Molecular Adhesion Model for the Bridged State of a Magnetic Recording Slider

Frictional hysteresis loops are measured with a pico-slider on typical desktop media to illustrate the bridged state with a chemisorbed perfluoropolyether lubricant. Our new molecular adhesion model calculates the mean spacing and bridge stiffness from the experimental friction force, surface topogr...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2007-06, Vol.43 (6), p.2232-2234
Main Authors: Karis, T.E., Guo, X.-C.
Format: Article
Language:English
Subjects:
Adhesion
Adhesive bonding
Adhesives
Applied sciences
Bonding
Bonding forces
Bridges
Cross-disciplinary physics: materials science
rheology
Disk drives
disks
Dispersion
Exact sciences and technology
Friction
head-disk interface
Hysteresis loops
lubricant
Lubricants
magnetic disk
Magnetic hysteresis
Magnetic recording
Magnetism
Materials science
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Other topics in materials science
Physics
slider
Sliders
Stress
Surface topography
Topography
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Description
Summary:Frictional hysteresis loops are measured with a pico-slider on typical desktop media to illustrate the bridged state with a chemisorbed perfluoropolyether lubricant. Our new molecular adhesion model calculates the mean spacing and bridge stiffness from the experimental friction force, surface topography, and dispersive surface energy. An increase in friction force with increasing pressure is consistent with molecular bond orientation by the adhesion stress
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2007.893839