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Microsystem Technologies

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01-09-2012 | Technical Paper

Lubricant transfer caused by breakage of liquid meniscus bridge

Authors: Hiroshige Matsuoka, Masaya Kan-nen, Shigehisa Fukui

Published in: Microsystem Technologies | Issue 9-10/2012

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Abstract

In recent magnetic storage systems, the spacing between the flying head and the disk has been decreased remarkably to less than 5 nm in order to realize ultra-high density recording. Lubricant on the disk is picked up by the flying head slider as a result of intermittent contact between the slider and the disk, or due to condensation of the lubricant vapor. In the present study, the basic characteristics of lubricant transfer (lubricant pick-up) caused by the breakage of a liquid meniscus bridge are investigated experimentally and theoretically. An experimental method by which to measure the volume fraction of the lubricant pick-up has been established. The theoretical results obtained from a simple model proposed by the authors showed good agreement with the experimental results. The validity of the theoretical model was verified based on the experimental results.

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Title: Lubricant transfer caused by breakage of liquid meniscus bridge
Authors: Hiroshige Matsuoka
Masaya Kan-nen
Shigehisa Fukui
Publication date: 01-09-2012
Publisher: Springer-Verlag
Published in: Microsystem Technologies / Issue 9-10/2012
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI: https://doi.org/10.1007/s00542-012-1598-6

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