Method for electrolytically etching of a recrystallized aluminum

Details Method for electrolytically etching of a recrystallized aluminum Method for electrolytically etching of a recrystallized aluminum

1979-01-12

1980-07-22

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412975, C25F 304

Patent

active

042138353

ABSTRACT:
A method of etching a recrystallized aluminum foil which utilizes potentiostatic etching to roughen the foil to obtain a particularly high roughening factor. The etching preferably occurs in two stages in which the etching current density of the first stage is above the current density which creates an undesired pitting of the aluminum and a second stage which utilizes an etching current density which is below the density which creates pitting of the aluminum.

REFERENCES:
patent: 3876479 (1975-04-01), Yamada
patent: 3935080 (1976-01-01), Gumbinner et al.
patent: 3980539 (1976-09-01), Lloyd et al.

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