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Grinding of MoS2 by a ball mill

  1. Mar 25, 2008 #1
    [SOLVED] grinding of MoS2 by a ball mill

    Hello ,
    Particle size of exist MoS2 is under 30micron and I have to change them to below one micron by a ball mill. I have to use a plastic vial for my application as a mill. I select 40cc plastic bottle as a mill, 48 number of Al2O3 balls (1gr each), 20cc isopropanol alcohol and 3 gr MoS2. Size of the particles were examined each 5 hr by SEM. Unfortunately after 72 hr particles did not have favourable size and many of the particles had large size. Regarding MoS2 has very soft structure (hardness 1-1.5), why I couldn’t get good result? In the wet milling what is good proportion between balls, powder and the liquid?
  2. jcsd
  3. Mar 25, 2008 #2


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    Try n-decane instead of IPA. This reference claims to get nanoscale particles after 10 hrs of milling.

    http://www.aist.go.jp/NIMC/publication/annual99/09/09_15.html [Broken]

    Also, I would try a smaller ratio (10-15cc of decane for 3g of MoS2). And finally, you may need to try different bead sizes too.
    Last edited by a moderator: May 3, 2017
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