0
TECHNICAL PAPERS

Nanotribological Characterization and Lubricant Degradation Studies of Metal-Film Magnetic Tapes Using Novel Lubricants

[+] Author and Article Information
Bharat Bhushan1

Nanotribology Laboratory for Information Storage and MEMS/NEMS, The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142bhushan.2@osu.edu

Michal Cichomski, Zhenhua Tao

Nanotribology Laboratory for Information Storage and MEMS/NEMS, The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142

Nang T. Tran, Todd Ethen, Chris Merton, Richard E. Jewett

Data Storage and Information Management, Imation Corp., 1 Imation Place, Oakdale, MN 55128

1

Corresponding author.

J. Tribol 129(3), 621-627 (Jan 17, 2007) (7 pages) doi:10.1115/1.2736454 History: Received August 16, 2006; Revised January 17, 2007

In order to improve the durability of metal-film magnetic tapes, novel lubricants, A20H, X-1P, and X, a modified phosphazene, were deposited on the tapes. The adhesion, friction, and wear of the unlubricated/lubricated tapes were investigated using an atomic force microscope (AFM). The degradation of the lubricants was studied using a mass spectrometer in high vacuum. The durability of various unlubricated/lubricated tapes was compared in ambient and in humid air. The AFM test results show that the A20H lubricated tape exhibited lower adhesion and friction than X-1P and X lubricated tapes. The lubricants were believed to be mainly degraded by tribochemical reaction and mechanical shear in high vacuum. In high humidity air, the various lubricated tapes exhibit higher friction than in ambient air. By comparing the tribological performances of the various lubricated tapes to metal particle (MP) tape, it was found that the lubricated metal-film tapes exhibit lower adhesion, friction, and wear than the MP tape.

FIGURES IN THIS ARTICLE
<>
Copyright © 2007 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematics of MP, AME, and SMF tapes

Grahic Jump Location
Figure 2

Schematics of chemical structure of A20H, X-1P molecules

Grahic Jump Location
Figure 4

Adhesive force and coefficient of friction as a function of relative humidity for various unlubricated/lubricated tapes measured using an AFM

Grahic Jump Location
Figure 5

Wear as a function of normal load for various unlubricated/lubricated tapes measured using an AFM

Grahic Jump Location
Figure 6

Coefficients of friction and mass spectra data of (a) MP tape (24), unlubricated/lubricated AME tape, and (b) unlubricated SMF tape, A20H/SMF tape, X-1P/SMF tape, and X/SMF tape in high vacuum and under 75kPa interfacial pressure

Grahic Jump Location
Figure 7

Coefficients of friction of various unlubricated/lubricated tapes in ambient and humid air under 75kPa interfacial pressure

Grahic Jump Location
Figure 3

Contact angle, nanoscale adhesive force, and coefficient of friction of various unlubricated/lubricated tapes. Measurements were made using an AFM.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In