Sintering properties of sol-gel derived lithium disilicate glass ceramics

doi:10.1007/s10971-018-4738-3

	Sintering properties of sol-gel derived lithium disilicate glass ceramics
	Wang, Feng 1; Li, Ke ; Ning, Congqin
刊名	JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
	2018
卷号	87 期号:2 页码:372
关键词	Sol-gel Lithium disilicate Glass-ceramics Pressureless sintering
ISSN号	0928-0707
DOI	10.1007/s10971-018-4738-3
英文摘要	Lithium disilicate (Li2Si2O5) glass-ceramics were fabricated through two sol-gel methods: the nitrate route and the alkoxide route. Thermal analysis revealed different crystallization processing of two gel-derived powders. Li2Si2O5 powders were obtained after heat treatment at 800 A degrees C. These powders were pressed and pressureless sintered under 900-1030 A degrees C. Microstructure of sintered samples revealed the grain size and morphology of Li2Si2O5 ceramics. Although grain size in both samples increased with increasing sintering temperature, samples from the alkoxide route derived powders had more uniform grain size and pore distribution. In addition, open porosity decreased in both samples with increasing sintering temperature. Unlike familiar nucleation that resulted in grain growth mechanism, the Li2Si2O5 particles developed into irregular large size grains at first, and then grew into rod-shaped grains. [GRAPHICS] Lithium disilicate glass-ceramics were fabricated through two sol-gel methods. New grain growth mechanism of rodlike Li2Si2O5 grains was illustrated. Sintering property of sol-gel derived Li2Si2O5 is more like that of ceramics.
学科主题	Materials Science, Ceramics
出版者	SPRINGER
WOS记录号	WOS:000441753800013
资助机构	The work was financially supported by Shanghai Committee of Science and Technology, China (17441904100). ; The work was financially supported by Shanghai Committee of Science and Technology, China (17441904100).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24757]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Norwegian Univ Sci & Technol NTNU, Nanomech Lab, Dept Struct Engn, N-7491 Trondheim, Norway
推荐引用方式 GB/T 7714	Wang, Feng,Li, Ke,Ning, Congqin. Sintering properties of sol-gel derived lithium disilicate glass ceramics[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2018,87(2):372, 379.
APA	Wang, Feng,Li, Ke,&Ning, Congqin.(2018).Sintering properties of sol-gel derived lithium disilicate glass ceramics.JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,87(2),372.
MLA	Wang, Feng,et al."Sintering properties of sol-gel derived lithium disilicate glass ceramics".JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 87.2(2018):372.