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How to make an effective Magnetorheological Fluid?

  1. Jan 16, 2012 #1
    Hey everyone!

    I want to know how to make a Magnetorheological Fluid for a science project. I have decided to use Oleic Acid as the surfactant but I do not know what "particles" I should use. Will Iron Fillings be effective? Or should I find some other material that will be more effective?

  2. jcsd
  3. Sep 14, 2012 #2
    I have researched this for my own project, and it seems that super-fine iron particles called "Carbonyl iron powder" are used frequently. I still haven't found a place to from which to buy this other than online, but that's my two cents.

    Hope it helped.
  4. Oct 5, 2012 #3
    A solution of Laser ink toner will do the trick.
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