Composition for sealing glass

Details Composition for sealing glass Composition for sealing glass

2011-06-21

2011-06-21

Lorengo, Jerry (Department: 1731)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S078000, C501S079000, C501S017000, C501S018000, C501S021000

Reexamination Certificate

active

07964523

ABSTRACT:
A powder composition for forming a highly expansible crystallized glass substantially free of alkali metals is disclosed, which composition can provide, through its firing at a temperature of not more than 900° C., a seal between metal and ceramic. The powder composition is a powder composition for the formation of a sealing crystallized glass which is substantially free of alkali metals and consists of the powder of a glass containing, calculated as oxides, SiO2: 10-30% by mass, B2O3: 20-30% by mass, CaO: 10-40% by mass, MgO: 15-40% by mass, BaO+SrO+ZnO: 0-10% by mass, La2O3: 0-5% by mass, Al2O3: 0-5% by mass, and RO2: 0-3% by mass (wherein R represents Zr, Ti, or Sn), wherein the crystallized glass that is formed by firing the powder composition at 900±50° C. has a coefficient of thermal expansion of 90-120×10−7/° C. at 50-550 ° C.

REFERENCES:
patent: 4358541 (1982-11-01), Andrus et al.
patent: 4385127 (1983-05-01), Chyung
patent: 4965229 (1990-10-01), Nishino et al.
patent: 6362119 (2002-03-01), Chiba
patent: 8-134434 (1996-05-01), None
patent: 2003-238201 (2003-08-01), None
patent: 2004-123496 (2004-04-01), None
patent: 2007-161569 (2007-06-01), None

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