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SEMICONDUCTING BEHAVIOR OF 304 STAINLESS STEEL IN ELECTROLYTE SOLUTION |
ZHONG Qingdong1;2;WANG Chao1;LU Xionggang1;M.Rohwerder3;ZHOU Guozhi1 |
1.School of Materials Science and Engineering; Shanghai University; Shanghai 200072
2.Department of Environmental Engineering; Shanghai University of Electric Power; Shanghai 200090
3.Max-Planck-Institut für Eisenforschung; Düsseldorf; 40237 Germany |
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Abstract The semiconducting behavior of 304 stainless steel in acid and base solution was studied by utilizing potential-capacitance and Mott-Schottky analysis. It was pointed out that conducting behaviour of 304 stainless steel in different solution was different. The stainless steel showed double layer of space charge layer in 5‰ sulfuric acid, below 0 VSCE, the steel electrode showed p-type semiconducting behaviour, above 0 VSCE, the steel electrode showed n-type semiconducting behaviour. However, in 5% sodium hydroxide, the electrode showed p-type semiconducting behaviour.With increasing immersion time, the density of charge carriers in different solution changed slightly.
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Received: 05 February 2007
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Corresponding Authors:
ZHONG Qingdong
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