Preparation of porous YB4 ceramics using a combination of in-situ borothermal reaction and high temperature partial sintering

IMR OpenIR

	Preparation of porous YB4 ceramics using a combination of in-situ borothermal reaction and high temperature partial sintering
	Guo, Qiangqiang; Xiang, Huimin; Sun, Xin; Wang, Xiaohui; Zhou, Yanchun; yczhou@imr.ac.cn
	2015
发表期刊	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN	0955-2219
卷号	35 期号:13 页码:3411-3418
摘要	A novel method for preparing high porosity and high strength porous YB4 ceramics was developed combining the in-situ borothermal reaction synthesis and high temperature partial sintering. Since pores could be produced by gasses such as B2O3 and CO generated in the reaction between Y2O3 and B4C, high porosity porous YB4 ceramics were obtained after synthesis at 1650 degrees C and sintering at 1780 degrees C for 2 h in vacuum, respectively. Using this new and simple method, porous YB4 with controllable porosities of 60-70% and compressive strengths of 7.4-19.9 MPa were obtained depending on the green density. The phase composition, porosity, pore size distribution and compressive behavior of the porous YB4 ceramics were systematically investigated. The effects of vacuum on synthesis of YB4 and pore forming mechanism were also discussed in detail. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[guo, qiangqiang ; xiang, huimin ; sun, xin ; zhou, yanchun] aerosp res inst mat & proc technol, sci & technol adv funct composite lab, beijing 100076, peoples r china ; [wang, xiaohui] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Yb4 Ultra-high Temperature Ceramics Porous Materials Strength Borothermal Reaction
资助者	National Outstanding Young Scientist Foundation [59925208]; National Natural Science Foundation of China [U1435206]
收录类别	sci
语种	英语
WOS记录号	WOS:000359029300006
引用统计	被引频次：26[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/321006/75077
专题	中国科学院金属研究所
通讯作者	yczhou@imr.ac.cn
推荐引用方式 GB/T 7714	Guo, Qiangqiang,Xiang, Huimin,Sun, Xin,et al. Preparation of porous YB4 ceramics using a combination of in-situ borothermal reaction and high temperature partial sintering[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2015,35(13):3411-3418.
APA	Guo, Qiangqiang,Xiang, Huimin,Sun, Xin,Wang, Xiaohui,Zhou, Yanchun,&yczhou@imr.ac.cn.(2015).Preparation of porous YB4 ceramics using a combination of in-situ borothermal reaction and high temperature partial sintering.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,35(13),3411-3418.
MLA	Guo, Qiangqiang,et al."Preparation of porous YB4 ceramics using a combination of in-situ borothermal reaction and high temperature partial sintering".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 35.13(2015):3411-3418.