abstract |
Glass powder of the invention is a glass composition in terms of percent by mass, Bi 2 O 3 + CuO 83~95 %, Bi 2 O 3 75~90%, B 2 O 3 3~12%, ZnO 1~10%, Al 2 0 to 5% of O 3 , 4 to 15% of CuO, 0 to 5% of Fe 2 O 3, 0 to 7% of MgO + CaO + SrO + BaO and substantially no PbO. |