Effect of sintering temperature on electrical properties of SiC/ZrB2 ceramics

doi:10.1016/j.jeurceramsoc.2018.03.039

	Effect of sintering temperature on electrical properties of SiC/ZrB2 ceramics
	Chen, Junjun 1; Chen, Jian ; Yao, Xiumin ; Chen, Zhongming ; Liu, Xuejian ; Huang, Zhengren
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018
卷号	38 期号:9 页码:3083
关键词	Silicon carbide Zirconium diboride Electrical property Grain boundary Sintering temperature
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2018.03.039
英文摘要	SiC/20 wt% ZrB2 composite ceramics were fabricated via pressureless solid phase sintering in argon atmosphere at different temperature. The effect of sintering temperature on microstructure, electrical properties and mechanical properties of SiC/ZrB2 ceramics was investigated. Electrical resistivity exhibits twice significant decreases with increasing sintering temperature. The first decrease from 1900 degrees C to 2000 degrees C is attributed to the obvious decrease of continuous pore channels in as-sintered materials. The second decrease from 2100 degrees C to 2200 degrees C results from the improvement of carbon crystallization and the disappearance of amorphous layers enveloping ZrB2 grains. Additionally, the increase of sintered density with increasing temperature caused greatly advance of flexural strength, elastic modulus and Vickers hardness. But excessive temperature is detrimental to flexural strength because of SiC grain growth.
学科主题	Materials Science, Ceramics
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000433014200004
资助机构	This work was funded by National Natural Science Foundation of China (Grant No. 51302288), and Natural Science Foundation of Shanghai (No.17ZR1434500). ; This work was funded by National Natural Science Foundation of China (Grant No. 51302288), and Natural Science Foundation of Shanghai (No.17ZR1434500).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24789]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Junjun,Chen, Jian,Yao, Xiumin,et al. Effect of sintering temperature on electrical properties of SiC/ZrB2 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(9):3083, 3088.
APA	Chen, Junjun,Chen, Jian,Yao, Xiumin,Chen, Zhongming,Liu, Xuejian,&Huang, Zhengren.(2018).Effect of sintering temperature on electrical properties of SiC/ZrB2 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(9),3083.
MLA	Chen, Junjun,et al."Effect of sintering temperature on electrical properties of SiC/ZrB2 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.9(2018):3083.