Improved Method for the Measurement of Asperity Compliance of Magnetic Tapes

[+] Author and Article Information
Sanwu Tan, Eric Baugh, Frank E. Talke

Center for Magnetic Recording Research, University of California, San Diego, La Jolla, CA 92093-0401

J. Tribol 121(1), 121-127 (Jan 01, 1999) (7 pages) doi:10.1115/1.2833792 History: Received July 09, 1997; Revised April 15, 1998; Online January 24, 2008


Asperity compliance of typical magnetic tapes is investigated as a function of contact pressure using intensity-based three-wavelength interferometry. Each spacing data is the average of 300 × 700 physical points. Asperity compliance curves for BaFe tape, MP tape, ME tape, and CrO2 tape were obtained. The experimental data was curve-fit using a parabolic contact model and the Greenwood-Williamson contact model. In addition, a comparison of the present results with previous measurements is presented.

Copyright © 1999 by The American Society of Mechanical Engineers
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