Abstract
The capillary force due to a wetting liquid between solid particles is responsible for agglomeration and the rearrangement stage of liquid phase sintering. The capillary force has been calculated for several situations using a numerical technique. Included in the calculations are variations in particle size, contact angle, liquid volume, and particle separation. The capillary force obtained from these calculations is more accurate than prior estimates using a circular profile for the interparticle liquid bridge. A large attractive force exists between particles with small contact angles, particle sizes, and liquid volumes. Rupture of the liquid bridge is predicted using an energy analysis. At large contact angles, a zero force condition exists at an intermediate particle separation.
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Hwang, K.S., German, R.M. & Lenel, F.V. Capillary forces between spheres during agglomeration and liquid phase sintering. Metall Trans A 18, 11–17 (1987). https://doi.org/10.1007/BF02646216
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DOI: https://doi.org/10.1007/BF02646216