PARTICLE REMOVAL MECHANISMS UNDER SUBSTRATE ACCELERATION

Particle detachment due to substrate acceleration is studied. The magn itude of the critical acceleration required to remove a particle from a surface based on the theory of critical moment and sliding detachmen t is determined. The special cases of spherical and cylindrical partic les are examined, and the role of particle geometry on adhesion and de tachment is studied. For different adhesion models, the critical subst rate acceleration for particle removal is evaluated. The theoretical p redictions are compared with the available experimental data and discu ssed.