Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1471299 | Corrosion Science | 2008 | 5 Pages |
Abstract
The semiconducting properties of the passive films on electroplated Ni and Ni–Co alloys were investigated using Mott–Schottky analysis. The cyclic voltammetry (CV) behaviors of Ni indicate that the film thickness will not increase unless the applied potential is higher than 0.504 V (vs. HgO/Hg). The passivity samples treated with CV reveal their behaviors are that of a p-type semiconductor. The three semiconductive parameters, the acceptor density (NA), the flatband potential (Efb) and the thickness of the space charge layer (Lsc) were calculated from the Mott–Schottky plots, respectively. The relationship between the parameters and the protective characters against corrosion was analyzed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Jianqiang Kang, Yifu Yang, Xi Jiang, Huixia Shao,