Measurements of Asperity Temperatures of a Read/Write Head Slider Bearing in Hard Magnetic Recording Disks

[+] Author and Article Information
S. Bair, I. Green

George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

B. Bhushan

Department of Mechanical Engineering, University of California at Berkeley, Berkeley, Calif. 94720

J. Tribol 113(3), 547-554 (Jul 01, 1991) (8 pages) doi:10.1115/1.2920658 History: Received January 18, 1990; Revised July 06, 1990; Online June 05, 2008


An infrared temperature measurement system was used to measure hot spots in a magnetic head rigid disk interface. The system employed the spectral distribution as well as intensity of sampled radiation to determine both the temperature and effective area of microscopic sources at elevated temperature. Flash temperatures between particulate and thin-film rigid disks and a simulated transparent sapphire slider at various operating conditions were measured.

Copyright © 1991 by The American Society of Mechanical Engineers
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