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Sliding Wear Properties of HVOF Thermally Sprayed Nylon-11 and Nylon-11/Ceramic Composites on Steel

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Abstract

Polymer and polymer/ceramic composite coatings were produced by ball-milling 60 μm Nylon-11 together with nominal 10 vol.% of nano and multiscale ceramic reinforcements and by HVOF spraying these composite feedstocks onto steel substrates to produce semicrystalline micron and nanoscale reinforced polymer matrix composites. Room temperature dry sliding wear performance of pure Nylon-11, Nylon-11 reinforced with 7 nm silica, and multiscale Nylon-11/silica composite coatings incorporating 7-40 nm and 10 μm ceramic particles were characterized using a pin-on-disk tribometer. Coefficient of friction and wear rate were determined as a function of applied load and coating composition. Surface profilometry and scanning electron microscopy were used to characterize and analyze the coatings and wear scars. The pure Nylon-11 coating experienced less wear than the composites due to the occurrence of two additional wear mechanisms: abrasive and fatigue wear.

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Acknowledgments

The authors would like to thank the National Science Foundation for providing support for this research under collaborative grant number DMI 0209319 and grant number NSF EEC 0353922. The views expressed in this paper do not necessarily reflect those of NSF. The authors also greatly appreciate the assistance and help of Mr. Dustin Doss and Mr. Steve Niezgoda during the HVOF spraying of the coatings, Mr. Aaron Sakulich during the microscopy and microstructural analysis and Mr. Mark Shiber for machining.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, USA

    L. Jackson

  2. Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, USA

    M. Ivosevic & R. Knight

  3. Department of Chemical and Biological Engineering, Drexel University, Philadelphia, PA, USA

    R. A. Cairncross

Authors
  1. L. Jackson
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  2. M. Ivosevic
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  3. R. Knight
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  4. R. A. Cairncross
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Corresponding author

Correspondence to R. Knight.

Additional information

This article is an invited paper selected from presentations at the 2007 International Thermal Spray Conference and has been expanded from the original presentation. It is simultaneously published in Global Coating Solutions, Proceedings of the 2007 International Thermal Spray Conference, Beijing, China, May 14-16, 2007, Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and Ghislain Montavon, Ed., ASM International, Materials Park, OH, 2007.

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Jackson, L., Ivosevic, M., Knight, R. et al. Sliding Wear Properties of HVOF Thermally Sprayed Nylon-11 and Nylon-11/Ceramic Composites on Steel. J Therm Spray Tech 16, 927–932 (2007). https://doi.org/10.1007/s11666-007-9088-6

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  • DOI: https://doi.org/10.1007/s11666-007-9088-6

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