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The impact of slider surface roughness on the touchdown-takeoff hysteresis phenomenon
Asian Institue of Technology, Thailand.ORCID iD: 0000-0002-0074-3504
2014 (English)In: 5th World Tribology Congress, WTC 2013, Politecnico di Torino (DIMEAS) , 2014, Vol. 3, 2481-2484 p.Conference paper (Refereed)Text
Abstract [en]

Summary In this study we looked at the effect of varying the slider roughness from 0.2 to 1.0 nm on slider TD and TO behavior. Varying the roughness in this range has no effect on the TD behavior of the slider, but does effect the TO behavior. Between 0.2 and 0.6 nm roughness, no change in TO behavior was observed. On the other hand, the slider surface with 1.0 nm roughness had a significantly lower TO velocity. We also studied the effect on TO velocity of changing the bonded lubricant ratio from 62 to 70%. The lubricant change had no effect on the TO behavior of the sliders with 1 .Onm roughness, but did increase the TO velocity of the smoother sliders. These two results imply that the slider roughness should not be much below 1 .Onm to assure fast recovery once dynamic instability occurs.

Place, publisher, year, edition, pages
Politecnico di Torino (DIMEAS) , 2014. Vol. 3, 2481-2484 p.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Tribology
Identifiers
URN: urn:nbn:se:kth:diva-182950ScopusID: 2-s2.0-84919495386ISBN: 9781634393522OAI: oai:DiVA.org:kth-182950DiVA: diva2:914213
Conference
5th World Tribology Congress, WTC 2013, 8 September 2013 through 13 September 2013
Note

QC 20160331

Available from: 2016-03-23 Created: 2016-02-24 Last updated: 2016-03-31Bibliographically approved

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Dutta, Joydeep
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