Zobrazeno 1 - 10
of 10
pro vyhledávání: '"G. W. Tyndall"'
Publikováno v:
Tribology Letters. 39:211-219
Lubricant pick-up by a low-flying slider is investigated for hydroxyl-terminated perfluoropolyethers as a function of the number of hydroxyl (OH) groups and of film thickness on the surface of finished rigid disks. The total number of hydroxyl (OH) g
Publikováno v:
Brunner, R.; Tyndall, G. W.; Waltman, R. J.; & Talke, F. E.(2010). Adhesion Between Surfaces Separated by Molecularly Thin Perfluoropolyether Films. Tribology Letters, 40(1), pp 41-48. doi: 10.1007/s11249-009-9571-y. Retrieved from: http://www.escholarship.org/uc/item/45t1c4tm
The relationship between the adhesion of surfaces separated by a molecularly thin liquid film and the surface energy of the film was investigated. AFM-based force–distance curves were measured on a series of carbon surfaces coated with hydroxyl-ter
Autor:
H. Deng, R. J. Waltman, N. Kobayashi, K. Hirasawa, G. W. Tyndall, and T. Akada, and D. J. Pocker, Y. Fujii
Publikováno v:
Chemistry of Materials. 15:2362-2375
A novel perfluoropolyether (PFPE) structure terminated on one chain end by a hydroxyl end group and on the other end by a cyclotriphosphazene derivative was studied. The interactions that developed at the interface between molecularly thin films of t
Publikováno v:
Journal of Applied Physics. 90:6287-6296
The impact of water on the hydroxyl-terminated perfluoropolyether, Zdol, and the amorphous carbon overcoats commonly used on magnetic recording disks was investigated via computer modeling, kinetic experiments, and surface energy measurements. Water
Autor:
R. J. Waltman, G. W. Tyndall
Publikováno v:
The Journal of Physical Chemistry B. 104:7085-7095
The thermodynamics of ultrathin (≤10 A) perfluoropolyether (PFPE) films in contact with amorphous carbon surfaces (CHx and CNx) are derived from the time-dependent kinetics of film evaporation. Two nonfunctionalized PFPE structures were studied: a
Publikováno v:
Tribology Transactions. 42:463-470
Perfluoropolyethers (PFPEs) are widely used as lubricants on magnetic recording media. The mobility of the PFPE on the protective carbon overcoat of the media is widely accepted to be intimately coupled to the resulting tribological performance. The
Publikováno v:
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films. 15:2382-2387
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 reson
Autor:
R. L. Jackson, G. W. Tyndall
Publikováno v:
ChemInform. 22
Publikováno v:
INTERMAG 2006 - IEEE International Magnetics Conference.
This paper investigates structural and mechanical properties of present carbon overcoats for a number of sliders and disks manufactured by various vendors. Raman spectroscopy is first used to identify the morphology of the carbon overcoats and to eva
Autor:
G. W. Tyndall, R. L. Jackson
Publikováno v:
ChemInform. 18