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

作　　者：Xiaobing Zhou Lei Jing Yong Duk Kwon Jin-Young Kim Zhengren Huang Dang-Hyok Yoon Jaehyung Lee Qing Huang 

机构地区：[1]Engineering Laboratory of Advanced Energy Materials,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,315201,China [2]School of Materials Science and Engineering,Yeungnam University,Gyeongsan,38541,Republic of Korea [3]Union Materials Corporation,Daegu,42710,Republic of Korea

出　　处：《Journal of Advanced Ceramics》2020年第4期462-470,共9页先进陶瓷（英文）

基　　金：This study was supported by the National Natural Science Foundation of China(Grant Nos.11975296 and 51811540402);the Natural Science Foundation of Ningbo City(Grant No.2018A610001);the Korea Ministry of Education(NRF-2018K2A9A2A06018203).

摘　　要：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.

关 键 词：SiC whisker TI3SIC2 mechanical property thermal conductivity spark plasma sintering 

分 类 号：TB332[一般工业技术—材料科学与工程]