High-performance micro-electroforming based on the use of Nano-La3O2
The effects of the rare earth nano-La2O3 added to the basic sulfamate solution on microstructure of micro-electroforming nickel layers and its property were studied. The cathodic polarization curves of nano-La2O3 on the surface of cathodic electrode were determined, and the surface microstructure evolution of micro-electroforming layers was examined and analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). It has been found that the cathodic polarization of the electrodepositing process was increased due to occurring of nano-La2O3 special adsorption on electrode surface, which could result in crystal refining and lighting of electroforming layer. Moreover, its crystal orientation had strong (220) texture and the micro-hardness could be improved substantially with the addition of nano-La2O3 . The mechanical properties of micro-electroforming layers could be greatly improved.
Micro-electroforming Nano-La2O3 Polarization curve Property
雷卫宁 朱荻 李冬林 刘浏 李仁兴
江苏技术师范学院机械工程学院 江苏常州 213001 南京航空航天大学机电学院 江苏南京 210016
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）