无机材料学报

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氟硅酸盐微晶玻璃的热膨胀性能研究

陈伟民; 英廷照+; 陈扬枝++; 陈楷   

  1. 中国电子产品可靠性与环境试验研究所; 广州 510610; +华南理工大学无机材料系; 广州 510641; ++华南理工大学机电工程系 广州 510641
  • 收稿日期:1998-04-27 修回日期:1998-05-20 出版日期:1999-04-20 网络出版日期:1999-04-20

Thermal Expansion of Fluosilicate Glass-ceramics

CHEN Wei-Min; YING Ting-Zhao+; CHEN Yang-Zhi++; CHEN Kai +   

  1. China Electronic Product Reliability and Environmental Testing Research Institute; P.O.Box 1501-05 Guangzhou 510610 China; +Ceramics Materials Department; South China University of Technology Guangzhou 510641 China; ++Department of Mechanical & Electrical Engineering, South China University of Technology Guangzhou 510641 China
  • Received:1998-04-27 Revised:1998-05-20 Published:1999-04-20 Online:1999-04-20

摘要: 氟硅酸盐微晶玻璃的热膨胀性能主要取决于微晶玻璃的晶相组成及其相对含量.透辉石结晶相的含量增加使微晶玻璃的热膨胀系数降低,与此相反碱镁闪石结晶相的含量增加却使微晶玻璃的膨胀系数增加.K2O-MgO-SiO2-CaF2系统氟硅酸盐微晶玻璃的最小热膨胀系数为:78.4×10-7(20~300℃);最大热膨胀系数为:85.6×10-7(20~300℃).

关键词: 热膨胀系数, 微晶玻璃, 氟硅酸盐

Abstract: The thermal expansion coefficient of fluosilicate glass-ceramics is mainly affected by the crystal phases and their amount.Diopside crystals in fluosilicate glass-ceramics tend to lower thermal expansion coefficient, while richterite crystals in fluosilicate glass-ceramics tend to increase thermal expansion coefficient.The lowest thermal edpansion coefficient of K2O-MgO-SiO2-CaF2 fluosilicate glass-ceramics is 78.4×10-7(20-300℃), while the highest thermal expansion coefficient of this glass-ceramics is 85.6×10-7(20-300℃)

Key words: thermal expansion coefficient, glass-ceramics, fluosilicate

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