An AC Impedance Characteristics of the Cerium Oxide Film Formed on the Aluminum Surface

WANG Xindong; WU Shimin; LIU Yanfang; SUN Gensheng; DUAN Shuzhen

doi:10.13374/j.issn1001-053x.2001.04.009

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WANG Xindong, WU Shimin, LIU Yanfang, SUN Gensheng, DUAN Shuzhen. An AC Impedance Characteristics of the Cerium Oxide Film Formed on the Aluminum Surface[J]. Chinese Journal of Engineering, 2001, 23(4): 320-323. doi: 10.13374/j.issn1001-053x.2001.04.009

Citation:

WANG Xindong, WU Shimin, LIU Yanfang, SUN Gensheng, DUAN Shuzhen. An AC Impedance Characteristics of the Cerium Oxide Film Formed on the Aluminum Surface[J]. Chinese Journal of Engineering, 2001, 23(4): 320-323. doi: 10.13374/j.issn1001-053x.2001.04.009

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An AC Impedance Characteristics of the Cerium Oxide Film Formed on the Aluminum Surface

doi: 10.13374/j.issn1001-053x.2001.04.009

Deparmentt Physical Chemistry, UST Beijing, Beijing 100083, China

Received Date: 2001-01-12

Abstract

Abstract

Electrochemical impedance spectroscope (EIS) of aluminum alloy in cerie solution was investigated to study the film formation.The corrosion resistance of aluminum coated with cerie films was also disscused.Typical EIS spectral changes were clearly observed during the film formation processes. EIS results indicated that cerie film can form on the aluminum surface by chemical treatment and cathodic polarization treatment. The film has good corrosion resistance.
- impedance,
- cerium oxide film,
- corrosion,
- aluminum alloy