Effects of ZrB2 contents on the mechanical properties and thermal shock   resistance of B4C-ZrB2 ceramics

doi:10.1016/j.matdes.2015.01.002

CORC > 北京大学 > 工学院

	Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics
	He, Rujie ; Jing, Li ; Qu, Zhaoliang ; Zhou, Zhili ; Ai, Shigang ; Kai, Wei
刊名	materials design
	2015
关键词	Carbide boride Ceramics Microstructure Mechanical properties Thermal shock resistance B4C CERAMICS COMPOSITES MICROSTRUCTURE DENSIFICATION BORON PARAMETERS ADDITIVES TOUGHNESS OXIDATION BEHAVIOR
DOI	10.1016/j.matdes.2015.01.002
英文摘要	B4C-ZrB2 ceramics with different ZrB2 contents were fabricated using hot-pressing technique. The introduction of ZrB2 greatly promotes the sintering process, and all B4C-ZrB2 samples achieve full densification. With the ZrB2 content increasing from 10 to 40 vol.%, the Vickers hardness ranges from 28.8 to 34.6 GPa, the flexure strength ranges from 233.3 to 523.4 MPa, and the fracture toughness ranges from 6.0 to 7.0 MPa m(1/2), respectively. The thermal shock properties of B4C-ZrB2 ceramics were also investigated using water quenching method. The critical thermal shock temperature difference (DTc) for B4C-10 vol.% ZrB2, B4C-20 vol.% ZrB2, B4C-30 vol.% ZrB2 and B4C-40 vol.% ZrB2 ceramics are 293.5, 337.5, 365.4 and 373.5 degrees C, respectively. Considering the ceramic should maintain a relatively high initial strength, B4C-30 vol.% ZrB2 is found to exhibit the optimal thermal shock behavior. (C) 2015 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350221200006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Materials Science, Multidisciplinary; SCI(E); EI; 3; ARTICLE; sgai@pku.edu.cn; 56-61; 71
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154065]
专题	工学院
推荐引用方式 GB/T 7714	He, Rujie,Jing, Li,Qu, Zhaoliang,et al. Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics[J]. materials design,2015.
APA	He, Rujie,Jing, Li,Qu, Zhaoliang,Zhou, Zhili,Ai, Shigang,&Kai, Wei.(2015).Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics.materials design.
MLA	He, Rujie,et al."Effects of ZrB2 contents on the mechanical properties and thermal shock resistance of B4C-ZrB2 ceramics".materials design (2015).