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.
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