In this study, two copper powders with different size distribution are applied to aluminum substrates using cold gas dynamic spraying. The powders are sprayed with helium gas at ambient temperature and at 200 °C. Investigators measure oxide content in the powders and correlate it with in-flight particle velocity, deposition efficiency, particle deformation, and coating properties including microhardness, structure, and dislocation density.

cold gas dynamic spraying, copper powder, dislocation density, oxide content, particle deformation, particle velocity
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Copyright © 2009 ASM International. All rights reserved.
2009
ASM International
Topics
Dislocations Microstructure Copper powder Particle analysis Cold spray coating Oxygen content
Issue Section:
Cold Spray
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