abstract |
The glass powder of the present invention is characterized in that the glass composition contains 83 to 95% of Bi 2 O 3 +CuO, 75 to 90% of Bi 2 O 3 , 3 to 12% of B 2 O 3 , 1 to 10% of ZnO 10%, Al 2 O 3 0 to 5%, CuO 4 to 15%, Fe 2 O 3 0 to 5%, MgO+CaO+SrO+BaO 0 to 7%, and substantially no PbO. |