Effects of wetting hysteresis on pendular liquid bridges between rigid spheres

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Authors

Colleges, School and Institutes

Abstract

The effects of wetting hysteresis on the properties and behaviour of pendular liquid bridges between spherical particles have been investigated both experimentally and theoretically. A thermodynamic analysis shows the existence of metastable states that would account for the observed pinning of the three-phase contact line. The most important findings, with respect to the role of capillary interactions in agglomeration processes, are that (a) some of the kinetic energy of "wet" agglomerates may be dissipated during collisions by such hysteresis, (b) the bridge rupture distance is increased and (c) pinning will result in a maximum in the force-separation characteristics. (C) 2003 Elsevier Science B.V All rights reserved.

Details

Original languageEnglish
Pages (from-to)63-69
Number of pages7
JournalPowder Technology
Volume130
Issue number1
Publication statusPublished - 19 Feb 2003

Keywords

  • liquid bridges, agglomeration, capillary force, wetting