scholarly journals Using Electrochemical Impedance Spectroscopy Sinusoidal Potential Amplitude to Assess the Efficiency of Niobium Oxide Based Organic Coating in Oil Wells Produced Water

2016 ◽  
pp. 10511-10521
Author(s):  
Rodrigo de Siqueira Melo ◽  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Niobium Oxide ◽  
Produced Water ◽  
Electrochemical Impedance ◽  
Organic Coating ◽  
Oil Wells ◽  
Potential Amplitude

A Research on the Performance of Grey Chassis Organic Coating on Vehicle Equipment

2013 ◽  
Vol 325-326 ◽  
pp. 75-78
Author(s):  
An Tao Xu ◽  
Bing Luo ◽  
Fan Zhang ◽  
Tian Ru Zhang ◽  
Ying Wang
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Linear Relationship ◽  
Theoretical Basis ◽  
Electrochemical Impedance ◽  
Simulation Method ◽  
Organic Coating ◽  
Damage Degree ◽  
Damage Simulation ◽  
Protective Performance

By adopting coating damage simulation method with electrochemical impedance spectroscopy, the influence of different damage degree K of grey chassis organic coating to its protective performance has been studied. The research found that electrochemical impedance spectroscopy could reflect the damage degree K of the coating. When K is less than or equal to 0.11, the coating still has prefect protective performance, when K is higher than or equal to 2.78, the protective performance of the coating is very low, and when K falls in between, the protective performance of the coating is just favorable; There exist a linear relationship between log (|Z|0.1Hz) and log K, which may provide a theoretical basis to evaluate the protective performance of such kind of coatings.

scholarly journals An Insight on Corrosion Resistance Ability of Biocompatible Dental Implants through Electrochemical Impedance Spectroscopy

2021 ◽  
Author(s):  
Duduzile Nkomo ◽  
Nomsombuluko Masia
Keyword(s):  
Corrosion Resistance ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Corrosion Behaviour ◽  
Organic Coating ◽  
Biomedical Implants ◽  
Implant Surface ◽  
High Impedance ◽  
Surface Modified

Corrosion resistance is an important requirement in the study of biomedical implants. Implant surface can be modified to provide good adherence and/or optimum biocompatibility with the human body at the bone-implant interface. Titanium alloys are typically used because of their excellent corrosion resistance and biocompatibility. However, to improve these properties, the alloy surface is roughened using alumina (Al2O3). More details on the corrosion resistance of these alloys can be obtained by using electrochemical impedance spectroscopy (EIS) method. EIS is the most suitable method for monitoring corrosion rate values due to its reproducibility, it is non-destructive and has reliable determination of small corrosion rates, much lower than those measured by other techniques. It can also study high-impedance systems, such as coatings and linings, high-purity water, and organic coating/metal systems or corrosion in a low-conductive solution. This method has been used to evaluate electrochemical properties of modified surfaces. This chapter will explore the effectiveness of EIS in studying the corrosion behaviour of machined and surface-modified Pure Ti grade 4 for dental implant applications. The basic EIS concepts are discussed and their derivation thereof to provide information about the corrosion resistance of biomedical implants is explored.

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