Title :
A study of the lubricant displacement under a flying head slider caused by slider-disk interaction
Author :
Watanabe, Takeshi ; Bogy, David B.
Author_Institution :
Dept. of Mech. Eng., Univ. of California, Berkeley, CA, USA
Abstract :
Even if no contact occurs between the disk and slider, lubricant flow is affected by several factors correlated with head-disk interaction. In particular, air-bearing pressure and disk surface topography have significant effects on thin lubricant films, and they may possibly cause uneven lubricant distribution. In this paper, we study the lube displacement under a flying head slider caused by slider-disk interaction, especially the effects of air bearing pressure and disk surface topography, which we detected by executing flyability tests using an optical surface analyzer.
Keywords :
hard discs; lubrication; magnetic heads; surface topography; air-bearing pressure; disk surface topography; flyability tests; flying head slider; head-disk interaction; lubricant displacement; lubricant flow; optical surface analyzer; slider-disk interaction; thin lubricant films; uneven lubricant distribution; Cause effect analysis; Frequency; Laboratories; Lubricants; Magnetic analysis; Magnetic heads; Optical films; Optical modulation; Surface topography; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816443