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  1. AEH3

    Etching SiC

    I am trying to etch the grain boundaries of some polished SiC materiallography specimens to look at grain size/shape. I have used boiling Murakami etchant (KFe(CN)6:NaOH:10 H2O)for up to 15 minutes. Sometimes it works, sometimes it doesn't. I mix it up fresh each time because I understand it...

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