Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Thomas E. Karis"'
Autor:
Thomas E. Karis
Publikováno v:
Synthetics, Mineral Oils, and Bio-Based Lubricants ISBN: 9781315158150
Lubricant Additives ISBN: 9781315120621
Lubricant Additives ISBN: 9781315120621
When thinking of a disk drive, one picture that comes to mind is that of digital data bits stored on a spinning disk housed inside a device such as a computer, a digital video recorder, or a music player. Lubricants play a vital role in fulfilling th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7ea5ccbaa12fb23d816cdf5f2235ca5
https://doi.org/10.1201/9781315158150-50
https://doi.org/10.1201/9781315158150-50
Publikováno v:
ASME 2017 Conference on Information Storage and Processing Systems.
Magnetic recording disk carbon overcoats are lubricated with nanometer thick films of perfluoropolyether lubricant. It is well-known that lubricant thickness redistribution takes place due to air shear stress oscillation at air bearing resonant frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca789fe2423f92152a4fe34f2c479af2
https://doi.org/10.1115/isps2017-5401
https://doi.org/10.1115/isps2017-5401
Publikováno v:
Tribology Letters. 65
Magnetic recording disk carbon overcoats are lubricated with nanometer-thick films of perfluoropolyether lubricant. It is well-known that lubricant thickness redistribution takes place due to air shear stress oscillation at air bearing resonant frequ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d4e2ace224c4cec6a339bd98cb0ef82
https://doi.org/10.1007/s11249-017-0907-8
https://doi.org/10.1007/s11249-017-0907-8
Publikováno v:
Tribology Letters. 30:123-140
A novel region of tribological interaction is explored by inducing near contact between the magnetic recording slider and disk. In this study, we performed frictional measurements over a wide range of subambient air pressure and disk rotation rate. S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05acabea250ecc028357edde78afbfe6
https://doi.org/10.1007/s11249-008-9319-0
https://doi.org/10.1007/s11249-008-9319-0
Publikováno v:
Tribology Letters. 18:27-41
This article critically reviews the fundamental scientific tools, as well as constructs cohesive schemes for potential applications, relevant to the molecularly-thin liquid film technology. Our focus is to understand the nanoscale dynamic behavior of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::800d6c1cedd6db46a4f0ad641d9c9c8c
https://doi.org/10.1007/s11249-004-1702-x
https://doi.org/10.1007/s11249-004-1702-x
Autor:
Thomas E. Karis, Ullal Vasant Nayak
Publikováno v:
Tribology Transactions. 47:103-110
As magnetic recording slider size and flying height evolve to smaller dimensions, previously insignificant levels of contamination begin to play a role in slider media tribology. This article describes a new type of contamination. Liquid nanodroplets
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ec6b91cafb8321a04010d321c724719
https://doi.org/10.1080/05698190490279010
https://doi.org/10.1080/05698190490279010
Publikováno v:
Journal of Applied Polymer Science. 90:334-343
Yield stress, and small- and large- amplitude oscillatory shear measurements were performed on greases in a cone-plate fixture. Below the yield point, the grease behavior mimics that of a lightly crosslinked polymer. In large-amplitude oscillations t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42ad6179749783b07d012f401c2bf28e
https://doi.org/10.1002/app.12548
https://doi.org/10.1002/app.12548
Autor:
Thomas E. Karis, M. A. Tawakkul
Publikováno v:
Tribology Transactions. 46:469-478
Water adsorption isotherms were measured with two different types of perfluoropolyether lubricants, Zdol 4000 and Ztetraol 2000, on thin film magnetic recording disks. The adsorption isotherm provides the average water film thickness (areal density)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6179d7262bba1008192d9d5d95fa893
https://doi.org/10.1080/10402000308982653
https://doi.org/10.1080/10402000308982653
Publikováno v:
Macromolecular Materials and Engineering. 287:583-587
Large amplitude oscillatory shear experiments, as an alternative measurement technique for non-linear rheology, were performed using a cone-plate rheometer with a solder paste. We found that odd harmonics appear in the stress waveform. A two-segment,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f61cef448e12434009046ae66ece1ca2
https://doi.org/10.1002/1439-2054(20020901)287:9<583::aid-mame583>3.0.co
https://doi.org/10.1002/1439-2054(20020901)287:9<583::aid-mame583>3.0.co
Publikováno v:
Rheologica Acta. 41:471-474
Sudden change in the linear stress-strain relationship has long been known to produce interesting discontinuities in the flow properties of polymer melts, concentrated particle suspensions, and gels as the shear rate amplitude is increased. The non-l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1618ff9c42c8b2c9c7a59845268af85
https://doi.org/10.1007/s003970100207
https://doi.org/10.1007/s003970100207