Microstructure and properties of nano-laminated Y_(3)Si_(2)C_(2) ceramics fabricated via in situ reaction by spark plasma sintering

作     者：Lin-Kun SHI Xiaobing ZHOU Jian-Qing DAI Ke CHEN Zhengren HUANG Qing HUANG Lin-Kun SHI;Xiaobing ZHOU;Jian-Qing DAI;Ke CHEN;Zhengren HUANG;Qing HUANG

作者机构：Faculty of Materials Science and EngineeringKunming University of Science and TechnologyKunming 650093China Engineering Laboratory of Advanced Energy MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China 

出 版 物：《Journal of Advanced Ceramics》 (先进陶瓷（英文）)

年 卷 期：2021年第10卷第3期

页      面：578-586页

核心收录：

学科分类：080503[工学-材料加工工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the support from the Ningbo 3315 Innovative Teams Program,China(Grant No.2019A-14-C) This study was supported by the National Natural Science Foundation of China(Grant Nos.11975296 and 51811540402) 

主　　题：Y3Si_(2)C_(2) rare earth silicide carbides spark plasma sintering(SPS) ternary layered structure ceramic properties 

摘      要：A nano-laminated Y_(3)Si_(2)C_(2) ceramic material was successfully synthesized via an in situ reaction between YH_(2)and SiC using spark plasma sintering technology.A MAX phase-like ternary layered structure of Y_(3)Si_(2)C_(2) was observed at the atomic-scale by high resolution transmission electron *** lattice parameters calculated from both X-ray diffraction and selected area electron diffraction patterns are in good agreement with the reported theoretical *** nano-laminated fracture of kink boundaries,delamination,and slipping were observed at the tip of the Vickers *** elastic modulus and Vickers hardness of Y_(3)Si_(2)C_(2) ceramics(with 5.5 wt%Y_(2)O_(3)) sintered at 1500℃were 156 and 6.4 GPa,*** corresponding values of thermal and electrical conductivity were 13.7 W·m^(-1)·K^(-1) and 6.3×10^(5)S·m^(-1),respectively.