Fabrication of ZnO–GO hybrid for enhancement of chemically bonded phosphate ceramic coatings corrosion protection performance on AISI304L stainless steel

In this paper, a solvothermal method is used to prepare nano‐sized zinc oxide‐graphene oxide (ZnO–GO) hybrid, and the ZnO–GO hybrid is characterized by X‐ray diffraction analysis, Raman, Fourier transform infrared spectroscopy, and scanning electron microscopy. In addition, chemically bonded phospha...

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Bibliographic Details
Published in:International journal of applied ceramic technology 2020-11, Vol.17 (6), p.2612-2621
Main Authors: Tang, Hao, Liu, Yaxuan, Bian, Da, Guo, Yongxin, Zhao, Yongwu
Format: Article
Language:English
Subjects:
Adhesives
Aluminum
Austenitic stainless steels
Ceramic bonding
Ceramic coatings
Chemical bonds
Chemically bonded ceramics
chemically bonded phosphate ceramic coatings
corrosion performance
Corrosion prevention
Electrochemical analysis
Fourier transforms
Graphene
graphene oxide
Infrared analysis
Morphology
Nanoparticles
Protective coatings
Sol-gel processes
Stainless steel
Zinc oxide
Zinc oxides
ZnO
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Summary:In this paper, a solvothermal method is used to prepare nano‐sized zinc oxide‐graphene oxide (ZnO–GO) hybrid, and the ZnO–GO hybrid is characterized by X‐ray diffraction analysis, Raman, Fourier transform infrared spectroscopy, and scanning electron microscopy. In addition, chemically bonded phosphate ceramics coatings with different content of ZnO–GO hybrid are prepared on the stainless steel through the sol‐gel method. The corrosion performance of the coatings is evaluated by electrochemical properties and the analysis of the surface and cross morphology of the coating. Results indicate ZnO–GO hybrid significantly enhances the compactness and corrosive behavior of the coating because the overlapping structure of GO flake improves the barrier performance of the coating. Besides, ZnO nanoparticles on the surface of GO can react with aluminum dihydrogen phosphate binder, in that case the adhesion between GO and the coating is improved.
ISSN:1546-542X
1744-7402
DOI:10.1111/ijac.13584