Results 261 to 270 of about 102,672 (281)

Controled Potentiostatic Measurements of Electrochemical Noise

CORROSION 2000, 2000
Abstract A new controlled potentiostatic electrochemical noise (P-ECN) technique was developed to improve the correlation between current and potential noise. This technique enhances monitoring of both general and localized corrosion. P-ECN uses a standard one-working, three-electrode electrochemical cell where both current noise and ...
V. Jovancicevic, A. N. Rotimell
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Electrochemical Resistance Noise during Composite Plating

Journal of The Electrochemical Society, 1998
A theoretical and experimental study is presented about the resistance variation caused by spherical particles on the flow of current to disk electrodes embedded in an insulating plane. The calculation of the resistance variation was combined with a trajectory analysis to predict the resistance noise caused by nonconducting particles suspended in the ...
Bouet, Véronique, Fransaer, J., Huet, François, Maurin, Georges, Celis, J.   +4 more
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Validation of Electrochemical Noise Measurements

CORROSION 2012, 2012
Abstract Electrochemical noise measurement is established as a means of estimation of corrosion rate, and methods for the identification of localized corrosion have been proposed. Many of these methods make the assumption that two electrodes used to measure current noise have similar behavior; this paper examines tests based on measured ...
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Corrosion Monitoring Using Electrochemical Noise Measurements

CORROSION 1989, 1989
Abstract The paper describes the use of electrochemical noise, the measurement of potential and current fluctuations, for corrosion monitoring. Also included is the outline of a data management system developed for data logging and analysis of the advanced electrochemical monitoring measurements. The PC based system has been particularly
J.L. Dawson, D.M. Farrell, P.J. Aylott, K. Hladky   +3 more
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Median Chebyshev spectroscopy of electrochemical noise

Journal of Solid State Electrochemistry, 2016
An algorithm for analyzing electrochemical noise based on Chebyshev spectroscopy using the sample median is presented. Chebyshev spectroscopy with the sample median nicely complements Chebyshev spectroscopy with the sample mean. Chebyshev noise spectroscopy with the sample median can be used to distinguish between corrosion processes, which cannot be ...
B. M. Grafov, Yu. A. Dobrovolskii, A. L. Klyuev, A. E. Ukshe, A. D. Davydov, E. A. Astaf’ev   +5 more
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Wavelet analysis of potentiostatic electrochemical noise

Materials Letters, 2007
Abstract Potentiostatic critical pitting temperature test was performed for a superduplex stainless steel. The electrochemical noise from the test was analyzed by wavelet transform and the results were compared with those by maximum entropy method.
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Corrosion of dissimilar alloys: Electrochemical noise

Electrochimica Acta, 2011
A new approach for interpreting the electrochemical noise generated by freely corroding electrodes is presented. For a single electrode, with well-defined anodic and cathodic regions, it is proposed that the instantaneous values of the corrosion current and open circuit potential are functions of the time-invariant potential difference between the ...
Curioni, M., Cottis, R. A., Di Natale, M., Thompson, G. E.   +3 more
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Electrochemical Noise Analysis for Corrosivity Assessment

CORROSION 2000, 2000
Abstract The fluctuations of corrosion potentials at single electrodes or the variations in current between two electrodes electrically coupled are increasingly accepted as a highly sensitive method for monitoring the corrosivity of environments.
P.R. Roberge, R.D. Klassen, M. Tullmin
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Noise Analysis Applied to Electrochemical Systems

Corrosion, 1995
Random fluctuations of the electrical quantities (electrode potential and cell current) in electrochemical systems commonly are referred to as electrochemical noise. The present work describes the main sources of noise, the experimental methods used for its measurement, and some of the schemes for its analysis, with particular emphasis to corrosion ...
Bertocci, Ugo, Huet, François
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Electrochemical Noise Measurement for Corrosion Applications

1996
Description Presents a state-of-the-art review on electrochemical noise as it is applied to corrosion today. Many diverse industrial applications for electrochemical noise measurement (ENM) are presented along with the latest laboratory methods of analysis techniques.
JR Kearns, JR Scully, PR Roberge, DL Reichert, JL Dawson   +4 more
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