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TECHNICAL PAPERS

Effect of Ultra-Thin Liquid Lubricant Films on Dynamics of Nano-Spacing Flying Head Sliders in Hard Disk Drives

[+] Author and Article Information
Norio Tagawa, Atsunobu Mori

Department of Mechanical Engineering, Faculty of Engineering, Kansai University, Suita, Osaka 564-8680, Japan

Noritaka Yoshioka

Production Engineering Center, Matsusita Electronic Components Co., LTD., Kadoma, Osaka 571-8506, Japan

J. Tribol 126(3), 565-572 (Jun 28, 2004) (8 pages) doi:10.1115/1.1739409 History: Received February 14, 2003; Revised November 11, 2003; Online June 28, 2004
Copyright © 2004 by ASME
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References

Figures

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Experimental setup of flyability test
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Test dual-etched negative pressure pico-slider
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AFM image of test glass disk surface
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Lubricant coating patterns
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Lubricant film thickness profiles
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Relationship between LDV signal and AE signal
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LDV signals and FFT results at 3.9 m/s
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LDV signals and FFT results at 3.3 m/s
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LDV signals and FFT results at 2.0 m/s
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Lubricant film thickness versus flying height at which the slider-lubricant contact occurred
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Disk surface velocity versus LDV RMS values
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Lubricant film thickness profiles at 4 m/s
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Lubricant film thickness profiles at 3 m/s
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Lubricant film thickness profiles at 2 m/s
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AE signals for a flying head slider bearing

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