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Who can tell me these two conceptions

  1. Apr 24, 2006 #1
    What is "the disjoining pressure" and What is "the Hamaker function".
  2. jcsd
  3. Apr 27, 2006 #2
    Where did you read about these concepts ?
    Can you give a reference to a text where they appeared ?

  4. Apr 27, 2006 #3


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    Staff: Mentor

    This paper might help to explain the Hamaker function (and Hamaker equation, Hamaker constants).


    As for disjoining pressure - see "Effect of van der Waals forces on molecularly thin lubricant in the magnetic storage head-disk interface"

    Also see - Lifsh!tz theory (where ! = i, in order to avoid auto-censor :rolleyes:)

    van der Waals Interaction, Surface Free Energies, and Contact Angles: Dispersive Polymers and Liquids

    which mentions Lifsh!tz theory and Hamaker equation and constants.

    See also - On the calculation of disjoining pressure isotherms for nonaqueous films.
    Last edited: Apr 27, 2006
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