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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 5: 1031 - 1035

DOI: https://doi.org/10.3724/SP.J.1077.2009.01031

Research Paper

Stability of Microstructure and Properties of Transparent Li2O-Al2O3-SiO2 Glass-ceramics

  • LI Yao-Hui ,
  • CAO Jian-Wei ,
  • LU Jin-Shan ,
  • LIANG Kai-Ming
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  • (1. Department of Materials and Engineering, Tsinghua University, Beijing 100084, China; 2. School of Materials and Engineering, Nanchang HangKong University, Jiangxi 330063, China)

Received date: 2008-12-25

  Revised date: 2009-02-11

  Online published: 2009-09-20

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Abstract

Transparent and low thermal expansion Li2O-Al2O3-SiO2 glass-ceramics were prepared by addition of TiO2 and ZrO2 as nucleation agents. The effects of heat-treatment temperature and time on the crystallization, and phase transition behavior were discussed and the stabilities of microstructure and properties were investigated by DTA, XRD and SEM. Isothermal transformation curve of the LAS glass was also measured. The results show that β-quartz solid solution is stable in the temperature range from 750℃ to 900℃ and in long annealing time. Further more, LAS glass-ceramics have excellent stability in high temperature, which is still transparent and low thermal expansion after heattreated at 850℃ for 5h. The stability of structure and properties mainly attribute to the high nucleation efficiency of the TiO2 and ZrO2 mixed nucleation agents.

Key words： Li2O-Al2O3-SiO2 glass-ceramics; stability; microstructure; property

Cite this article

LI Yao-Hui , CAO Jian-Wei , LU Jin-Shan , LIANG Kai-Ming . Stability of Microstructure and Properties of Transparent Li2O-Al2O3-SiO2 Glass-ceramics[J]. Journal of Inorganic Materials, 2009 , 24(5) : 1031 -1035 . DOI: 10.3724/SP.J.1077.2009.01031

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