"A high entropy silicide by reactive spark plasma sintering" by Yuan QIN, Ji-Xuan LIU et al.

Article Title

A high entropy silicide by reactive spark plasma sintering

Authors

Yuan QIN, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
Ji-Xuan LIU, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
Fei LI, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
Xiaofeng WEI, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
Houzheng WU, Department of Materials, Loughborough University, Leicestershire LE11 3TU, United Kingdom
Guo-Jun ZHANG, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Functional Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

Keywords

high-entropy ceramics, high-entropy silicide, spark plasma sintering, silicide

Abstract

A high-entropy silicide (HES), (Ti_0.2Zr_0.2Nb_0.2Mo_0.2W_0.2)Si₂ with close-packed hexagonal structure is successfully manufactured through reactive spark plasma sintering at 1300 ℃ for 15 min. The elements in this HES are uniformly distributed in the specimen based on the energy dispersive spectrometer analysis except a small amount of zirconium that is combined with oxygen as impurity particles. The Young’s modulus, Poisson’s ratio, and Vickers hardness of the obtained (Ti_0.2Zr_0.2Nb_0.2Mo_0.2W_0.2)Si₂ are also measured.