| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a glass composition containing substantially no PbO nor SiO<SB>2</SB>and fluidizing quickly at firing temperature. <P>SOLUTION: The glass composition does not substantially include PbO and SiO<SB>2</SB>, and contains, by mass% in terms of oxides: 79%≤Bi<SB>2</SB>O<SB>3</SB><99.9%; 0.1%≤B<SB>2</SB>O<SB>3</SB>≤5.2%; 0%<ZnO≤11%; 0-10% at least one of BaO, MgO, CaO and SrO; 0-10% Al<SB>2</SB>O<SB>3</SB>; 0-5% at least one of CeO<SB>2</SB>, CuO and Fe<SB>2</SB>O<SB>3</SB>; and 0-2% at least one of Li<SB>2</SB>O, Na<SB>2</SB>O and K<SB>2</SB>O, and further satisfies 0.007<B<SB>2</SB>O<SB>3</SB>/Bi<SB>2</SB>O<SB>3</SB><0.375 in the scaling ratio of mol%. <P>COPYRIGHT: (C)2010,JPO&INPIT |
