| abstract |
To create a bismuth-based glass in which bismuth in a glass composition is difficult to reduce by vacuum firing despite having low melting point characteristics. The bismuth glass of the present invention has a glass composition of mol%, Bi 2 O 3 10-30%, B 2 O 3 25-45%, ZnO 5-20%, SiO 2 1-15%. , SrO 5 to 20%, BaO 3 to 20%, SrO + BaO (total amount of SrO and BaO) 10 to 35%. [Selection figure] None |