Determination of the Phosphate Quality of Automotive Organic Coatings on Different Steel Substrates by Electrochemical Impedance Spectroscopy

1991 ◽  
Author(s):  
Kim-Hang Ruiz ◽  
Dennis D. Davidson
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Organic Coatings ◽  
Steel Substrates

scholarly journals Electrochemical Impedance Spectroscopy Investigation on the Clinical Lifetime of ProTaper Rotary File System

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Virgil Penta ◽  
Cristian Pirvu ◽  
Ioana Demetrescu
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Oxide Layer ◽  
File System ◽  
Electrochemical Impedance ◽  
Protective Layer ◽  
Electrochemical Technique ◽  
Clinical Aspects ◽  
Surface Oxide Layer

The main objective of the current paper is to show that electrochemical impedance spectroscopy (EIS) could be a method for evaluating and predicting of ProTaper rotary file system clinical lifespan. This particular aspect of everyday use of the endodontic files is of great importance in each dental practice and has profound clinical implications. The method used for quantification resides in the electrochemical impedance spectroscopy theory and has in its main focus the characteristics of the surface titanium oxide layer. This electrochemical technique has been adapted successfully to identify the quality of the Ni-Ti files oxide layer. The modification of this protective layer induces changes in corrosion behavior of the alloy modifying the impedance value of the file. In order to assess the method, 14 ProTaper sets utilized on different patients in a dental clinic have been submitted for testing using EIS. The information obtained in regard to the surface oxide layer has offered an indication of use and proves that the said layer evolves with each clinical application. The novelty of this research is related to an electrochemical technique successfully adapted for Ni-Ti file investigation and correlation with surface and clinical aspects.

scholarly journals Electrochemical Impedance Spectroscopy for the Measurement of the Corrosion Rate of Magnesium Alloys: Brief Review and Challenges

Metals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 775 ◽  
Author(s):  
Sebastián Feliu
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Corrosion Rate ◽  
Electrochemical Impedance ◽  
State Of The Art ◽  
Point Of View ◽  
Reliable Determination ◽  
Corrosion Rates ◽  
Non Destructive

From a technological point of view, measurement of the corrosion rate of magnesium (Mg) and its alloys is critical for lifetime predictions of Mg-based structures and for comparative assessments of their corrosion protection ability. Whilst weight loss, hydrogen evolution, and polarization curves methods are frequently used for measuring the corrosion rate, the determination of values by electrochemical impedance spectroscopy (EIS) is relatively scarce and has only been realized recently. This technique seems to be the most suitable for monitoring corrosion rate values due to its “non-destructive” character, its reproducibility, and its reliable determination of small corrosion rates, much lower than those measured by other techniques. This review aims to picture the state-of-the-art technique of using EIS for measuring the corrosion rate of Mg. This paper starts by introducing some fundamental aspects of the most widely used methods for monitoring the corrosion rate of Mg/Mg alloy and continues by briefly explaining some of the fundamental concepts surrounding EIS, which are essential for the user to be able to understand how to interpret the EIS spectra. Lastly, these concepts are applied, and different approaches that have been proposed to obtain quantitative values of corrosion rate since the 1990s are discussed.

scholarly journals Modelling of an equivalent circuit for Cu2ZnSnS4- and Cu2ZnSnSe4-based thin film solar cells

RSC Advances ◽  
2017 ◽  
Vol 7 (41) ◽  
pp. 25347-25352 ◽  
Author(s):  
Naoyuki Shibayama ◽  
Yiwen Zhang ◽  
Tetsuo Satake ◽  
Mutsumi Sugiyama
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Equivalent Circuit ◽  
Electrochemical Impedance ◽  
Internal Resistance ◽  
Thin Film Solar Cells

The internal resistance and quality of the interface in CZTS solar cells were investigated using electrochemical impedance spectroscopy.

scholarly journals Contribution to a better understanding of different behaviour patterns observed with organic coatings evaluated by electrochemical impedance spectroscopy

2009 ◽  
Vol 51 (6) ◽  
pp. 1322-1327 ◽  
Author(s):  
M.C.S.S. Macedo ◽  
I.C.P. Margarit-Mattos ◽  
F.L. Fragata ◽  
J.-B. Jorcin ◽  
N. Pébère ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Organic Coatings

scholarly journals Determination of SoH of Lead-Acid Batteries by Electrochemical Impedance Spectroscopy

2018 ◽  
Vol 8 (6) ◽  
pp. 873 ◽  
Author(s):  
Monika Kwiecien ◽  
Julia Badeda ◽  
Moritz Huck ◽  
Kuebra Komut ◽  
Dilek Duman ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Lead Acid Batteries ◽  
Lead Acid

Electrochemical impedance spectroscopy determination of glyphosate using a molecularly imprinted chitosan

2020 ◽  
Vol 309 ◽  
pp. 127753 ◽  
Author(s):  
Fares Zouaoui ◽  
Saliha Bourouina-Bacha ◽  
Mustapha Bourouina ◽  
Imad Abroa-Nemeir ◽  
Hamdi Ben Halima ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Molecularly Imprinted
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