首页|Study on Cu-Al2O3 metal-matrix composite coating prepared by Laser-assisted electrodeposition
Study on Cu-Al2O3 metal-matrix composite coating prepared by Laser-assisted electrodeposition
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原文链接
NSTL
Elsevier
This study introduces laser irradiation into the electrodeposition of Cu-Al2O3 composite coatings. The cavitation bubble generated by laser breakdown in the solution caused strong shockwaves and micro-area agitation that reduced the agglomeration of Al2O3 particles. The shockwave signal was then detected using a hydrophone. Laser irradiation also increased the electrodeposition current due to agitation and temperature rising. The samples prepared by laser assisted electrodeposition with different laser energies were studied. The surface and cross-section morphology were observed using scanning electron microscopy and the content of Al2O3 nanoparticles was measured using X-ray fluorescence spectroscopy. Moreover, the microhardness and corrosion resistance were also studied. The results showed a composite coating with a smoother surface and fewer defects compared to samples prepared by traditional electrodeposition. The content of Al2O3 nanoparticles was increased owning to laser irradiation. Finally, the increase in laser energy, enhanced the microhardness and corrosion resistance of the composite coating.