Electrodes of improved service life

Details Electrodes of improved service life Electrodes of improved service life

1997-08-27

2000-06-06

Bell, Bruce F.

Coating processes

Spray coating utilizing flame or plasma heat

Metal oxide containing coating

427448, 427455, 427307, 427309, 427318, 427226, 4272553, 427422, 427405, 427 96, 4271313, 1566251, 1566261, 1566281, 1566451, 204290F, 204280, C23C 410

Patent

active

060715707

ABSTRACT:
A method of preparing electrodes is now described, which electrodes have enhanced adhesion of subsequently applied coatings combined with excellent coating service life. In the method, a substrate metal, such as a valve metal as represented by titanium, is provided with a highly desirable rough surface characteristic for subsequent coating application. This can be achieved by various operations including etching to ensure a roughened surface morphology. In subsequent operations, a barrier layer is provided on the surface of enhanced morphology. This may be achieved by operations including heating, as well as including thermal decomposition of a layer precursor. Subsequent coatings provide enhanced lifetime even in the most rugged commercial environments.

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