Characterization of Organic Coatings on Metal Substrates by Electrochemical Impedance Spectroscopy

Titz, J.; Wagner, Guntram; Spähn, H.; Ebert, M.; Jüttner, K.; Lorenz, W.J.

doi:10.5006/1.3585095

Cited by 100 publications

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“…In general terms, the coatings studied show corrosion resistance and good protective efficacy. This behavior is probably due to the low oxidation of Bi and Si in the sintering process and to the good adhesion of the films to the substrate 23,24 . It can also be attributed to the morphological influence in the films concluding that they have a homogeneous structure with small grains but present some pores allowing the working electrolyte to pass through the interface substrate coating and lead to possible delamination of the Film 25,26 .…”

Section: Resultsmentioning

confidence: 99%

“…The change of the corrosion potentials of the coatings with respect to the corrosion potential of the substrate is observed. The corrosion potential takes more positive values with respect to the substrate 23,24 . It is noteworthy that some velocities present a better anticorrosive performance than others, this is concluded when comparing the results of corrosion potential values and corrosion current for the studied films, as shown in Table-5.…”

Section: Resultsmentioning

confidence: 99%

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Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Bautista-Ruiz¹,

Aperador²,

Olaya³

2018

RJC

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In this investigation, the compound Bi24Si40O2 was synthesized via sol-gel and applied on substrates of 316L stainless steel by spin coating varying speed. In the coatings obtained, the corrosion response in simulated physiological solution was evaluated by electrochemical impedance spectroscopy and polarization potentiodynamic curves. The morphology and surface topography was studied, also, were determined the microstructure, thickness values and roughness of the coatings. The results of this study allow establishing a high degree of anticorrosive effectiveness offered by the coatings as a function of the number of layers applied to the substrate and their possible application in the biomedical industry.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Bautista-Ruiz¹,

Aperador²,

Olaya³

2018

RJC

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“…These models have been applied for the industrial screening of organic coatings on bare and phosphated steel in 0.5 M NaCl solution (Titz et al, 1990). even after exposure times of up to half a year.…”

Section: Single Layer Impedance Modelmentioning

confidence: 99%

“…The admittance Z" 1 of the parallel combination of Z L and Z corr is the sum of the admittances of both contributions weighted by the degree of coating coverage 0 z (j coy 1 = 0xz L (j coy 1 + aluminum, which consist of a thin barriertype layer and a thick porous layer. The dimensions and properties of both layers are known to depend on the technical conditions of sulfuric acid anodization and the sealing conditions (Titz et al, 1990;Hitzig et al, 1986;Paatsch et al, 1987;Jiittner et al, 1989). The impedance of this sandwich film can be described sufficiently well by the models given in Fig.…”

