Metal anode for electrochemical processing and method of making

Details Metal anode for electrochemical processing and method of making Metal anode for electrochemical processing and method of making

1975-05-23

1979-02-06

Esposito, Michael F.

Coating processes

Electrical product produced

Metal coating

427115, 427123, 427125, 427126, 427376G, 427376H, 427380, 427383C, 427404, 427405, 427419A, 427435, 427436, C25B 1102, C25B 1108

Patent

active

041385101

ABSTRACT:
A valve metal anode, for electrolytical processes, having an electron-active covering layer, is prepared by anchoring electron-activating substances, counteracting passivation of the anode, in a sintered porous carrier layer of valve metal. The carrier layer which is sintered onto the cleaned valve metal base may consist of a powder of the same metal or of the crystallographically similar metal. The infusion of the active substances into the carrier layer can be accomplished by impregnating and drying or baking the active substances, by precipitating them from the vapor phase, galvanically, or from the gaseous phase. The active substances may also be ingredients of the sinter mixture.

REFERENCES:
patent: 3171757 (1965-03-01), Duddy
patent: 3497425 (1970-02-01), Cotton et al.
patent: 3503799 (1970-03-01), Aoki et al.
patent: 3654121 (1972-04-01), Keith et al.
patent: 3663414 (1972-05-01), Martinsons et al.
patent: 3668005 (1972-06-01), Sluse et al.
patent: 3787244 (1974-01-01), Schulmeister
patent: 3926773 (1975-12-01), Koziol et al.
patent: 3977959 (1976-08-01), Habermann
patent: 4007107 (1977-02-01), Johnson

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