Determination of Accommodation Coefficients for N2 at Disk-Drive Air-Bearing Surfaces

[+] Author and Article Information
C. T. Rettner

IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120-6099

J. Tribol 119(3), 588-589 (Jul 01, 1997) (2 pages) doi:10.1115/1.2833540 History: Revised February 07, 1997; Online January 24, 2008; Received August 24, 2995


Thermal and tangential momentum accommodation coefficients have been obtained for N2 colliding with various surfaces of relevance to the disk-drive air bearing using molecular beam scattering techniques. Analysis of the velocity and angular distributions of scattered species indicates that N2 is essentially fully accommodated at the relevant surfaces for energies characteristic of room temperature gas.

Copyright © 1997 by The American Society of Mechanical Engineers
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