High temperature sealing glass

Details High temperature sealing glass High temperature sealing glass

1998-09-02

2000-09-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 17, 501 21, 501 64, 501 66, 501 67, 501 69, 501 77, 501 78, 204424, C03C 824, C03C 814

Patent

active

061242241

ABSTRACT:
The present invention provides high temperature sealing glass compositions for use in producing mechanically and chemically durable electrically insulating hermetic glass seals between materials such as zirconia, alumina, fosterite, steatite, carbon steels, stainless steels, and superalloys. High temperature sealing glass compositions according to the present invention include a glass component and optional vehicles. The glass component includes one or more glass frits containing in weight percent from about 17% to about 56% BaO+SrO, from about 18% to about 60% SiO.sub.2, from about 6% to about 36% B.sub.2 O.sub.3, from about 2% to about 32% Al.sub.2 O.sub.3, from about 0% to about 25% CaO plus MgO, from about 0% to about 20% Y.sub.2 O.sub.3, from about 0% to about 7% ZrO.sub.2, from about 0% to about 3% alkali oxides, from about 0% to about 5% Co.sub.3 O.sub.4, from about 0% to about 5% NiO, and from about 0% to about 3% MoO.sub.3. Upon firing, high temperature sealing glass compositions of the present invention produce mechanically and chemically durable hermetic glass seals which exhibit electrical resistance of greater than about 30 megaohms when measured at room temperature.

REFERENCES:
patent: 2642633 (1953-06-01), Dalton
patent: 3123470 (1964-03-01), Denison, Jr.
patent: 3258350 (1966-06-01), Martin et al.
patent: 3951669 (1976-04-01), Malmendier et al.
patent: 4221604 (1980-09-01), Chirino et al.
patent: 4310402 (1982-01-01), Isenberg et al.
patent: 4571285 (1986-02-01), Nakazawa et al.
patent: 4596132 (1986-06-01), Takami et al.
patent: 5137849 (1992-08-01), Brix et al.
patent: 5178744 (1993-01-01), Nakazawa et al.
patent: 5228975 (1993-07-01), Yamada et al.
patent: 5449234 (1995-09-01), Gipp et al.
patent: 5670032 (1997-09-01), Friese et al.
patent: 5739414 (1998-04-01), Paulus et al.
patent: 5858895 (1999-01-01), Sagara et al.

Affiliated with

Also associated with

Rating

High temperature sealing glass does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High temperature sealing glass, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature sealing glass will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2099883