Preparation and Property of beta-eucryptite Ceramics Possessing Zero Coefficient of Thermal Expansion with CaO-B2O3 Glass as Sintering Aid

doi:10.15541/jim20170229

	Preparation and Property of beta-eucryptite Ceramics Possessing Zero Coefficient of Thermal Expansion with CaO-B2O3 Glass as Sintering Aid
	Yao Xiao-Gang ; Ren Hai-Shen ; Jiang Shao-Hu ; Zhang Yi ; Gu Zhong-Yuan ; Lin Hui-Xing
刊名	JOURNAL OF INORGANIC MATERIALS
	2018
卷号	33 期号:4 页码:385
关键词	beta-eucryptite CaO-B2O3 glass micro-crack coefficient of thermal expansion
ISSN号	1000-324X
DOI	10.15541/jim20170229
英文摘要	beta-eucryptite ceramics with zero coefficient of thermal expansion (CTE) were prepared via solid state reaction method, adding CaO-B2O3 glass (CB glass) as sintering aid. The thermal property of CB glass and the crystalline phase, micro-structure of beta-eucryptite ceramic samples were investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscope (SEM), respectively. The results indicate that CB glass is a good sintering aid. It significantly decreased the sintering temperature of beta-eucryptite ceramics (from 1300 degrees C to 1150 degrees C) and increased the relative bulk density (from 93.3% to 97.5%). No micro-cracks were found in beta-eucryptite ceramics aided with CB glass. beta-eucryptite ceramics added with 4wt%, 6wt% CB glass possessed zero CTE of 0.02x10(-6)/K and 0.4x10(-6)/K ranging from room temperature to 200 degrees C, respectively. However, a new phase LiAlO2 with extremely high positive CTE appears in the beta-eucryptite ceramics added with 8wt% CB glass which leads to a positive CTE of 3.46x10(-6)/K.
学科主题	Materials Science, Ceramics
出版者	SCIENCE PRESS
WOS记录号	WOS:000432434500004
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24980]
专题	中国科学院上海硅酸盐研究所
作者单位	1.[Yao Xiao-Gang 2.Ren Hai-Shen 3.Jiang Shao-Hu 4.Zhang Yi 5.Gu Zhong-Yuan 6.Chinese Acad Sci, Shanghai Inst Ceram, Informat Mat & Devices Res Ctr, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Yao Xiao-Gang,Ren Hai-Shen,Jiang Shao-Hu,et al. Preparation and Property of beta-eucryptite Ceramics Possessing Zero Coefficient of Thermal Expansion with CaO-B2O3 Glass as Sintering Aid[J]. JOURNAL OF INORGANIC MATERIALS,2018,33(4):385, 389.
APA	Yao Xiao-Gang,Ren Hai-Shen,Jiang Shao-Hu,Zhang Yi,Gu Zhong-Yuan,&Lin Hui-Xing.(2018).Preparation and Property of beta-eucryptite Ceramics Possessing Zero Coefficient of Thermal Expansion with CaO-B2O3 Glass as Sintering Aid.JOURNAL OF INORGANIC MATERIALS,33(4),385.
MLA	Yao Xiao-Gang,et al."Preparation and Property of beta-eucryptite Ceramics Possessing Zero Coefficient of Thermal Expansion with CaO-B2O3 Glass as Sintering Aid".JOURNAL OF INORGANIC MATERIALS 33.4(2018):385.