Journal of Inorganic Materials ›› 2013, Vol. 28 ›› Issue (7): 780-784.DOI: 10.3724/SP.J.1077.2013.12592

• Research Paper • Previous Articles     Next Articles

Investigation on Crystallization Behavior of Y2O3-Al2O3-SiO2 Glass Prepared by High-gravity Combustion Synthesis

YANG Zeng-Chao1,2, LIU Guang-Hua2, XU Li-Hua1, LI Jiang-Tao2, GUO Shi-Bin2   

  1. (1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China)
  • Received:2012-10-01 Revised:2012-11-15 Published:2013-07-20 Online:2013-06-19
  • About author:YANG Zeng-Chao. E-mail: yangzengchao5@163.com
  • Supported by:

    National Natural Science Foundation of China (50932006, 51002163); Beijing Natural Science Foundation (2112043)

Abstract: The crystallization behavior of Y2O3-Al2O3-SiO2 glass prepared by high-gravity combustion synthesis was investigated by isothermal annealing experiments. The effect of annealing condition on the crystallization behavior of the glass was discussed according to the Y2O3-Al2O3-SiO2 ternary phase diagram. From experimental results, the crystallization behavior of the glass strongly depended on the annealing temperature and the content of SiO2. After being annealed at 1050℃, the sample showed a graded phase distribution along the high-gravity direction, consisting of Al6Si2O13 glass-ceramic, pure glass and χ-Al2O3 glass-ceramic. At annealing temperature of 1100℃, Y3Al5O12 and Y2Si2O7 were precipitated as the major crystalline phases. When the annealing temperature further increased to 1200℃, the predominant crystalline phase was Y3Al5O12. The research provides a possible way to prepare Y2O3-Al2O3-SiO2 glass-ceramics by integrating high-gravity combustion synthesis with post annealing treatment.

Key words: high-gravity combustion synthesis, Y2O3-Al2O3-SiO2 glass, annealing, crystallization

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