Substrate of improved plasma sprayed surface morphology and its

Details Substrate of improved plasma sprayed surface morphology and its Substrate of improved plasma sprayed surface morphology and its

1993-02-26

1994-06-28

Gorgos, Kathryn

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204290F, 204280, 204292, 428639, 428640, 428161, 428469, C25B 1110, C25D 1712

Patent

active

053244079

ABSTRACT:
A metal surface is now described having enhanced adhesion of subsequently applied coatings. The substrate metal of the article, such as a valve metal as represented by titanium, is provided with a highly desirable surface characteristic for subsequent coating application. This can be achieved by a plasma sprayed coating of well defined surface morphology, the plasma spraying being with one or more metals usually valve metals. The metal of the coating may be the same or different from the metal of the substrate. Subsequently applied coatings, by penetrating into the coating of well defined surface morphology, and desirably locked onto the resulting metal article an provide enhanced lifetime even in rugged commercial environments.

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European Search Report EP 91 81 0992 w/annex Jan 1993.

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