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Head Wear in Contact Recording Systems

[+] Author Affiliations
Youichi Kawakubo, Shinichi Kobatake, Shunichi Miyazawa, Shinichi Nakazawa

Shinshu University, Nagano-shi, Nagano, Japan

Paper No. 2003-TRIB-339, pp. 65-68; 4 pages
doi:10.1115/2003-TRIB-339
From:
  • STLE/ASME 2003 International Joint Tribology Conference
  • Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology
  • Ponte Vedra Beach, Florida, USA, October 26–29, 2003
  • Conference Sponsors: Tribology Division
  • ISBN: 0-7918-3705-X | eISBN: 0-7918-3704-1
  • Copyright © 2003 by ASME

abstract

The possibility of disk failure, a common failure mode conventional HDDs, was studied in conditions supposed contact recording systems. For this purpose, transparent pin-on-disk wear tests were performed on thin-film magnetic disks with sliding load less than 5 mN. We found that visible wear scar did not appear on disk surfaces. Wear debris were found be buried on the disk surfaces. This showed that the reduction of head wear and vibration are two main problems to be solve for future hard disk drives. We then studied effects of disk lubricant and tape burnishing of disk surface on pin wear. The results showed the higher the molecular weight of lubricants, the lower the pin wear, and tape burnishing reduced pin wear.

Copyright © 2003 by ASME
Topics: Wear

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