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 | | From: | Jukka T Mononen | | Subject: | Re: aluminum etch without HF | | Date: | Wed, 05 Jan 2005 11:13:48 +0200 |
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 | srvclapton wrote:
> I'm trying to etch 3003-h18 aluminum layers without using an HF
> solution. The problem I've been having is severe pitting without any
> grain boundary information. Is there a milder etch that takes more
> time? I am new to aluminum so any help would be great. Grain sizes
> range from pancaked ~30 micron in bulk to ~5 micron equiaxed at
> interface. Most of the literature does ebsd, but alas I don't have an
> sem handy.
>
> Thanks,
> -srvclapton
NaOH dilution (something like 10-40 %), preferably heated to 60 degC should
work.
Jukka
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