Section: Single Layer Impedance Modelmentioning

confidence: 99%

Novel Electrochemical Techniques in Corrosion Research

Grundmeier

Jüttner

Stratmann

2013

Materials Science and Technology

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The sections in this article are Introduction Experimental Investigation of Corrosion Reactions by Analysis of the Corrosion Products Experimental Investigation of Corrosion Reactions by Following the Chemical Reaction Rate Experimental Investigation of Corrosion Reactions by Following the Rate of the Electrochemical Corrosion Reaction Electrochemical Impedance Spectroscopy and Noise Analysis Introduction The Principle of Dynamic System Analysis Measurement of the Electrochemical Impedance Presentation of Impedance Data Interpretation of Impedance Data The Polarization Resistance Frequency Dispersion Surface Inhomogeneities Single Layer Impedance Model Sandwich Layer Impedance Model Equivalent Circuit Versus Transfer Function The Transport Impedance Iron Corrosion in Neutral Solution Impedance Model of Passive Films Metal Dissolution and Active‐to‐Passive Transition Electrochemical Noise Noise Sources in Electrochemical Systems Noise Measurement Techniques Data Processing Noise Resistance and Polarization Resistance The Scanning Vibrating Electrode Technique Introduction History of Scanning Reference Electrodes Basic Principles of Localized Potential Mapping Localized Electrochemical Impedance Spectroscopy ( LEIS ) Applications of Modern Scanning Electrode Techniques Local Breakdown of Passivity Galvanic Corrosion Inhibition Microbiologically Influenced Corrosion Protective Polymeric Coatings Concluding Remarks Scanning Kelvinprobe Introduction Theory of the Vibrating Condenser Method The Relation between the Volta Potential Difference and Corrosion‐Relevant Properties Electrolyte Covered Metal Surfaces Metals in Humid Air Polymer‐Coated Metals Calibration of the Kelvinprobe Application of the Kelvinprobe: Atmospheric Corrosion Experimental Results Application of the Kelvinprobe: Corrosion Protection by Organic Coatings Experimental Polymer‐Coated Steel Polymer Coated Galvanized Steel Polymer Coated Aluminum Alloys Industrial Coatings Application of the Kelvinprobe: Corrosion Protection by Modified Metal Surfaces Metal Surfaces Modified by Monolayers of Organic Molecules Metal Surfaces Modified by Ultra‐Thin Plasma Polymers Metal Surfaces Modified by Inorganic and Organic Layers

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“…This last parameter is obtained from extrapolation to t = 0. From the double layer capacitance, C dl , the fraction of the surface with loss of adhesion, D, can also be determined [99]:…”

Section: Relevant Parametersmentioning

confidence: 99%

Corrosion Protection by Organic Coatings

Grundmeier

Simões

2003

Encyclopedia of Electrochemistry

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The sections in this article are Introduction The Composition of Corrosion Protecting Organic Coatings Binder Pigments Anticorrosive Pigments Fillers and Additives Solvents Transport Phenomena in Organic Coatings Transport of Oxygen Transport of Water and Ions Adhesion of Organic Coatings Introduction to the Mechanisms of Protection and Degradation Mechanisms of Protection Blistering Corrosion Initiation Cathodic Delamination Anodic Undermining Application of Electrochemical Methods for the Characterization of the Protective Properties of Organic Coatings on Metals Monitoring of the Open Circuit Potential Electrochemical Impedance Spectroscopy Basic Analysis Equivalent Circuits Relevant Parameters Electrochemical Noise Scanning Reference Electrode Techniques The Application of the Scanning Kelvin Probe System Metal–Polymer–Humid Air System Metal–Oxide–Polymer–Humid Air System Metal–Metal Oxide–Electrolyte–Polymer–Humid Air Sample Preparation for SKP Measurements Corrosion Mechanisms of Polymer‐coated Metals Corrosion of Polymer‐coated Iron Introduction Cathodic Delamination on Polymer‐coated Iron Degradation of the Interface by the Oxygen Reduction Process Corrosion of Polymer‐coated Zinc and Galvanized Steel Cathodic Delamination on Polymer‐coated Zinc Cathodic Protection in the Case of Polymer‐coated Galvanized Steel FFC on Polymer‐coated Iron, Aluminum, and Magnesium Introduction to FFC Initiation of FFC Propagation of Filaments Transport of Oxygen Electrochemical and Auxiliary Measurements of FFC Influence of Surface Treatments and Compositions of Organic Coatings on the Corrosion Kinetics Conversion Coatings Adhesion Promoters and Interfacial Thin Films Influence of Pigments in Paints Intrinsically Conducting Polymers Overall Conclusions

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Characterization of Organic Coatings on Metal Substrates by Electrochemical Impedance Spectroscopy

Cited by 100 publications

References 0 publications

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Effect of Centrifugal Speed on the Anticorrosive Properties of Bismuth-Silicon Coatings by Sol-Gel on 316l Substrates

Novel Electrochemical Techniques in Corrosion Research

Corrosion Protection by Organic Coatings

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