Fiber reinforced highly porous gamma-Y2Si2O7 ceramic fabricated by foam-gelcasting-freeze drying method

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	Fiber reinforced highly porous gamma-Y2Si2O7 ceramic fabricated by foam-gelcasting-freeze drying method
	Wu, Z; Sun, LC; Pan, JJ; Wang, JY; Wang, JY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, High Performance Ceram Div, Shenyang 110016, Liaoning, Peoples R China.
刊名	SCRIPTA MATERIALIA
	2018-03-15
卷号	146 页码:331-334
关键词	X-ray Tomography Thermal-conductivity Cellular Ceramics High-strength Ysz Ceramics Porosity
ISSN号	1359-6462
英文摘要	Advanced thermal insulators request excellent properties, including low thermal conductivity, lightweight (high porosity) and high strength. It was a challenge to coordinatively achieve extremely high porosity (>90%) and high strength. We herein report a foam-gelcasting-freeze drying method to process highly porous ceramic. Yttria-Stabilized Zirconia (YSZ) fiber strengthening approach is incorporated to enhance its mechanical property. Our YSZ fiber reinforced porous gamma-Y2Si2O7 ceramic shows very high porosity (92.9%), high compressive strength (1.35 MPa), and extremely low thermal conductivity (0.090 W/(m.K)). The developed highly porous composite is a promising high-temperature thermal insulator. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Advanced thermal insulators request excellent properties, including low thermal conductivity, lightweight (high porosity) and high strength. It was a challenge to coordinatively achieve extremely high porosity (>90%) and high strength. We herein report a foam-gelcasting-freeze drying method to process highly porous ceramic. Yttria-Stabilized Zirconia (YSZ) fiber strengthening approach is incorporated to enhance its mechanical property. Our YSZ fiber reinforced porous gamma-Y2Si2O7 ceramic shows very high porosity (92.9%), high compressive strength (1.35 MPa), and extremely low thermal conductivity (0.090 W/(m.K)). The developed highly porous composite is a promising high-temperature thermal insulator. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	National Key R&D Program of China [2017YFB0703201]; Natural Science Foundation of China [51372252, 51772302]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79430]
专题	金属研究所_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, High Performance Ceram Div, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wu, Z,Sun, LC,Pan, JJ,et al. Fiber reinforced highly porous gamma-Y2Si2O7 ceramic fabricated by foam-gelcasting-freeze drying method[J]. SCRIPTA MATERIALIA,2018,146:331-334.
APA	Wu, Z,Sun, LC,Pan, JJ,Wang, JY,&Wang, JY .(2018).Fiber reinforced highly porous gamma-Y2Si2O7 ceramic fabricated by foam-gelcasting-freeze drying method.SCRIPTA MATERIALIA,146,331-334.
MLA	Wu, Z,et al."Fiber reinforced highly porous gamma-Y2Si2O7 ceramic fabricated by foam-gelcasting-freeze drying method".SCRIPTA MATERIALIA 146(2018):331-334.