Method for forming a defect-free surface on a porous ceramic sub

Details Method for forming a defect-free surface on a porous ceramic sub Method for forming a defect-free surface on a porous ceramic sub

1989-10-05

1990-07-03

Hall, Carl E.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

29846, 204 15, 204 30, 204 384, 427 11, 427140, 427357, 427360, 427367, 427444, B23P 1700

Patent

active

049379305

ABSTRACT:
A process for hermetically sealing defects in a porous ceramic substrate comprising the steps of evaporating or sputtering a malleable metal layer onto the defective porous ceramic surface, swaging or smearing the malleable metal layer over the defects and depositing a second metal film over the swaged first film to provide a smooth defect free surface.

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patent: 4652336 (1987-03-01), Andrascek et al.
patent: 4663480 (1987-05-01), Ubbens
patent: 4849302 (1989-07-01), Ostwald

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