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

Journal of Advanced Ceramics

Qing Huang¹  Xiaobing Zhou¹  Lei Jing¹  Zhengren Huang¹  Dang-Hyok Yoon²  Jaehyung Lee²  Yong Duk Kwon³  Jin-Young Kim³ 

[1] Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences;School of Materials Science and Engineering, Yeungnam University;Union Materials Corporation;

关键词: SiC whisker;    Ti3SiC2;    mechanical property;    thermal conductivity;    spark plasma sintering;   

DOI  :  10.1007/s40145-020-0389-2

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown