EIS STUDY ON ZINC RICH PAINTS IN 3.5% NaCl SOLUTION BY DOUBLE-CELL TEST

Abstract

Abstract: This paper discussed the possibility of obtaining electrochemical impedance spec-troscopy (EIS) responses of zinc rich paints (ZRP) using serial double-cell (SDC).The influence of counter electrode was outlined. An equivalent circuit (EC) for thedouble-cell was then discussed. The relationship between EC, the time constant, theparameters in EC of SDC and those of two single cells was also discussed. The resultsgained by serial double cell test are consistent with those of single cell test. It can beconcluded that double cell test method can be used to study ZRP completely.

Key words: serial double-cell, zinc rich paints, EIS, NaCl solution

D.M. Xie, J.M. Hu, J.M. Wang. EIS STUDY ON ZINC RICH PAINTS IN 3.5% NaCl SOLUTION BY DOUBLE-CELL TEST[J]. Acta Metallurgica Sinica (English Letters), 2002, 15(3): 299-306 .

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