Fabrication of graphene oxide reinforced plasma sprayed Al2O3 coatings |
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| Affiliation: | 1. School of Materials Science and Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin, 300132, China;2. College of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 215000, China;3. Department of Chemistry, Tangshan Normal University, Tangshan, 063000, China;4. Institute of New Materials, Guangdong Academy of Sciences, Guangzhou, 510651, China |
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| Abstract: | Graphene oxide (GO) reinforced Al2O3 ceramic coatings were prepared on the surface of medium carbon steel by plasma spraying. The microstructure of the raw materials and coatings were characterized and analyzed by XPS, XRD, Raman and SEM. The bonding strength of the coatings was studied using a scratch method. The wear resistance of the coatings was assessed by the sliding test. The results showed that, after adding GO, the porosity of the coating reduced by about 31%, the hardness increased by approximately 10%, the bonding strength improved by 250%, and the wear rate reduced by 81% (Load: 30 N) and 84% (Load: 60 N), respectively. |
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| Keywords: | Graphene oxide Plasma spray Wear resistance |
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