Sealing glass

Details Sealing glass Sealing glass

1988-12-08

1989-08-08

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 15, 501 22, C03C 3074, C03C 810, C03C 824

Patent

active

048552615

ABSTRACT:
This invention relates to a sealing glass for use in bonding glass, ceramics and metals and specifies the composition of a sealing glass which is workable at moderate temperatures and is excellent in transparency and strength. Amorphous magnetic materials have themselves a crystallization temperature and when used in a magnetic head, the amorphous materials undergo crystallization in assembling the head at a sealing temperature higher than the crystallization temperature and becomes not only brittle but also deteriorated in magnetic characteristics so that the head becomes unsuitable for use. The present glass is advantageously used in such a case.

REFERENCES:
patent: 3291586 (1986-12-01), Chapman, Jr. et al.
patent: 4038091 (1977-07-01), Francel et al.
patent: 4073657 (1978-02-01), Davis et al.
patent: 4115132 (1978-09-01), Suzuki et al.
patent: 4184189 (1980-01-01), Davis et al.
patent: 4251595 (1981-02-01), Dameswil et al.
patent: 4310357 (1982-01-01), Matsuura et al.
patent: 4405722 (1983-09-01), Kokuba et al.
patent: 4515898 (1985-05-01), Davis et al.

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