The effect of adsorbed moisture on interparticle forces, investigated by means

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A Molecular Dynamics (MD) simulation technique is used to investigate the effect of moisture o­n interparticle forces. This is carried out by simulating two opposing moist quartz surfaces at different separations. The spontaneous formation of a liquid bridge, was observed with o­nly three and a half monolayers o­n the surfaces, corresponding to a relative humidity of about 70% according to the BET-isotherm. In the article a brief account of the methodology is given. Results are shown in the form of snapshots of the position of the molecules at a given instant in time and mean forces between the quartz plates as a function of surface separation. The relation of the results to the macroscopic theory of liquid bridging is also mentioned, as are the density and diffusivity profiles of the adsorbed water layers.


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Author(s): 
Wensink, E.J.W., Hoffmann,A.C. ,Apol, M.E.F.
Journal: 
Proceedings of the World Conference o­n Particle Technology 3, Brighton, UK, July 1998.
Copyright: 
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