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无机材料学报

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GeO2对PbO-B2O3-ZnO低熔封接玻璃结构与性能的影响

成茵, 肖汉宁, 郭伟明   

  1. 湖南大学材料科学与工程学院, 长沙 410082
  • 收稿日期:2005-05-19 修回日期:2005-06-20 出版日期:2006-05-20 网络出版日期:2006-05-20

Effects of GeO2 on Structure and Properties of PbO-B2O3-ZnO Glass

CHENG Yin, XIAO Han-Ning, GUO Wei-Ming   

  1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China
  • Received:2005-05-19 Revised:2005-06-20 Published:2006-05-20 Online:2006-05-20

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摘要： 用DSC、IR、XRD等研究了GeO2添加量对PbO-B2O3-ZnO系玻璃结构及性能的影响. 结果表明, 在PbO-B2O3-ZnO系封接玻璃中, 引入0.4～2.0wt%的GeO2可有效地抑制玻璃析晶, 降低封接温度. GeO2含量为0.7wt%左右时, 玻璃稳定性最好, 封接温度最低, 仅为400 ℃, 有利于低温封接. 通过引入GeO2可在一定范围内调节PbO-B2O3-ZnO系封接玻璃的热膨胀系数.

关键词: PbO-B2O3-ZnO玻璃, 封接温度, 析晶活化能, 热膨胀

Abstract:

The effects of GeO2 on the structure and properties of PbO-B2O3-ZnO glass were investigated by DSC, IR, XRD. Results indicate that the addition of GeO2(0.4～2wt%) to PbO-B2O3-ZnO glass can suppress crystallization and decrease sealing temperature. When the content of GeO2 is 0.7 wt%, the stability of glass is the best and the sealing temperature is the lowest (400 ℃), which is a desirable material for low-temperature sealing. The coefficient of thermal expansion of PbO-B2O3-ZnO glass can be adjusted by the addition of GeO2.

Key words: PbO-B2O3-ZnO glass, sealing temperature, crystallization activation energy, thermal expansion

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