DocumentCode
764295
Title
Fomblin Multidentate Lubricants for Ultra-Low Magnetic Spacing
Author
Marchon, B. ; Guo, X.C. ; Karis, T. ; Deng, H. ; Dai, Q. ; Burns, J. ; Waltman, Robert
Author_Institution
Hitachi GST, San Jose Res. Center, CA
Volume
42
Issue
10
fYear
2006
Firstpage
2504
Lastpage
2506
Abstract
This paper discusses a new class of lubricants for disk application, designed for ultra-low magnetic spacing. By tying down the middle of the long perfluoropolyether (PFPE) Fomblin chain to the overcoat surface with additional functional groups, one can achieve the very low clearance needed for the future, sub-5 nm flying height head-disk interface. Bulk synthesis and characterization are described, and tribological performance is investigated. Benefits of this novel lubricant family can be attributed not only to its shorter free chain length, but also to disjoining pressure attributes
Keywords
hard discs; lubricants; magnetic heads; Fomblin multidentate lubricants; flying height head-disk interface; perfluoropolyether Fomblin chain; tribological performance; ultra-low magnetic spacing; Atmosphere; Fractionation; Humidity measurement; Lubricants; Magnetic analysis; Magnetic liquids; Nitrogen; Nuclear magnetic resonance; Temperature; Tribology; Head-disk interface; lubricant; tribology;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2006.878628
Filename
1704346
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