Anodic grounding electrodes made of electroconducting elastomers: Estimating their electrochemical parameters and reliability by the operational impedance method

Autor: Akol’zin, A. P., Beketaeva, L. A., Davydov, A. D., Kopytin, V. E., Rybalka, K. V.
Zdroj: Russian Journal of Electrochemistry; October 2000, Vol. 36 Issue: 10 p1133-1136, 4p
Abstrakt: The electrochemical behavior of electrodes made of electroconducting elastomers and intended for anodically grounding metal pipelines, to protect them electrochemically, is considered. The electrodes’ transition resistance Rtris selected as the main parameter characterizing their operational state. Dependences of Rtron the chargeqpassed through the electrodes are obtained for different anodic polarization current densities. The dependences suggest that predicting the electrodes’ performance at elevated polarization current densities is well justified. The performance and lifetime of the electrodes can be predicted by comparing the measured value of Rtrwith a calibration Rtrvs.qcurve for a given electrode type.
Databáze: Supplemental Index
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