BOROSILICATE GLASS, COMPOSITE POWDER MATERIAL, AND COMPOSITE POWDER MATERIAL PASTE

摘要

PROBLEM TO BE SOLVED: To create a glass that can be sintered at a temperature lower than or equal to 900°C without containing PbO, has low reactivity with an electrode such as an Ag external electrode, and can contribute to improvements in the wear resistance and surface smoothness of a coating layer.SOLUTION: A borosilicate glass according to the present invention is characterized by having a glass composition comprising, in mol%, SiO20-40%, BO25-45%, CaO 3-15%, SrO+BaO+ZnO 5-30%, ZrO0-6%, AlO0-8%, CuO 0-1%, with the molar ratio (SiO+CaO)/(BO+SrO+BaO+ZnO) of higher than 0.50.SELECTED DRAWING: None