New multifunctional porous Yb2SiO5 ceramics prepared by freeze casting

doi:10.1016/j.ceramint.2015.12.161

CORC > 北京大学 > 工学院

	New multifunctional porous Yb2SiO5 ceramics prepared by freeze casting
	Zhang, Rubing ; Han, Bingyu ; Fang, Daining
刊名	CERAMICS INTERNATIONAL
	2016
关键词	Porous ceramics Mechanical properties Thermal conductivity ENVIRONMENTAL BARRIER COATINGS THERMAL-CONDUCTIVITY SILICON-NITRIDE DIELECTRIC-PROPERTIES COMPOSITES MICROSTRUCTURE FABRICATION Y2SIO5 SI3N4
DOI	10.1016/j.ceramint.2015.12.161
英文摘要	New porous Yb2SiO5 ceramics were prepared by a water-based freeze casting technique using synthesized Yb2SiO5 powders. The prepared porous Yb2SiO5 ceramics exhibit multiple pore structures, including lamellar channel pores and small pores, in its skeleton. The effects of the solid content and sintering temperature on the pore structure, porosity, dielectric and mechanical properties of the porous Yb2SiO5 ceramics were investigated. The sample with 20 vol% solids content prepared at 1550 degrees C exhibited an ultra-low linear shrinkage (i.e. 4.5%), a high porosity (i.e. 79.1%), a high compressive strength (i.e. 4.9 MPa), a low dielectric constant (i.e. 2.38) and low thermal conductivity (i.e. 0.168 W/(m K)). These results indicate that porous Yb2SiO5 ceramics are good candidates for ultra-high temperature broadband radome structures and thermal insulator materials. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.; National Natural Science Foundation of China [91216301, 11227801, 11472038]; Fundamental Research Fund for the Central Universities [2014RC047]; SCI(E); EI; ARTICLE; rbzhang@bjtu.edu.cn; 5; 6046-6053; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437466]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Rubing,Han, Bingyu,Fang, Daining. New multifunctional porous Yb2SiO5 ceramics prepared by freeze casting[J]. CERAMICS INTERNATIONAL,2016.
APA	Zhang, Rubing,Han, Bingyu,&Fang, Daining.(2016).New multifunctional porous Yb2SiO5 ceramics prepared by freeze casting.CERAMICS INTERNATIONAL.
MLA	Zhang, Rubing,et al."New multifunctional porous Yb2SiO5 ceramics prepared by freeze casting".CERAMICS INTERNATIONAL (2016).