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PHOTOELECTROCHEMICAL INVESTIGATION OF A.V.PASSIVE FILM ON 304 STAINLESS STEEL |
Licheng Yan;Junxi Zhang;Zengfu Wei;Jianqing Zhang |
杭州师范学院 |
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Abstract A Photoelectrochemical investigation has been carried out on 304 stainless steel alternating voltage (A.V.) passive films in 005mol/L H3BO3+005mol/L Na2B4O7·10H2O solution.The dependences of photocurrent on the measuring potential (E) and the wavelength of incident light have been studied.Results show that the A.V.passive film is a highly disordered amorphous state.The photoelectrochemical behavior of passive film indicates that the passive film is p-type semiconductor.The relationship betweeniph and E is conformity with Poole-Frenkel effect in short potential range,while,it is complicated in the rest potential range owing to the changing of its composition with potential.
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Received: 14 October 2004
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Corresponding Authors:
Licheng Yan
E-mail: yanlicheng@163.com
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