GeO_2对PbO-B_2O_3-ZnO低熔封接玻璃结构与性能的影响  

Effects of GeO_2 on Structure and Properties of PbO-B_2O_3-ZnO Glass

作　　者：成茵[1] 肖汉宁[1] 郭伟明[1] 

机构地区：[1]湖南大学材料科学与工程学院,长沙410082

出　　处：《无机材料学报》2006年第3期533-538,共6页Journal of Inorganic Materials

基　　金：国家自然基金项目(50174024)

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．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.

关 键 词：PbO-B2O3-ZnO玻璃 封接温度 析晶活化能 热膨胀 

分 类 号：TQ171[化学工程—玻璃工业]