Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (2): 167-171.DOI: 10.3724/SP.J.1077.2014.13249

• Research Paper • Previous Articles     Next Articles

Preparation of Bi4Si3O12-based Glass-ceramics and Effect of Heat Treatments on Optical Properties

WANG Chen-Yang1,2, HU Guan-Qin2, WANG Hong2, ZHAO Jing-Tai2   

  1. (1. Key Laboratory of Transparent Opto-Functional Inorganic Materials of Chinese Academy of Sciences, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China; 2. Graduate University of the Chinese Academy of Sciences, Beijing 100039, China)
  • Received:2013-05-06 Revised:2013-07-28 Published:2014-02-20 Online:2014-01-17
  • About author:WANG Chen-Yang. E-mail:wangcy@student.sic.ac.cn
  • Supported by:

    National Natural Science Foundation of China (50990304)

Abstract: Bi4Si3O12-based glass-ceramics with different crystalline volume fractions and transparency were prepared by the two-step heat-treatment of Bi2O3-SiO2 based glass. The experimental results show that the two-step heat-treatment is favorable to control the amount and size of crystallized grains in BSO-based glass-ceramics, which correspondingly affects the transparency and optical properties of the obtained glass-ceramics. The transmission spectra of these samples indicate that the transparency of BSO-based glass-ceramic (annealed at 600℃ for 1 h, then heated to 800℃ and held for 1 h) can reach 73.1% (> 500 nm). The BSO-based glass-ceramics maintain similar optical property as that of BSO single crystal, that is, the emission of such glass-ceramics is located in visible light wavelength of 380–680 nm, and their optical intensities are almost proportional to the crystalline volume fraction. The optical intensity of BSO-based glass-ceramic at low temperature (14 K) is increased by 12 times as against that at room temperature.

Key words: Bi4Si3O12, glass-ceramic, heat treatment, optical properties

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