The formation of pure aluminium corrosion sensing film on fiber and its electrochemical performance

✍ Scribed by Z. Qiu; Y. Luo; S. Song

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: German
• Weight: 228 KB
• Volume: 58
• Category: Article
• ISSN: 0947-5117
• DOI: 10.1002/maco.200604005

✦ Synopsis

Abstract

Recently, more and more attention has been put on the research of taking advantages of a fiber sensor on corrosion monitoring, because of its small volume, low weight, quick response, and excellent electromagnetism disturbing resistance etc. But a report about the application of fiber optical sensor is hardly found. In this paper, with the technology of vacuum sputter, pure aluminum corrosion sensing film was directly deposited on the core of fiber corroded away clad. Metallographic Microscope and Scanning Electron Microscope (SEM) were used to analyze the structure of the film. It shows that the thickness of the pure aluminum corrosion sensing film is about 14.65 μm, and the film is distributed even and firm. Galvanostatic step were used to evaluate the corrosion resistance in NaCl solution with different concentrations (0.001–0.1 mol/L). The result shows that the corrosion resistance of the sensing film is similar to that of industrial pure aluminum in NaCl solution with the concentration less than 0.1 mol/L. The work in this paper contributes to the research of fiber optical corrosion sensor for monitoring corrosion of aluminum.