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

doi:10.1016/j.jeurceramsoc.2018.07.012

CORC > 金属研究所 > 中国科学院金属研究所

	Mechanical and thermal properties of h-BN based composite containing dual glass phases at elevated temperatures
	Chen, JJ ; Chen, JX ; Zhao, GR ; Hu, MM ; Lei, YM ; Li, YM ; Zhang, X 3; Li, JL ; Li, MS
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2018-12-01
卷号	38 期号:15 页码:4867-4873
关键词	h-BN Dual glass phases Anisotropy High-temperature flexural strength Thermal properties
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2018.07.012
英文摘要	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.
学科主题	Materials Science, Ceramics
语种	英语
WOS记录号	WOS:000444664300006
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79801]
专题	金属研究所_中国科学院金属研究所
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, JJ,Chen, JX,Zhao, GR,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, JJ.,Chen, JX.,Zhao, GR.,Hu, MM.,Lei, YM.,...&Li, MS.(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, JJ,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.