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TECHNICAL PAPERS

Effect of Lubricant on Flyability and Read-Write Performance in the Ultra-Low Flying Regime

[+] Author and Article Information
Xiaoding Ma, David Kuo, Jianping Chen, Huan Tang, Jing Gui

Seagate Recording Media, 47010 Kato Road, Fremont, CA 94538

J. Tribol 124(2), 259-265 (May 29, 2001) (7 pages) doi:10.1115/1.1398547 History: Received January 25, 2001; Revised May 29, 2001
Copyright © 2002 by ASME
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References

Figures

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HDI lubricant images after lubrication process (brighter area indicates thicker lubricant)
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Lubricant steps at the interface of thick lubricant region and thin lubricant region
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Experimental setup of flyability test
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AE, LDV, and spindle index (top, middle, and bottom traces) signals for a head flying at (a) 12.7 m/s and (b) 5.4 m/s over a 2 nm Zdol step-lubed disk
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AE, LDV, and spindle index (top, middle, and bottom traces) signals for a head flying at (a) 12.7 m/s and (b) 5.1 m/s over a 4 nm Zdol step-lubed disk
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HDI lubricant images before and after flying test
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Left: Lubricant thickness profiles along radial direction for Z-25. Top curve—average over thick lubricant region; bottom curve—average over thin lubricant region. Right: Lubricant thickness profiles along circumferential direction inside the tracks.
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Left: Lubricant thickness profiles along radial direction for Zdol. Top curve—average over thick lubricant region; bottom curve—average over thin lubricant region. Right: lubricant thickness profiles along circumferential direction inside the tracks.
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Read-back signal as a function of step thickness for Z-25
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Magnetic spacing loss vs. lubricant step thickness

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