Fluorocarbon films were deposited on carbon overcoated magnetic recording media from monomers using an ion beam apparatus. The films were characterized using sensitive surface analytical and spectroscopic methods. These include nuclear magnetic resonance spectroscopy, dielectric spectroscopy, infrared spectroscopy, x-ray photoelectron spectroscopy, scanning Kelvin probe, ellipsometry, Rutherford backscattering, Auger electron spectroscopy, secondary ion mass spectroscopy, contact angle, and nanoindentation. The film thickness, chemical composition, hardness, and surface potential were measured across the media surface. The fluorocarbon film was insoluble and no melting or glass transition was observed up to 220 °C. Ambient organic adsorbates are detected on the surface, and the film undergoes a relaxation process that occurs over about 20 days time following deposition. The initial advancing water contact angle is controlled through surface modification by a plasma treatment in the final deposition stage.
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July 1997
Research Article|
July 01 1997
Characterization of a solid fluorocarbon film on magnetic recording media
T. E. Karis;
T. E. Karis
IBM Research Division, Almaden Research Center, San Jose, California 95120
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G. W. Tyndall;
G. W. Tyndall
IBM Research Division, Almaden Research Center, San Jose, California 95120
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D. Fenzel-Alexander;
D. Fenzel-Alexander
IBM Research Division, Almaden Research Center, San Jose, California 95120
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M. S. Crowder
M. S. Crowder
IBM Storage Systems Division, San Jose, California 95193
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J. Vac. Sci. Technol. A 15, 2382–2387 (1997)
Article history
Received:
January 17 1997
Accepted:
April 18 1997
Citation
T. E. Karis, G. W. Tyndall, D. Fenzel-Alexander, M. S. Crowder; Characterization of a solid fluorocarbon film on magnetic recording media. J. Vac. Sci. Technol. A 1 July 1997; 15 (4): 2382–2387. https://doi.org/10.1116/1.580751
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