ETCHING AGENT
ETCHING AGENT
(OP)
May i know for the best etching agaent to study the microstructure of alumina preform and magnesium metal matrix composite in which alumina preform as reinforcement.
thanks
thanks
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RE: ETCHING AGENT
Have you tried polarized and DIC?
Mg is easy to etch. Dilute citric, tartaric and oxalic acids are all used.
I would consider heat tinting first though. Etching may cause too much attack and be hard to control on such a reactive metal.
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RE: ETCHING AGENT