| 黄铜铬酸表面膜的导电性 |
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| 引用本文： | 贺春林,孙秋霞,崔建忠,韩文安.黄铜铬酸表面膜的导电性[J].东北大学学报(自然科学版),1998,19(3):244-246. |
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| 作者姓名： | 贺春林 孙秋霞 崔建忠 韩文安 |
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| 作者单位： | 1. 东北大学材料与冶金学院,沈阳,110006
2. 中国科学院金属腐蚀与防护研究所,沈阳,110015 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，863-715-06-09， |
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| 摘 要： | 采用金属－膜金属结构测量了黄铜在铬酸中形成的表面膜的导电性。实验得到膜的导电性良好，虽为半导体，却表现出准金属行为这一瑟文献报导不同的结论。
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| 关 键 词： | 黄铜 钝化膜 导电性 |
The Electrical Properties of Surface Film Formed on Brass in Chromic Acid |
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| He Chunlin,Sun Qiuxia,Cui Jianzhong,Han Wenan.The Electrical Properties of Surface Film Formed on Brass in Chromic Acid[J].Journal of Northeastern University(Natural Science),1998,19(3):244-246. |
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| Authors: | He Chunlin Sun Qiuxia Cui Jianzhong Han Wenan |
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| Abstract: | Electrical measurements were carried out on surface film formed on brass in chromic acid with the film sandwiched between two metallic electrodes. The results show that the film has a high electrical conductivity,it belongs to a semi conductor,but behaves as a quasi metallic conduct. These results are different from the ones reported before in literature. The composition of the film was analysed,an energy band model for the metal film metal structure was established and two back to back schottky diodes were proved to exist in the structure. Qualitative analyses indicate that such different electrical properties are due to heavy defects and impurities in the film. |
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| Keywords: | brass passive film electrical properties |
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