• Question: Which alloys are most attractive to magnets? Francis St CBS Dublin

    Asked by mrgoggin to Cathal, Ciara, Emma, Michael, Sive on 15 Nov 2013.
    • Photo: Michael Nolan

      Michael Nolan answered on 15 Nov 2013:

      An alloy is two or more metals in a common atomic structure. given the properties of magnetic materials alloys of iron, nickel, cobalt will be attractive, at least in principle.

      Alloy a rare earth metal like neodynium with iron and it should be a better magnet, but not cheap.

      Putting iron into titanium dioxide can make the non-magnetic titanium dioxide magnetic, at least at low temperatures (going to high in temperature kills the magnetism)

      hope this helps

      M

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