| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing material of which, during baking, the thermal expansion coefficient does not increase and the flowability is not impaired, by preparing a cordierite powder having a surface layer which hardly melts into bismuth-based glass, for example, even when the burning temperature is higher than 500°C. SOLUTION: The sealing material contains a bismuth-based glass powder and a cordierite powder which has been prepared by a solid-phase reaction. COPYRIGHT: (C)2008,JPO&INPIT
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