Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (4): 48-51.

Previous Articles     Next Articles

Effect of Mixed Alkali on the Thermal Stability of Tellurite Glasses

Chen Bing-yan1  Chen Dong-dan1  Liu Yue-hui1  Jiang Zhong-hong1,2   

  1. 1．Institute of Optical Communication Materials‚South China Univ．of Tech．‚Guangzhou510640‚Guangdong‚China；
    2．Shanghai Institute of Optics and Fine Mechanics‚the Chinese Academy of Sciences‚Shanghai201800‚China
  • Received:2003-10-05 Online:2004-04-20 Published:2015-09-08
  • Contact: 陈炳炎（1978－）‚男‚硕士研究生‚主要从事光通信材料研究． E-mail:cby1978＠sina.com
  • About author:陈炳炎（1978－）‚男‚硕士研究生‚主要从事光通信材料研究．

PDF

575

Abstract: Tellurite glasses of0．7TeO 2 －0．2ZnO－xR 2 O－（0．1－x）R′2 O with various mole ratios of Li 2 O to Na 2 O‚Li 2 O to K 2 O and Na 2 O to K 2 O were prepared．With the measurement of vitrification point T g and crystalliza-tion temperature T x by DSC‚the effect of the mixed alkali on the thermal stability of tellurite glasses were investigat -ed．The results indicate that the glass system is of excellent thermal stability when the mole ratios of Li 2 O to Na 2 O‚Li 2 O to K 2 O and Na 2 O to K 2 O are respectively14∶‚23∶and14∶‚and that the0．7TeO 2 －0．2ZnO－xLi 2 O－（0．1－x）K 2 O glass system is generally more thermally stable than the0．7TeO 2 －0．2ZnO－xLi 2 O－（0．1－x）Na 2 O systemwhile more unstable than the0．7TeO 2 －0．2ZnO－xNa 2 O－（0．1－x）K 2 O system．

Key words:  tellurite glass, thermal stability, mixed alkali effect

CLC Number: