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Difficulty in electroetching of 1050 aluminum alloy

  1. Jan 22, 2014 #1
    Dear friends
    I have tried to electroetch 1050 aluminum alloy by 5ml phosphoric acid + 95ml H2o under 1 to 10 volts. However, it was a complete failure even after etching for 6 min.

    Please help me if you know how to overcome this problem.

    Thank you very much
    Best regards
  2. jcsd
  3. Jan 28, 2014 #2


    User Avatar

    What does failure mean?
    All you wish to do is electroetching aluminum?
    Why not NaOH
    Is the oxide layer thin? I usually get at least electrolysis and some etching with tap water. Are any bubbles coming out?
    Are you sure you used the right polarity?

    A few startup questions.
    Last edited by a moderator: Sep 25, 2014
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