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A comparison of the electrochemical behaviors of pyrite and chalcopyrite in a NaCl solution at room temperature and under differential stress
Qingyou Liu; Heping Li
2010
Source PublicationMinerals Engineering
Volume23Issue:9Pages:691-697
AbstractElectrochemical behaviors of pyrite and chalcopyrite were studied by measuring polarization curves and electrochemical impedance spectroscopy (EIS) in a NaCl solution at room temperature and under differential stress. The results from differential stress experiments show that there is a negative linear relation between potential difference and elastic stress. The corrosion current density distinctly increased, and the corrosion potential became more negative with an increase in differential stress. The charge transfer electrical resistance increased, the double layer capacitance decreased, and other characteristic parameters are observed with increasing differential stress. The experimental results are significant for sulfide mineral engineering. By using different equivalent electrical circuits, the point defect model, and corrosion theory, we explain the experimental results theoretically.
Subject Area地球深部物质与流体作用地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6822
Collection地球内部物质高温高压实验室_地球内部物质高温高压实验室_期刊论文
Recommended Citation
GB/T 7714
Qingyou Liu,Heping Li. A comparison of the electrochemical behaviors of pyrite and chalcopyrite in a NaCl solution at room temperature and under differential stress[J]. Minerals Engineering,2010,23(9):691-697.
APA Qingyou Liu,&Heping Li.(2010).A comparison of the electrochemical behaviors of pyrite and chalcopyrite in a NaCl solution at room temperature and under differential stress.Minerals Engineering,23(9),691-697.
MLA Qingyou Liu,et al."A comparison of the electrochemical behaviors of pyrite and chalcopyrite in a NaCl solution at room temperature and under differential stress".Minerals Engineering 23.9(2010):691-697.
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