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Nanostructural Aspects of Wear in Ion-Beam Deposited Pb-Mo-S Films

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Abstract

Microstructural aspects of wear resistance have been investigated using cross-sectional transmission electron microscopy (TEM) to analyze both as-deposited and worn films. Asdeposited Pb-Mo-S films were virtually amorphous, i.e., show no long range structure. Wear tracks revealed a two-part wear process localized at the sliding surface. First, Pb-Mo-S at the sliding surface was transformed into basal-oriented, crystalline MoS2 from I to 4 monolayers thick. Then, as sliding continued, the MoS2 layers were detached one or two layers at a time. Evidence for the nanometer scale wear process is presented.

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Authors and Affiliations

  1. Naval Research Laboratory, Tribology Section, Washington, DC, 20375, USA

    K. J. Wahl & I. L. Singer

  2. Dept. of Materials Science and Engineering, University of Virginia, Charlottesville, VA, 22903, USA

    D. N. Dunn

Authors
  1. D. N. Dunn
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  2. K. J. Wahl
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  3. I. L. Singer
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Dunn, D.N., Wahl, K.J. & Singer, I.L. Nanostructural Aspects of Wear in Ion-Beam Deposited Pb-Mo-S Films. MRS Online Proceedings Library 522, 451–456 (1998). https://doi.org/10.1557/PROC-522-451

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  • DOI: https://doi.org/10.1557/PROC-522-451

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