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  • Detection of various types of corrosion processes by the chaotic analysis of electrochemical noise
    Legat, Andraž ...
    In the present study optical microscopy in combination with computer visualization technique was applied with simultaneous measurements of electrochemical noise. In order to correlate the ... electrochemical noise with the corrosion processes, the results of the analysis of the noise were compared to digitized images of the corroded electrodes, which were periodically recorded. The analysis of measured electrochemical noise contained mathematical treatment in frequency and phase space. Besides power spectrum densities and their parameters, various characteristics of the reconstructed attractors (fractal dimension, the maximum Lyapunov exponent) known from the theory of chaos were also determined. Direct correlation between the corrosion defects on the observed fluctuations of potential and current was establishhed. It was concluded that chaotic analysis of measured electrochemical noise can determine the type of corrosion, and provides also some data thje physical picture of different types of corrosion
    Vrsta gradiva - prispevek na konferenci
    Leto - 1998
    Jezik - angleški
    COBISS.SI-ID - 175719