Title :
Design of sombrero and donut shaped bumps for optimum tribological performance [magnetic disks]
Author :
Chilamakuri, Sameera ; Bhushan, Bharat
Author_Institution :
Dept. of Mech. Eng., Ohio State Univ., Columbus, OH, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
Tribological behavior of laser textured disk surfaces depends on shape and size of the laser bumps, number of bumps and mechanical properties of the disk and slider surfaces. An analytical model has been developed to estimate critical number of asperities as a function of bump shape, 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
Keywords :
laser beam applications; magnetic disc storage; surface texture; surface topography; wear; asperities; bump shape; bump size; bumps; disk; donut shaped bumps; laser bumps; laser textured disk surfaces; mating surfaces; mechanical properties; optimum tribological performance; slider surfaces; sombrero shaped bumps; stiction; wear; Analytical models; Laser modes; Mechanical factors; Optical design; Plastics; Shape control; Size control; Surface emitting lasers; Surface texture; Surface topography;
Journal_Title :
Magnetics, IEEE Transactions on
