An electrochemical monitor for the detection of coating degradation in atmosphere

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Journal of the Electrochemical Society; (USA)

DOI:https://doi.org/10.1149/1.2097589· OSTI ID:7009199

Simpson, T C; Moran, P J ^[1]; Moshier, W C ^[2]; Davis, G D; Shaw, B A; Arah, C O ^[3]; Zankel, K L ^[4]

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1. Dept. of Materials Science and Engineering, The Johns Hopkins Univ., Baltimore, MD (US)
2. Martin-Marietta Astronautics Group, Denver, CO (US)
3. Martin-Marietta Laboratories, Baltimore, MD (US)
4. Versar, Inc., Columbia, MD (US)

Electrochemical impedance spectroscopy (EIS) is ideally suited for detection and monitoring of atmospheric corrosion of painted metals based on its sensitivity, essentially non-destructive nature, and its sensitivity, essentially non-destructive nature, and its applicability for continuous monitoring. EIS has been used for several applications in recent years to assess coating degradation in immersion environments. The authors report an atmospheric electrochemical monitor (ATMEIS) capable of detection of paint degradation in the atmosphere via EIS. The ATMEIS consists of a painted steel coupon (total coating thickness, 100-150 microns) upon which a sputter coated electrode (covering less than 10% of the front surface of the sample coupon) has been deposited to serve as a reference/counter electrode combination. The monitor can be used, therefore, in the absence of a remote reference or counter electrode. This monitor can be used to generate EIS data in air (with the aqueous acid electrolyte removed).

• OSTI ID: 7009199
• Journal Information: Journal of the Electrochemical Society; (USA), Journal Name: Journal of the Electrochemical Society; (USA) Vol. 136:9; ISSN JESOA; ISSN 0013-4651
• Country of Publication: United States
• Language: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACIDIFICATION
ALLOYS
BEAMS
CHEMICAL REACTIONS
CHEMISTRY
COATINGS
CORROSION
CORROSIVE EFFECTS
DEPOSITION
DISPERSIONS
ELECTROCHEMISTRY
ELECTRODEPOSITION
ELECTRODES
ELECTROLYSIS
ELECTRON BEAMS
ELEMENTS
ENVIRONMENT
ENVIRONMENTAL IMPACTS
EVAPORATION
GOLD
IRON ALLOYS
IRON BASE ALLOYS
LEPTON BEAMS
LYSIS
METALS
MIXTURES
PARTICLE BEAMS
PHASE TRANSFORMATIONS
POLLUTANTS
PROTECTIVE COATINGS
SIMULATION
SOLUTIONS
SPECTROSCOPY
SPUTTERING
STEELS
SURFACE COATING
TRANSITION ELEMENTS