Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (3): 20-22,28.

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Thermodynamic Properties of P2O5-SiO2-Na2O-Al2O3 Glass System

Yin Bing Deng Zai-de Yang Gang-feng Ying Ting-zhao Chen Dong-dan Jiang Zhong-hong   

  1. The National Eng．Research Center of Novel Equipment for Polymer Processing‚South China Univ．of Tech．‚
    Guangzhou510640‚Guangdong‚China
  • Received:2003-08-20 Online:2004-03-20 Published:2015-09-08
  • Contact: 印冰（1978－）‚男‚硕士研究生‚主要从事特种玻璃光纤研究. E-mail:wsbing-yin＠163.com
  • About author:印冰（1978－）‚男‚硕士研究生‚主要从事特种玻璃光纤研究.

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Abstract: The thermodynamic properties of P 2 O 5 -SiO 2 -Na 2 O-Al 2 O 3 glass system were investigated by means of differential scanning calorimetry and thermo-mechanical analysis．The characteristic tempera-ture and the thermal expansion coefficient of the system with different SiO 2 contents were then dis-cussed．The results indicate that‚with the increase in SiO 2 content‚the transition temperature （T g ） and soft temperature （T f ） of the glass increase accordingly‚while the thermal expansion coefficient decreases．

Key words: phosphate glass, silicon dioxide, thermodynamic property

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