The effect of elastic flattening on particle adhesion to solid surfaces has been investigated. The attracting and repulsing molecular potential energies and forces are obtained for a flattened sphere-surface system at first. The energy conservation principle and force balance are then used to obtain the analytical equations that describe the relationship between the elastic flattening and van der Waals adhesion force.
Bibliographical noteFunding Information:
This research was supported partially by the Graduate School of the University of Minnesota through its Doctoral Dissertation Fellowship during the academic year 1988-1989. Most of the financial support has come from the Particulate Contamination Control Research Consortium at the University of Minnesota. Members of the consortium include Air Products and Chemicals, Inc., Airco/The BOC Group, Applied Materials, Donaldson Co., FSI International, GM/Delco Electronics, IBM Corp., Millipore Corp., Nupro Co., and TSI Inc. The support of the Graduate School, the Minnesota Supercomputer Institute, and the consortium members is gratefully acknowledged.