Fabrication of porous SiC ceramics through a modified gelcasting and solid state sintering

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 结构陶瓷与复合材料工程研究中心 > 期刊论文

	Fabrication of porous SiC ceramics through a modified gelcasting and solid state sintering
	Wang, Feng 1,2; Yin, Jinwei 1; Yao, Dongxu 1; Xia, Yongfeng 1; Zuo, Kaihui 1; Xu, Jiaqiang 2; Zeng, Yuping 1
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2016-01-27
卷号	654 页码:292-297
关键词	Porous SiC ceramics Gelcasting Isobam Solid state sintering Starch
英文摘要	With starch as pore forming agent, porous silicon carbide (SiC) ceramics were successfully fabricated by gelcasting. A novel and simple gelling system of isobutylene and maleic anhydride (Isobam) can gel in air at room temperature was used. The rheological behaviors of SiC slurries were investigated as a function of starch content. The gelled SiC green bodies were sintered at 2050-2150 degrees C through solid state sintering with B4C and carbon as sintering additives. Porosity of the porous SiC ceramics sintered at 2100 degrees C was well controlled from 34.20% to 42.68% with the starch content increasing from 0 to 20 wt%. With increasing the sintering temperature from 2050 to 2150 degrees C, flexural strength and porosity of porous SiC ceramics with 20 wt% starch varied from 61.0 to 128.0 MPa and 48.1% to 34.2%, respectively. The porous SiC ceramics fabricated with 20 wt% starch addition and sintered at 2100 degrees C were proved to possess excellent thermal shock resistance. The ceramics after water-quenching at 1500 degrees C showed an average flexural strength of 95.8 MPa, which was higher than the strength of samples without quenching. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]	SILICON-CARBIDE CERAMICS ; THERMAL-SHOCK RESISTANCE ; OXIDE ADDITIVES ; MECHANICAL-PROPERTIES ; MASS-SPECTROMETRY ; POWDER BEDS ; MICROSTRUCTURE ; VAPORIZATION ; SIC-AL2O3 ; STRENGTH
收录类别	SCI
语种	英语
WOS记录号	WOS:000370111100034
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23178]
专题	上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 2.Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China
推荐引用方式 GB/T 7714	Wang, Feng,Yin, Jinwei,Yao, Dongxu,et al. Fabrication of porous SiC ceramics through a modified gelcasting and solid state sintering[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2016,654:292-297.
APA	Wang, Feng.,Yin, Jinwei.,Yao, Dongxu.,Xia, Yongfeng.,Zuo, Kaihui.,...&Zeng, Yuping.(2016).Fabrication of porous SiC ceramics through a modified gelcasting and solid state sintering.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,654,292-297.
MLA	Wang, Feng,et al."Fabrication of porous SiC ceramics through a modified gelcasting and solid state sintering".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 654(2016):292-297.