摘要
以氧化铅或氧化铋、氧化钙、硼酸、硫酸锌、二氧化硅和氧化镁为原料。通过高温熔融和微晶化，成功地制备出具有低熔点高膨胀系数的PbO系统微晶封接玻璃和Bi2O3系统微晶封接玻璃．分别用X射线衍射分析（XRD）、光学显微镜、热膨胀系数分析（DIL）和差热曲线分析（DTA）等方法对样品或原料混合物进行表征，分别讨论了PbO系统和Bi2O3系统微晶封接玻璃在制备工艺过程中对样品性能产生影响的主要因素．结果表明：Bi2O3系统和PbO系统都能形成玻璃；都可微晶化;PbO系微晶封接玻璃的熔化温度为365℃，最佳微晶化温度和时间分别为350～400℃和2h，膨胀系数为12．68×10^-6／V；Bi2O3系微晶封接玻璃的熔化温度为460℃，最佳微晶化温度和时间分别为440～500℃和2h，膨胀系数为12．06×10^-6／℃．
The PbO system and the Bi2 03 system sealing glass ceramics with low melting temperature and high expansion coefficient were successfully prepared by sintering and crystallization and using PbO or Bi2O3, CaO, H3BO3, SiO2, MgO and ZnSO4 · 7 H2O as raw materials. All the samples and the mixed raw materials were characterized by employing XRD, optical microscope,DIL and DTA techniques. The main factors affecting the properties of all the samples of both flint sealing glass ceramics and Bi2O3 system lead-free sealing glass ceramics were discussed. It is indicated that both systems can form glass states and glass ceramics states,and the melting temperature of flint sealing glass ceramics is 365℃ ,the optimal micro-crystallizing temperature and times are 350～400℃ and 2 h, the thermal expansion coefficient is 12.68 × 10^-6/℃;the melting temperature of lead-free sealing glass ceramics is 460℃, the optimal micro-crystallizing temperatures and times are 440～500℃ and 2 h,the thermal expansion coefficient is 12.06 × 10^-6/℃.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第6期812-815,共4页
Journal of Xiamen University：Natural Science
关键词
封接玻璃
无铅玻璃
微晶玻璃
热膨胀系数
sealing glass
lead-free glass
glass ceramics
thermal expansion coefficient
