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Letter 3072
Anodizing of Tungsten
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I just came across your web site. You appear to be very
knowledgeable in this area and I need a quick answer (although
getting the work done would take longer). The
ASM Metals Handbook 9th Ed. Vol.5
refers to an acetic acid / sodium borate solution (used for vanadium
but no 'recipe' was included). Can you recommend an anodizing
solution, electrode materials and electrical parameters or point me
in the right direction? I eventually want to anodize tungsten powder
but I will do trial runs on foil. Thanks.
Mike Featherby
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I hope that the "You" in "You appear to be very knowledgeable in
this area" refers to the collective knowledge of ALL of our
readers--because I have no ideas whatsoever on this one folks.
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Ted Mooney, P.E.
finishing.com
Brick, New Jersey
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The formula on page 661 of that book seems very specific to me. If
the water is maintained between 1 and 2 M, then the acetic acid must
be glacial.
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