• Anon7394@sh.itjust.works
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      3 days ago

      Explain.

      When exposed to atmospheric oxygen, pure metallic aluminum reacts almost immediately to form a dense, protective Aluminium oxide layer about 2 to 5 nanometers thick.

      • deHaga@feddit.uk
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        3 days ago

        They use electrolysis to make a 10 to 20 micron layer.

        Your natural one would scratch straight through