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Research Article | Open Access

Fabrication of SiCw/Ti3SiC2 composites with improved thermal conductivity and mechanical properties using spark plasma sintering

Xiaobing ZHOUa,b( ), Lei JINGa, Yong Duk KWONc, Jin-Young KIMc, Zhengren HUANGa, Dang-Hyok YOONb( ), Jaehyung LEEb( ), Qing HUANGa
Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
Union Materials Corporation, Daegu 42710, Republic of Korea
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Abstract

High strength SiC whisker-reinforced Ti3SiC2 composites (SiCw/Ti3SiC2) with an improved thermal conductivity and mechanical properties were fabricated by spark plasma sintering. The bending strength of 10 wt% SiCw/Ti3SiC2 was 635 MPa, which was approximately 50% higher than that of the monolithic Ti3SiC2 (428 MPa). The Vickers hardness and thermal conductivity (k) also increased by 36% and 25%, respectively, from the monolithic Ti3SiC2 by the incorporation of 10 wt% SiCw. This remarkable improvement both in mechanical and thermal properties was attributed to the fine-grained uniform composite microstructure along with the effects of incorporated SiCw. The SiCw/Ti3SiC2 can be a feasible candidate for the in-core structural application in nuclear reactors due to the excellent mechanical and thermal properties.

Keywords

SiC whiskerTi3SiC2mechanical propertythermal conductivityspark plasma sintering

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Journal of Advanced Ceramics
Volume 9 Issue 4,
August 2020
Pages 462-470
DOI: 10.1007/s40145-020-0389-2

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Cite this article:
ZHOU X, JING L, KWON YD, et al. Fabrication of SiCw/Ti3SiC2 composites with improved thermal conductivity and mechanical properties using spark plasma sintering. Journal of Advanced Ceramics, 2020, 9(4): 462-470. https://doi.org/10.1007/s40145-020-0389-2

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Received: 23 March 2020
Revised: 19 May 2020
Accepted: 20 May 2020
Published: 09 July 2020
© The Author(s) 2020

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