S. Chilamakuri et B. Bhushan, DESIGN OF SOMBRERO AND DONUT SHAPED BUMPS FOR OPTIMUM TRIBOLOGICAL PERFORMANCE, IEEE transactions on magnetics, 34(4), 1998, pp. 1795-1797
Tribological behavior of laser textured disk surfaces depends on shape
and size of the laser bumps, number of bumps and mechanical propertie
s of the disk and slider surfaces. An analytical model has been develo
ped to estimate critical number of asperities as a function of bump sh
ape, bump size and mechanical properties of the mating surfaces, which
can prevent both stiction and wear. Design curves have been generated
for sombrero and donut shaped laser bumps.