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STUDY ON PROPERTIES OF CoNi FILMS WITH Mn DOPING PREPARED BY MAGNETIC FIELDS INDUCED CODEPOSITION TECHNOLOGY

Author

Listed:
  • LIANG GANG

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • YUNDAN YU

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • HONGLIANG GE

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • GUOYING WEI

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • LI JIANG

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

  • LIXIA SUN

    (College of Materials Science and Engineering, China Jiliang University, Hang Zhou 310018, P. R. China)

Abstract

Magnetic field parallel to electric field was induced during plating process to prepare CoNiMn alloy films on copper substrate. Electrochemistry mechanism and properties of CoNiMn alloy films were investigated in this paper. Micro magnetohydrodynamic convection phenomenon caused by vertical component of current density and parallel magnetic field due to deformation of current distribution contributed directly to the improvement of cathode current and deposition rate. Cathode current of the CoNiMn plating system increased about 30% with 1T magnetic field induced. It was found that CoNiMn films electrodeposited with magnetic fields basically belonged to a kind of progressive nucleation mode. Higher magnetic intensity intended to obtain CoNiMn films with good crystal structures and highly preferred orientations. With the increase of magnetic intensities, surface morphology of CoNiMn alloy films changed from typically nodular to needle-like structures. Compared with coatings electrodeposited without magnetic field, CoNiMn alloy films prepared with magnetic fields possessed better magnetic properties. Coercivity, remanence and saturation magnetization of samples increased sharply when 1T magnetic field was induced during plating process.

Suggested Citation

  • Liang Gang & Yundan Yu & Hongliang Ge & Guoying Wei & Li Jiang & Lixia Sun, 2018. "STUDY ON PROPERTIES OF CoNi FILMS WITH Mn DOPING PREPARED BY MAGNETIC FIELDS INDUCED CODEPOSITION TECHNOLOGY," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(01), pages 1-10, January.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:01:n:s0218625x18500373
    DOI: 10.1142/S0218625X18500373
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