Optimization of Asperities for Laser-Textured Magnetic Disk Surfaces
作者： Sameera K. Chilamakuri , Bharat Bhushan
DOI: 10.1080/10402009708983659
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摘要: Increasing areal densities on the order of I Gbit/in2 in magnetic disk drives demands use supersmooth substrates which can, however, lead to a severe sticlion problem. A practical solution involves creation bumps dedicated landing zone near inner diameter using focused laser beam. The tribological performance laser-textured depends size and number its surface. large asperities (bumps) can result high force. On other hand, prevent plastic deformation, must be greater than certain number. statistical contact model has been developed generate design curves for estimating critical as function asperity radius both deformation sticlion. Presented Society Tribologists Lubrication Engineers paper at ASME/STLE Tribology Conference San Francisco, California, October 13–17, 1996
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