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Cold Spray of Metal-Polymer Composite Coatings Onto Carbon Fiber-Reinforced Polymer (CFRP)
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2016
Year
Materials ScienceIrregular Cu ParticlesFibre-reinforced PlasticThermal Spray CoatingEngineeringThermal Barrier CoatingPolymer ScienceMechanical EngineeringCold SprayComposite TechnologyMulti-functional CoatingCu Powder MorphologyProtective CoatingSpherical Cu Particles
Abstract In this work, copper and PEEK powder mixtures are cold sprayed onto carbon fiber-reinforced polymer (CFRP) substrates with the aim of producing a well-adhered conductive layer. The composite coatings were optimized through the study of the deposited mass and its dependence on process parameters and Cu powder morphology. A morphological model based on Cu phase data was developed to better understand coating microstructures. Coatings synthesized from irregular Cu particles were found to be electrically conductive, while those containing spherical Cu particles were insulating. These phenomena are explained using the developed simulation tools coupled with the investigation of coating build-up and microstructure.