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Influence of the Powder Size Distribution on the Microstructure of Cold-Sprayed Copper Coatings Studied by X-ray Diffraction

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Abstract

Two copper powders were deposited with CGT3000 cold-gas dynamic spray system on aluminum substrates. Mechanical properties have been studied using microhardness, nanoindentation, and bond strength measurements. The deposition efficiency has also been studied. The x-ray diffraction patterns allow the characterization of the microstructure such as grain size, strain in the coating, and dislocation densities. Both powders and coatings have been fully characterized. Three methods have been used to interpret the x-ray patterns: the Warren-Averbach method, the Hall-Williamson (H-W) method, and the modified H-W method. A comparison between the state of the powders before and after deposition will give an insight on the metallurgical processes that take place during the formation of the coating. The influence of the grain size distribution will also be discussed.

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Acknowledgments

This work was funded by the Walloon Government (DGTRE) and the European Social Fund (ESF). n° «EPH3310300R0392»/«215299».

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Authors and Affiliations

  1. Matière & Matériaux, Université Libre de Bruxelles, Rue de l’Industrie 24, Nivelles, 1400, Belgium

    T. Kairet & M. Degrez

  2. Advanced Coating, S.A., Liege, Belgium

    F. Campana & J.-P. Janssen

Authors
  1. T. Kairet
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  2. M. Degrez
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  3. F. Campana
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  4. J.-P. Janssen
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Corresponding author

Correspondence to T. Kairet.

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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Kairet, T., Degrez, M., Campana, F. et al. Influence of the Powder Size Distribution on the Microstructure of Cold-Sprayed Copper Coatings Studied by X-ray Diffraction. J Therm Spray Tech 16, 610–618 (2007). https://doi.org/10.1007/s11666-007-9116-6

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  • DOI: https://doi.org/10.1007/s11666-007-9116-6

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