Patent
Electrical insulation film for aluminium
TLDR
In this paper, a film with excellent electrical insulating properties is produced on the surface of aluminium metals by carrying out anodic oxidation in an electrolyte of sulphuric acid, chromic acid or oxalic acid.Abstract:
A film with excellent electrical insulating properties is produced on the surface of aluminium metals by carrying out anodic oxidation in an electrolyte of sulphuric acid, chromic acid, oxalic acid, etc. in which a porous anodic oxidation film may form, using the metallic aluminium as an anode, making the ratio of cathode surface: anode surface at least 10:1.read more
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Channel plate electron multipliers
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TL;DR: In this article, a perforate aluminium plate having an anodized layer some 15 microns thick on the plate surface was used for image intensifiers. But the thickness of the anodised layer was not specified.