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- W3080965884 abstract "A 3D simulation model of graphene toughened Al2O3 ceramic materials had been developed to study the fracture behaviour. Voronoi tessellation was used owing to its high similarity to the ceramic grain distribution. In addition, a new method to automatically generate nano-graphene along the Al2O3 grain boundaries was proposed. The Al2O3/graphene interface properties were characterised by the cohesive zone method, wherein cohesive elements along grain boundaries and in grains were generated using Python. Furthermore, the effects of phase interface bonding strength and graphene content on the fracture behaviour were analysed. The results clearly showed the occurrence of both intergranular and transgranular fractures. In addition, some toughening mechanisms induced by nano-graphene such as crack guiding, crack bridging, crack branching, microcracks, and pull-out of graphene have been discussed. The finite element simulation results were consistent with the experimental ones. Therefore, the results presented in this study would be beneficial for improving the design efficiency of Al2O3/graphene ceramic materials." @default.
- W3080965884 created "2020-09-01" @default.
- W3080965884 creator A5056186150 @default.
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- W3080965884 date "2020-12-01" @default.
- W3080965884 modified "2023-09-27" @default.
- W3080965884 title "Nano-graphene toughened Al2O3 ceramic materials: 3D simulation of the fracture behaviour" @default.
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- W3080965884 doi "https://doi.org/10.1016/j.ceramint.2020.08.014" @default.
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