【摘要】 本文通过对蓝色铬膜层的XPS分析及电化学方法研究了该膜层的沉积过程。结果表明,整个膜层可分为:120nm厚的交界层（主要成分是Cr和基底Ni）,250nm厚的中间层（Cr₂O₃,Ct和CtSe,后者决定了膜层呈蓝色）,以及100nm厚的表面层(吸附的Cr（Ⅵ）、Cr（Ⅲ）,SeO₄^2-和Se),对电沉积历程和机理进行了探讨。更多还原

【Abstract】 Blue chromium films prepared by cathodic electrodeposition on Ni substrate in a solutionof CrO₃, H₂SO₄ and H₂SeO₄ have been studied by XPS and electrochemical measurement. Theresults indicated that the blue chromium films were made up of three layers, correspondingto the three steps in deposition: （1）The reduction of an oxide layer （NiOCrOH） to metallicNi and Cr, which made an inner layer of about 120nm in thickness. （2）The reduction ofCr（Ⅵ）and the depositions of Cr, Cr₂O₃ and CrSe, which formed a medium layer of about250nm. （3）The deposition and absorbtion of Cr（Ⅲ） and H₂SO₄ and its reduced products,which formed an outer layer of about 100nm.更多还原