Characterisation of Organic Coatings Using Artificial Laser Defects and Impedance Measurements

Monitoring initial contact of UV-cured organic coatings with aqueous solutions using odd random phase multisine electrochemical impedance spectroscopy

“…When following Fickian diffusion, follows a linear relationship compared to √ t [42]. Therefore, the dielectric constant of the coating can be determined via a linear regression.…”

“…From the data of the water uptake, the diffusion coefficient of water can also be determined. Geenen [42] has determined the relationship between the volumetric fraction of water and time, displayed in equation 13, with the volumetric water fraction at saturation φ s , the diffusion coefficient D, the thickness of the coating δ and the time t as parameters.…”

Service life prediction of organic coatings: electrochemical impedance spectroscopy vs actual service life

“…[1][2][3] Until now, many EIS studies have focused on the change in the impedance of coated metals as they undergo either natural or artificial exposure to conditions that cause corrosive failure of such systems. [4][5][6][7][8] One of the best advantages of this technique is its ability to quantify the relative performance of two coatings. In general, evaluations are performed simply by checking the time taken by the coating to deviate from its purely capacitative behavior during natural or artificial exposure.…”