Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures

doi:10.1016/j.jeurceramsoc.2018.07.012

IMR OpenIR

	Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures
	Chen, Juanjuan 1,2; Chen, Jixin 1; Zhao, Guorui 1,2; Hu, Minmin 1,3; Lei, Yiming 1,3; Li, Yueming 1,2; Zhang, Xi 1,4; Li, Jialin 1; Li, Meishuan 1
通讯作者	Chen, Jixin(jxchen@imr.ac.cn)
	2018-12-01
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	38 期号:15 页码:4867-4873
摘要	High-temperature mechanical and thermal properties of h-BN based composite containing amorphous silica and Yb-riched silicate glass phases were systematically investigated in this work. Owing to anisotropic microstructure of h-BN matrix, the obtained composite demonstrates anisotropic mechanical and thermal properties. The composite possesses higher elastic modulus at 1673 K than that at room temperature and presents excellent high-temperature stiffness. Flexural strengths in parallel and perpendicular directions reach 496 +/- 22 and 258 +/- 21 MPa at 1073 K, respectively, and increases by 74 and 66% compared with the room-temperature strengths of 285 +/- 4 and 155 +/- 5 MPa. The composite containing dual glass phases shows lower coefficients of thermal expansion in the temperature range of 473-900 K, the values are -1.4 x 10(-6) and 0.3 x 10(-6) K-1 for the perpendicular and parallel directions, respectively. Thermal conductivities in the perpendicular and parallel directions at 373 K are 24.8 and 14.8 W m(-1) K-1, respectively, and then decrease to 14.9 and 9.3 W m(-1) K-1 at 1473 K.
关键词	h-BN Dual glass phases Anisotropy High-temperature flexural strength Thermal properties
资助者	National Natural Science Foundation of China
DOI	10.1016/j.jeurceramsoc.2018.07.012
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50802099] ; National Natural Science Foundation of China[51072201]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000444664300006
出版者	ELSEVIER SCI LTD
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/129444
专题	中国科学院金属研究所
通讯作者	Chen, Jixin
作者单位	1.Chinese Acad Sci, Inst Met Res, High Performance Ceram Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 4.Xian Golden Mt Ceram Composites Co Ltd, Xian 710065, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Juanjuan,Chen, Jixin,Zhao, Guorui,et al. Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(15):4867-4873.
APA	Chen, Juanjuan.,Chen, Jixin.,Zhao, Guorui.,Hu, Minmin.,Lei, Yiming.,...&Li, Meishuan.(2018).Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(15),4867-4873.
MLA	Chen, Juanjuan,et al."Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.15(2018):4867-4873.