First‐principles study, fabrication, and characterization of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramic

• Published in: Journal of the American Ceramic Society Vol. 102; no. 7; pp. 4344 - 4352
• Main Authors: Ye, Beilin, Wen, Tongqi, Huang, Kehan, Wang, Cai‐Zhuang, Chu, Yanhui
• Format: Journal Article
• Language: English
• Published: Columbus Wiley Subscription Services, Inc 01.07.2019; Wiley-Blackwell
• Subjects: Crystal structure; electrical resistivity; Enthalpy; Entropy; Entropy of formation; first‐principles calculations; high‐entropy ceramics; Mathematical analysis; mechanical properties; Metal carbides; Modulus of elasticity; Nanohardness; Principles; Solid solutions

The formation possibility of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramic (HHC‐1) was first analyzed by the first‐principles calculations, and then, it was successfully fabricated by hot‐pressing sintering technique at 2073 K under a pressure of 30 MPa. The first‐principles calculation results...