| abstract |
The present invention provides a sealing composition that melts at a lower temperature than a conventional bismuth-based sealing material, is stable even when the temperature is raised, and can be sealed without crystallization. The composition for sealing has a low melting point glass composition in terms of mol%, Bi 2 O 3 : 38 to 46%, B 2 O 3 : 15 to 28%, ZnO: 23 to 33%, MgO: 0.1 to 7%, SrO: 0.1 to 7%, CuO: 0.1 to 6%, and the molar ratio of MgO: SrO is 1: 2 to 1: 1, and MgO + SrO is 0. .2 to 8 mol% and substantially free of PbO and SiO 2 . [Selection figure] None |