Evaluation of coating performance with electrochemical impedance spectroscopy (EIS) and electrochemical noise analysis (ENA)
Book
·
OSTI ID:128709
- Univ. of Southern California, Los Angeles, CA (United States)
Thirteen polymer coating systems on steel have been exposed to Pacific ocean water (NS) and artificial seawater (AS). Impedance data and electrochemical noise data have been obtained for two-electrode systems on a weekly basis. For comparison three-electrode impedance measurements have been performed on a monthly basis. Noise data were obtained several times each week. The impedance and noise data at the Port Hueneme, CA test site (NS) were collected by an on-site computer system with a multiplexer which is controlled via modem by a computer system at CEEL/USC. In the laboratory a more traditional approach was used. Experimental data for two coating systems exposed to NS and AS for three months showed that the experimental approach developed for data collection at a remote test site produced reliable results which were in general agreement with results obtained in the laboratory.
- OSTI ID:
- 128709
- Report Number(s):
- CONF-950304--
- Country of Publication:
- United States
- Language:
- English
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