Method of improving the capacitance of anodized aluminum foil

Details Method of improving the capacitance of anodized aluminum foil Method of improving the capacitance of anodized aluminum foil

1988-07-05

1989-08-29

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 28, 204 33, 204 383, 295701, 361509, C25D 1116, C25D 1120

Patent

active

048614394

ABSTRACT:
Capacitance of anodized aluminum foil is increased by treating the foil after etching but before anodizing with an aqueous solution of a salt of valve metal, the oxide of which has a dielectric constant of at least about 20 and heating the foil to convert the salt to an oxide.

REFERENCES:
patent: 3375413 (1968-03-01), Brill
patent: 3398067 (1968-08-01), Rattalovich
patent: 3612956 (1971-10-01), Sterling et al.
patent: 4426260 (1984-01-01), Stevens
patent: 4470885 (1984-09-01), Randall et al.
patent: 4481083 (1984-11-01), Ball et al.

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