Characteristics of Bi-based glass powders with various glass transition temperatures prepared by spray pyrolysis

Spherical shape, submicron, and non-aggregated bismuth-based glass powders were prepared. Glass powders with low glass transition temperature melted the silver powders at firing temperatures of as low as 400 °C. After firing at 400 °C, the specific resistances of the silver conducting films obtained from glass powders with glass transition temperatures of 498 and 373 °C were 21.6 and 5.8 μΩ cm, respectively. After firing at 450 and 500 °C, the specific resistances of the silver conducting films obtained from glass powders with glass transition temperature of 425 °C were the lowest, i.e., 3.0 and 3.1 μΩ cm, respectively.