Method for the manufacture of porous non-evaporable getter devic

Details Method for the manufacture of porous non-evaporable getter devic Method for the manufacture of porous non-evaporable getter devic

1985-03-08

1993-09-07

Nguyen, Nam X.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041815, 2521811, 2521816, C25D 1300

Patent

active

052425592

ABSTRACT:
A method is described for the electrophoretic deposition, in the form of a porous coating, of at least one getter material and simultaneously an antisintering agent on any form of support.
The getter material may be a powder of a metal, of a metal alloy or of a hydride thereof, or a mixture of these components. The getter material powders have a particle size less than 100 .mu. and an average particle size less than 60 .mu. but preferably greater than about 20 .mu.. The antisintering agent has a particle size of the same order of magnitude. After a heat treatment under vacuum the getter devices produced have an open porous structure and have good gas sorption properties. The support for the getter material can be graphite or a metal or a metal coated with ceramic.

REFERENCES:
patent: 4360445 (1982-11-01), Mendelsohn et al.
patent: 4428856 (1984-01-01), Boyarina et al.

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