In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis

doi:10.1016/j.jcrysgro.2020.125816

	In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis
	Li, Huidong 1; Yang, Liping 1,2; Cao, ChengCheng 1; Tao, Ye 1; Zhong, Qiu 1; Xu, Zhijun 1; Luo, Caiyun 1; Wang, Wenbing 1
刊名	JOURNAL OF CRYSTAL GROWTH
	2020-10-01
卷号	547 页码:6
关键词	Crystallites Nucleation Confocal laser scanning microscopy Crystal growth Glass
ISSN号	0022-0248
DOI	10.1016/j.jcrysgro.2020.125816
通讯作者	Yang, Liping(lpyang@mail.sic.ac.cn)
英文摘要	In this work, we have observed the crystallization process of Li2O-Al2O3-SiO2 glass using a high-temperature confocal laser scanning microscope and studied its crystallization kinetics with differential thermal analysis. The value of activation energy has been calculated out using Kissinger and Flynn-Wall-Ozawa methods. The results show that LiAlSi3O8 crystal particles precipitate at 850 degrees C, and then gradually grow to 75 um with the irregular hexagonal structure until 980 degrees C. The activation energy of two exothermal peaks through Kissinger method is 121.78 +/- 13.42 and 189.74 +/- 7.76 kJ/mol. Glass transition and crystallization both have remarkable kinetics effects, and kinetic crystallization parameter, Avrami index (n), indicates that crystallization mechanism of two exothermal peaks corresponds to one-dimensional and surface crystallization, respectively.
资助项目	National Key Research Program of China[2016YFF0101705] ; Shanghai Technical Platform for testing on inorganic materials[19DZ2290700]
WOS关键词	CERAMICS ; MICROSTRUCTURE ; PYROLYSIS
WOS研究方向	Crystallography ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000567415300008
内容类型	期刊论文
源URL	[http://119.78.100.183/handle/2S10ELR8/291068]
专题	中国科学院上海药物研究所
通讯作者	Yang, Liping
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, Anal & Testing Ctr Inorgan Mat, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
推荐引用方式 GB/T 7714	Li, Huidong,Yang, Liping,Cao, ChengCheng,et al. In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis[J]. JOURNAL OF CRYSTAL GROWTH,2020,547:6.
APA	Li, Huidong.,Yang, Liping.,Cao, ChengCheng.,Tao, Ye.,Zhong, Qiu.,...&Wang, Wenbing.(2020).In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis.JOURNAL OF CRYSTAL GROWTH,547,6.
MLA	Li, Huidong,et al."In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis".JOURNAL OF CRYSTAL GROWTH 547(2020):6.