abstract |
The glass powder of the present invention contains, as a glass composition, 83% to 95% of Bi2O3+CuO, 75% to 90% of Bi2O3, 3% to 12% of B2O3, and 1% to 10% of ZnO, by mass%. 0 to 5% of Al2O3, 4% to 15% of CuO, 0 to 5% of Fe2O3, and 0 to 7% of MgO+CaO+SrO+BaO, and substantially no PbO. |