| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite material for sealing, which substantially contains no lead component so as to reduce the environmental load, and is excellent in required low expansion property, weatherability, flowability or the like. SOLUTION: The composite material for sealing is composed of a phosphate-based lead-free glass powder and a filler powder. The filler powder contains a KZr<SB>2</SB>(PO<SB>4</SB>)<SB>3</SB>filler powder and/or a K<SB>0.5</SB>Nb<SB>0.5</SB>Z<SB>1.5</SB>(PO<SB>4</SB>)<SB>3</SB>filler powder. Further, the phosphate-based lead-free glass powder is obtained by using glass containing, by mol, 30-70% SnO, 20-45% P<SB>2</SB>O<SB>5</SB>, 0-20% ZnO, 0-10% Al<SB>2</SB>O<SB>3</SB>, 0-15% SiO<SB>2</SB>, and 0-30% B<SB>2</SB>O<SB>3</SB>. COPYRIGHT: (C)2005,JPO&NCIPI
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