Process for joining metallic and ceramic materials

Details Process for joining metallic and ceramic materials Process for joining metallic and ceramic materials

1988-10-31

1990-05-22

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

501 4, 501 14, 501 17, 501 65, 501 77, B32B 1800

Patent

active

049274759

ABSTRACT:
A process for joining components having ceramic and metallic joining surfaces provides a permanent and complete joint with ceramic surfaces despite metal-oxide layers on the metal or metal-alloy joining surfaces. A glass coating is applied to the ceramic joining surface before joining. The glass contains at least 5 to 20% by weight of Na.sub.2 O, 30 to 60% by weight of B.sub.2 O.sub.3 and 20 to 60% by weight of SiO.sub.2. The surfaces of the components to be joined are then permanently joined to each other at a specified temperature and a specified pressure.

REFERENCES:
patent: 2771969 (1956-11-01), Brownlow
patent: 3175937 (1965-03-01), Bayer
patent: 3284891 (1966-11-01), Whitney
patent: 3676292 (1972-07-01), Pryor et al.

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