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A high-entropy silicide (HES), (Ti0.2Zr0.2Nb0.2Mo0.2W0.2)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 (Ti0.2Zr0.2Nb0.2Mo0.2W0.2)Si2 are also measured.


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A high entropy silicide by reactive spark plasma sintering

Show Author's information Yuan QINaJi-Xuan LIUaFei LIaXiaofeng WEIaHouzheng WUbGuo-Jun ZHANGa( )
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
Department of Materials, Loughborough University, Leicestershire LE11 3TU, United Kingdom

Abstract

A high-entropy silicide (HES), (Ti0.2Zr0.2Nb0.2Mo0.2W0.2)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 (Ti0.2Zr0.2Nb0.2Mo0.2W0.2)Si2 are also measured.

Keywords:

high-entropy ceramics, high-entropy silicide, spark plasma sintering, silicide
Received: 15 February 2019 Accepted: 18 February 2019 Published: 13 March 2019 Issue date: March 2019
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Publication history
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Publication history

Received: 15 February 2019
Accepted: 18 February 2019
Published: 13 March 2019
Issue date: March 2019

Copyright

© The author(s) 2019

Acknowledgements

Financial support from the National Natural Science Foundation of China (Nos. 51532009 and 51872045), and the Science and Technology Commission of Shanghai Municipality (No. 18ZR1401400) are gratefully acknowledged.

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