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RESEARCH PAPERS

The Development and Implementation of Discrete Texture for the Improvement of Tribological Performance

[+] Author and Article Information
Yufeng Li, Aric K. Menon

Seagate Technology, 8001 E. Bloomington Freeway, Bloomington, MN 55420

J. Tribol 117(2), 279-284 (Apr 01, 1995) (6 pages) doi:10.1115/1.2831243 History: Received February 15, 1994; Revised July 06, 1994; Online January 24, 2008

Abstract

The bearing area of conventional texture on magnetic recording disk surfaces shows a tendency of increase with a decrease in surface height. This is believed to be a major reason for the increase of head/disk friction with the accumulation of CSS cycles. In view of this, a novel type of texture is developed in this study. This type of texture consists of discrete pillar-shaped asperities, whose height and shape can be optimized to reduce friction build-up and wear depth during CSS operation. It also allows lower asperity height to reduce take-off velocity and glide height. In addition, it is suitable for landing zone texturing. The discrete texture remarkably outperforms mechanical texture during CSS tests.

Copyright © 1995 by The American Society of Mechanical Engineers
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