MODELING STICTION PERFORMANCE OF LASER-TEXTURE

The variable capillary force arising between the surfaces of a slider and a textured magnetic disk is explored. Disk texture is modeled with an ensemble of bumps having geometries characteristic of laser-textur e. Lubricant redistribution is modeled dynamically while elastic defor mation of bumps is described by Hertzian contact models. The results d emonstrate a significant impact of geometry on capillary spreading and on the subsequent net capillary force.