Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength

IMR OpenIR

	Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength
	Wu, Z; Sun, LC; Wang, JY; Wang, JY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Highperformance Ceram Div, Shenyang 110016, Peoples R China.
	2016-10-01
发表期刊	CERAMICS INTERNATIONAL
ISSN	0272-8842
卷号	42 期号:13 页码:14894-14902
摘要	The emerging porous Y2SiO5 ceramic is regarded as a promising candidate of thermal insulator owing to its very low thermal conductivity. However, recent works on porous Y2SiO5 are confronted with severe problems such as large linear shrinkage (18.51-20.8%), low porosity (47.74-62%) and low strength (24.45-16.51 MPa) at high sintering temperatures (1450-1500 degrees C). In this work, highly porous Y2SiO5 ceramic with low shrinkage and excellent high-temperature strength was fabricated by in-situ foam-gelcasting method at 1550 degrees C. The as-prepared sample has unique multiple pore structures, low linear shrinkages of 6.3-4.5%, controllable high porosities of 60.7-88.4%, high compressive strengths of 38.2-0.90 MPa, and low thermal conductivities of 0.126-0.513 W/(m K) (porosity: 87.1-60.2%). The effects of relative density on relative strength, as well as porosity on thermal conductivity were quantitatively discussed. The present results indicate that porous Y2SiO5 is the potential high-temperature thermal insulation material of light weight, low thermal conductivity, and high strength. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
部门归属	[wu, zhen ; sun, luchao ; wang, jingyang] chinese acad sci, inst met res, shenyang natl lab mat sci, highperformance ceram div, shenyang 110016, peoples r china
关键词	Porous Y2sio5 Ceramic Low Linear Shrinkage High Porosity High-temperature Strength Low Thermal Conductivity
学科领域	Materials Science, Ceramics
资助者	National Natural Science Foundation of China [51372252, 51402313]
收录类别	sci
语种	英语
WOS记录号	WOS:000381171600081
引用统计	被引频次：20[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/321006/76269
专题	中国科学院金属研究所
通讯作者	Wang, JY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Highperformance Ceram Div, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Wu, Z,Sun, LC,Wang, JY,et al. Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength[J]. CERAMICS INTERNATIONAL,2016,42(13):14894-14902.
APA	Wu, Z,Sun, LC,Wang, JY,&Wang, JY .(2016).Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength.CERAMICS INTERNATIONAL,42(13),14894-14902.
MLA	Wu, Z,et al."Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength".CERAMICS INTERNATIONAL 42.13(2016):14894-14902.