Abstract
To increase the wear resistance of polymer matrix composites, alumina coatings were deposited on polymer substrates by a two-step method combining plasma spraying and micro-arc oxidation. The microstructures and phase compositions of the processed coatings were investigated for different treatment times. Uniformly distributed pores were found in addition to the presence of various coral-like structures and floccules on the surface of the coatings. The presence of α-Al2O3 and γ-Al2O3 phases was identified by XRD. The distribution of alumina was analyzed by EDS and is discussed. The maximum bond strength of the coatings was found to be 5.89 MPa. There was little thermal damage in the polymer substrates after the coatings were produced.
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This work was supported by the Major Research Plan of the National Natural Science Foundation of China for He Xiaodong (Grant No. 90816005).
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Sun, G., He, X., Jiang, J. et al. A Study on the Deposition of Al2O3 Coatings on Polymer Substrates by a Plasma Spray/Micro-Arc Oxidation Two-Step Method. J Therm Spray Tech 22, 27–35 (2013). https://doi.org/10.1007/s11666-012-9865-8
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DOI: https://doi.org/10.1007/s11666-012-9865-8