Two-stage anodization of capacitor electrodes

Details Two-stage anodization of capacitor electrodes Two-stage anodization of capacitor electrodes

1977-11-10

1978-12-26

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204 56R, 204 58, C25B 1110, C25D 1134

Patent

active

041315200

ABSTRACT:
In a two-stage anodization process in which the outer portion of a porous valve-metal sintered body is anodized to a higher voltage than the inner portion, the second-stage anodization is carried out in an electrolyte containing a salt of a weak acid.

REFERENCES:
patent: 2094048 (1937-09-01), Siegel
patent: 3415722 (1968-12-01), Scheller et al.
patent: 3496076 (1970-02-01), Cheseldine
patent: 3614544 (1971-10-01), Mosebach et al.

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