期刊
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
卷 -, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1007/s41779-023-00960-1
关键词
Graphene oxide; Biodegradable; MG63; Biocompatibility; Electrophoretic deposition
In this research, TiO2-MgO dual layer coatings were applied on AZ91D magnesium alloy, and a graphene oxide layer was added by electrophoretic deposition to enhance the surface crack resistance. The results showed that the GO layer diffused and connected cracks, providing optimal biocompatibility properties for the AZ91D alloy.
Graphene oxide can connect sheets to other materials with covalent bonds due to the presence of oxygen groups and has medical applications due to its biocompatibility properties. In this research, TiO2-MgO dual layer coatings were applied on AZ91D magnesium alloy by magnetron sputtering method. After that, graphene oxide layer was applied as a filler to increase the surface resistance to cracks using the electrophoretic deposition (EPD) method. X-ray diffraction (XRD) analysis showed the presence of GO peaks and the Raman spectrum showed good and defect-free GO scattering. Microstructural investigations showed that the GO layer diffused the cracks on the surface of the layers and connected the cracks like a bridge. According to the results of the in vitro test, the TiO2-MgO-GO multilayer coating can provide the properties of biocompatibility optimally for the AZ91D alloy.
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