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Article

A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3

1
State Key Laboratory of Materials Processing and Die and Mould Technology, College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
2
Faculty of Science, Shizuoka University, Shizuoka 422-8529, Japan
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(1), 14; https://doi.org/10.3390/coatings9010014
Received: 1 August 2018 / Revised: 3 December 2018 / Accepted: 25 December 2018 / Published: 27 December 2018
A dense Cr2O3/Al2O3 composite coating was fabricated on 321L stainless steel by electrodepositing an Al2O3 layer on a Cr2O3 coating. The composition, structure, and properties of the obtained ceramic coating were investigated. The results showed that Al2O3 fully infiltrated the Cr2O3 coating and significantly improved the compactness of the ceramic coating by filling in the pores and cracks between the Cr2O3 grains. The composite ceramic coating was heat-treated at 750 °C and exhibited a high microhardness of 219.4 HV500g, a bonding strength of 46.5 MPa, and excellent anti-corrosion and deuterium permeation suppression properties. View Full-Text
Keywords: Cr2O3/Al2O3 composite coating; electrodeposition; bonding strength; corrosion resistance; deuterium permeation Cr2O3/Al2O3 composite coating; electrodeposition; bonding strength; corrosion resistance; deuterium permeation
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MDPI and ACS Style

Di, J.; Liu, W.; Xue, L.; Zhou, Q.; Yan, Y. A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3. Coatings 2019, 9, 14. https://doi.org/10.3390/coatings9010014

AMA Style

Di J, Liu W, Xue L, Zhou Q, Yan Y. A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3. Coatings. 2019; 9(1):14. https://doi.org/10.3390/coatings9010014

Chicago/Turabian Style

Di, Jiao, Wei Liu, Lihong Xue, Qilai Zhou, and Youwei Yan. 2019. "A Dense Cr2O3/Al2O3 Composite Ceramic Coating Prepared by Electrodeposition and Sealing with Al2O3" Coatings 9, no. 1: 14. https://doi.org/10.3390/coatings9010014

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