations, we conduct an extensive investigation into the Hf-Ta-C system, which includes the compounds that have the highest melting points known to date. We identify three major chemical factors that contribute to the high melting temperatures. Based on these factors, we propose a class of materials that may possess even higher melting temperatures and explore it via efficient ab initio molecular dynamics calculations in order to identify the composition maximizing the melting point. This study demonstrates the feasibility of automated and high-throughput materials screening and discovery via ab initio calculations for the optimization of higher-level properties, such as melting points, whose determination requires extensive sampling of atomic configuration space.
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