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Investigation of Lubricant Transfer and Lubricant Fragmentation in a Hard Disk Drive

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Abstract

Lubricant transfer is investigated versus temperature, local pressure change and disk velocity considering lubricant fragmentation for four different types of perfluoropolyether. Lubricant transfer and lubricant fragmentation are found to increase with temperature, local pressure change and velocity of the moving disk. The local pressure change is observed to be the most important parameter accelerating lubricant fragmentation.

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Acknowledgements

Andreas Rosenkranz acknowledges the Feodor Lynen Fellowship of the Alexander von Humboldt foundation and support from Prof. Talkie’s tribology funds. We also would like to express our gratitude to Karcher Morris for helpful discussions.

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Authors and Affiliations

  1. Center for Memory and Recording Research, UC San Diego, La Jolla, CA, 92093, USA

    Young Woo Seo, Andreas Rosenkranz & Frank E. Talke

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  1. Young Woo Seo
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  2. Andreas Rosenkranz
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  3. Frank E. Talke
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Correspondence to Frank E. Talke.

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Seo, Y.W., Rosenkranz, A. & Talke, F.E. Investigation of Lubricant Transfer and Lubricant Fragmentation in a Hard Disk Drive. Tribol Lett 66, 17 (2018). https://doi.org/10.1007/s11249-017-0970-1

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