Abstract
Morphology, structure, and tribological behavior of magnetron co-sputtered TiN/Ag nanocomposite coatings deposited at 150 °C with an Ag content in the range of 7–45 at.% were characterized. The coatings show a columnar structure with embedded Ag crystallites of 3–50 nm in diameter, where the columns are characterized by a layered structure with Ag-poor and Ag-rich layers. These layers originate from sample rotation during deposition, where the layer thickness increases with increasing Ag content. These Ag layers become continuous over a critical Ag content. At room temperature the friction coefficient is determined by the film structure, whereas friction and wear at high temperature depend on segregation of Ag to the surface.
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Acknowledgments
This work was financially supported by the Austrian NANO Initiative via a grant from the Austrian Science Fund FWF (project N401-NAN). The authors would like to thank Prof. C. Teichert, Dr. G. Hlawacek, and T. Klünsner for their support with AFM measurements.
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Köstenbauer, H., Fontalvo, G.A., Mitterer, C. et al. Tribological Properties of TiN/Ag Nanocomposite Coatings. Tribol Lett 30, 53–60 (2008). https://doi.org/10.1007/s11249-008-9312-7
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DOI: https://doi.org/10.1007/s11249-008-9312-7