采用电位-电容法结合Mott-Schottky分析技术研究了自腐蚀电位条件下20号碳钢及涂层体系在酸、碱和盐溶液中的半导体导电行为.结果表明,在不同的腐蚀溶液中,随着时间和扫描电位的增加,20号钢空间电荷层电容(Capacitance of space charge layer,Csc)变化规律不同.20号碳钢在5%硫酸溶液和5%硫酸钠溶液中呈现P型半导体导电特征,而在5%氢氧化钠溶液中,20号钢表面形成了两个空间电荷层结构,呈n型半导体特征.环氧清漆在不同电解质溶液中也表现出半导体导电特征,出现由绝缘态向半导体态转变的现象.
参考文献
| [1] | 钟庆东,郑金,徐乃欣,印仁和,周国定.防锈油膜失效过程中的导电行为转变[J].腐蚀科学与防护技术,2004(02):83-86. |
| [2] | 钟庆东,郑金,徐乃欣,印仁和,周国定.防锈油膜在5% Na2SO4溶液中的半导体导电行为[J].腐蚀科学与防护技术,2004(05):276-279. |
| [3] | Zhong Qingdong;Michael Rohwerder;Zhang Zhao .Semiconducting Behavior of Temporarily Protective Oil Coating on the Surface of AISI 304 Stainless Steel to 5 percent Na_2SO_4 Solution during its Degradation[J].Journal of the Electrochemical Society,2004(7):B446-B452. |
| [4] | 陈猛,白雪冬,黄荣芳,闻立时.In2O3：Sn和ZnO：Al透明导电薄膜的结构及其导电机制[J].半导体学报,2000(04):394-399. |
| [5] | Baker RT.;Marques FMB.;Gharbage B. .IONIC AND ELECTRONIC CONDUCTION IN FE AND CR DOPED (LA,SR)GAO3-DELTA[J].Journal of the Electrochemical Society,1997(9):3130-3135. |
| [6] | N. E. hakiki;M. Da Cunha Belo;A. M. P. Simoes;M. G. S. Ferreira .Semiconducting properties of passive films formed on stainless steels: influence of the alloying elements[J].Journal of the Electrochemical Society,1998(11):3821-3829. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%