CONTACT ANALYSIS OF REGULAR PATTERNED ROUGH SURFACES IN MAGNETIC RECORDING

The contact of regular patterned rough surface in magnetic recording w as analyzed to predict the contact area, meniscus force and permissibl e load under thin-film lubricated conditions. The contact area, the me niscus force, and the permissible load at the magnetic head-disk inter face were studied as a function of the shape, size and the occupation of asperities. Optimum design criteria for both constant occupation an d nonconstant occupation of identical asperities were developed to des ign future magnetic head and disk surfaces.