Article (Scientific journals)
Corrosion resistance enhancement of a sol-gel coating by incorporation of modified carbon nanotubes: Artificial neural network (ANN) modeling and experimental explorations
Akbarzadeh, Sajjad; Akbarzadeh, Kazem; Ramezanzadeh, Mohammad et al.
2023In Progress in Organic Coatings, 174, p. 107296
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Keywords :
Artificial neural network (ANN); Corrosion; EIS; Multi-walled carbon nanotube (MWCNT); Silane; Artificial neural network; Artificial neural network modeling; Electrochemical-impedance spectroscopies; Methods of data analysis; Modified carbon; Multi-walled carbon nanotube; Multi-walled-carbon-nanotubes; MWCNT's; Resistance enhancement; Sol-gel coatings; Chemical Engineering (all); Surfaces, Coatings and Films; Organic Chemistry; Materials Chemistry; General Chemical Engineering
Abstract :
[en] A computational method of data analysis based on an artificial neural network (ANN) has been proposed to model the behavior of a sol-gel coating modified with different amounts of oxidized multi-walled carbon nanotubes (O-MWCNT). The constructed ANN model utilized a single hidden-layer perceptron. The Levenberg–Marquardt algorithm optimization procedure was applied as a learning algorithm. In this model, the input variables were the different concentrations of O-MWCNT, the immersion time, and the real part of the impedance, and consequently, the imaginary part of the impedance was considered as the output variable. Then, the accuracy of the optimized model was evaluated using the correlation coefficient and schematically comparing the simulated data with the experimental ones in the Nyquist diagrams. Furthermore, the protection performance of the sol-gel layer was enhanced by the incorporation of O-MWCNTs. To this end, the different concentrations of the O-MWCNTs up to 0.9 % wt./wt. have been added to a silane layer, and the performance was followed by electrochemical exploration using electrochemical impedance spectroscopy (EIS). The results revealed the improvement of the protective performance of the silane coating by increasing the content of the O-MWCNTs in the matrix, followed by the enhancement of barrier properties. Moreover, the polarization curves, in agreement with the AC impedance spectra, reflected the significant decrease in the corrosion current density by employing more content of O-MWCNTs in the silane-based coatings.
Research center :
CRIM - Ingénierie des matériaux
Disciplines :
Materials science & engineering
Author, co-author :
Akbarzadeh, Sajjad ;  Université de Mons - UMONS > Faculté Polytechnique > Service de Science des Matériaux ; School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
Akbarzadeh, Kazem;  Abadan Faculty of Petroleum Engineering, Petroleum University of Technology, Abadan, Iran
Ramezanzadeh, Mohammad;  Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, Tehran, Iran
Naderi, Reza;  School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
Mahdavian, Mohammad;  Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, Tehran, Iran
Olivier, Marie-Georges  ;  Université de Mons - UMONS
Language :
English
Title :
Corrosion resistance enhancement of a sol-gel coating by incorporation of modified carbon nanotubes: Artificial neural network (ANN) modeling and experimental explorations
Publication date :
2023
Journal title :
Progress in Organic Coatings
ISSN :
0300-9440
Publisher :
Elsevier B.V.
Volume :
174
Pages :
107296
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
F502 - Science des Matériaux
Research institute :
R400 - Institut de Recherche en Science et Ingénierie des Matériaux
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since 09 January 2023

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