| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material which has fluidity suitable for sealing, exhibits a high thermal expansion coefficient after heat treatment, and hardly causes decreases of air tightness and adhesiveness of adhesion portions in the exposure to high temperatures over a long period, and the deterioration of power generating characteristics of fuel cells due to evaporation of glass components, and has stable heat resistance. <P>SOLUTION: The high-expansive crystalline glass composition contains, in mol%, SiO<SB POS="POST">2</SB>: >30 and <50%, MgO: 10 to 50%, BaO: 5 to 40%, CaO: 0 to 20%, SrO: 0 to 10%, B<SB POS="POST">2</SB>O<SB POS="POST">3</SB>: 0 to 15%, ZnO: 0 to 15%, Al<SB POS="POST">2</SB>O<SB POS="POST">3</SB>: 0 to 6%, ZrO<SB POS="POST">2</SB>: 0 to 3%, and SnO<SB POS="POST">2</SB>: 0 to 3%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
