Studies on Improvement of PbO Glass and Preparation and Properties of Bi2O3 System Sealing Glass Ceramics
- 材料学院－学位论文 
Abstract In recent years, high PbO glass ceramics with high thermal expansion coefficient α have been used widely in electron device field as sealing materials. It is the key-point to make its sealing temperature low enough and enhance α to its best. Since 1st July 2006,The environment would be polluted badly by PbO because of its strong volatility, the injunction called “Restrictions on Ha...