Producing hydrous oxide of controlled thickness on aluminum capacitor foil
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United States of America Patent
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-
Feb 24, 1981
Grant Date -
N/A
app pub date -
Aug 9, 1979
filing date -
Aug 9, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The thickness of a hydrous oxide layer on aluminum capacitor foil is controlled by producing the oxide in a hot, dilute borate solution with a pH of about 6, prior to anodization of the foil.
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