A study of the passive films on chromium by capacitance measurement
文献类型：期刊论文
| 作者 | D. S. Kong ; S. H. Chen ; C. Wang ; W. Yang |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2003 |
| 卷号 | 45期号:4页码:747-758 |
| 关键词 | chromium passive film capacitance acceptor density flatband potential specific adsorption electron-transfer reactions semiconducting properties stainless-steels alloying elements defect structure iron impedance ellipsometry stability surfaces |
| ISSN号 | 0010-938X |
| 中文摘要 | Using capacitance measurement and Mott-Schottky analysis, the semiconducting properties of passive films formed on chromium within the passive potential range under different conditions were investigated. The study reveals a p-type behavior of the passive layers. Two semiconductive parameters, i.e., the acceptor density (N-A) and the flatband potential (E-FB), which are mainly related to composition and surface charges of the passive films, have been measured. The effect of film formation potential, passivation time, pH and composition of solutions on the parameters are discussed. N-A increases either with lowering film formation potentials or with prolonging passivation times. This is attributed to the transformation of a less hydrated oxide film into a more hydrated form. The changes of E-FB are discussed as a function of adsorptive anions and pH values of electrolyte solution. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35873]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | D. S. Kong,S. H. Chen,C. Wang,et al. A study of the passive films on chromium by capacitance measurement[J]. Corrosion Science,2003,45(4):747-758. |
| APA | D. S. Kong,S. H. Chen,C. Wang,&W. Yang.(2003).A study of the passive films on chromium by capacitance measurement.Corrosion Science,45(4),747-758. |
| MLA | D. S. Kong,et al."A study of the passive films on chromium by capacitance measurement".Corrosion Science 45.4(2003):747-758. |
入库方式： OAI收割
来源：金属研究所
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