北京科技大学学报Issue(6)：787-794,8.DOI:10.13374/j.issn1001-053x.2014.06.012
垂直稳恒磁场下 Fe-纳米 Si 颗粒复合电沉积
Electrodeposition of Fe-nano-Si particle composite coatings in a perpendicular static magnetic field
摘要
Abstract
Fe-Si composite coatings were prepared by nano-composite electroplating in a static magnetic field parallel to the electrode surface. The effects of magnetic flux density and current density on the cathode current efficiency and silicon content in the coatings were studied. The coatings were characterized by scanning electron microscopy and energy dispersive spectrometry. It is found that the cathode current efficiency first increases and then decreases with increasing magnetic flux density. The mass fraction of silicon in the coatings reaches its maximum value of 20. 17% at 0. 2 T, which increases by 10. 4% compared with that without any magnetic field. In addition, the smooth surface morphology of the coatings turns into “mountain ranges”, whose directions are the same to the direction of magnetohydrodynamic convection (MHD). More and longer “mountain ranges” appear with increasing magnetic flux densi-ty. Owing to MHD effect, the magnetic field also influences the surface morphology of hydrogen pores and promotes the evolution of hydrogen.关键词
复合镀层/电沉积/磁场/纳米颗粒/磁流体力学/硅钢Key words
composite coatings/electrodeposition/magnetic fields/nanoparticles/magnetohydrodynamics/silicon steel分类
矿业与冶金引用本文复制引用
周鹏伟,钟云波,龙琼,孙宗乾,范丽君,郑天祥,周俊峰..垂直稳恒磁场下 Fe-纳米 Si 颗粒复合电沉积[J].北京科技大学学报,2014,(6):787-794,8.基金项目
国家自然科学基金资助项目(51034010) （51034010）
