From the research state of the thermal properties of graphene reinforced ceramics to the future of computer simulation

Chen, Fei; Yan, Ke; Sun, Jialin; Hong, Jun; Zhu, Yan; Huang, Zhifu

doi:10.1016/j.ceramint.2020.04.265

Cited by 26 publications

(2 citation statements)

References 83 publications

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“…The poor toughness [7,8] of ceramic materials seriously limits their application, so their strengthening and toughening is the first problem to be solved. It is a promising method to disperse two-dimensional graphene sheets into ceramic matrix, which can effectively strengthen and toughen ceramic materials [9][10][11][12]. However, the bonding ability between graphene and ceramic matrix is weak, and there is strong van der Waals force between two-dimensional graphene, which easily leads to matrix agglomeration.…”

Section: Introductionmentioning

confidence: 99%

Carbon reduction of Ti3AlC2 phase for TiC nanosheet production

Bian

Dai

Zhang

et al. 2021

Journal of Asian Ceramic Societies

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In this study, we investigated the formation of TiC nanosheets from carbon black and Ti3AlC2 mixtures in NaCl-KCl eutectic salt. The effects of raw material ratio, molten salt ratio, and heating temperature on TiC formation were studied in detail. Results show that carbon black may enhance the decomposition of amounts of Ti3AlC2 at 1,100°C by heat treatment without salt addition, while molten salt plays key roles in the total decomposition of Ti3AlC2 and the formation of TiC nanosheets at 1,000°C. Higher heating temperature and excess carbon black benefits the synthesis of high content TiC. The as-synthesized TiC nanosheets are approximately 15 nm thick and 80-220 nm long. We propose a possible reaction mechanism that governs TiC formation in molten salts and explain the observations based on kinetic considerations.

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Section: Introductionmentioning

confidence: 99%

Carbon reduction of Ti3AlC2 phase for TiC nanosheet production

Bian

Dai

Zhang

et al. 2021

Journal of Asian Ceramic Societies

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“…Graphene has a high specific surface area and can be closely combined with ceramic matrix, which can improve the fracture toughness of ceramic materials [ 10 , 11 , 12 ]. In recent years, graphene toughened ceramic composite materials have been widely studied [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Characteristic Size and Content of Graphene on the Crack Propagation Path of Alumina/Graphene Composite Ceramics

Chen

Xiao

et al. 2021

Materials

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In this paper, the Voronoimosaic model and the cohesive element method were used to simulate crack propagation in the microstructure of alumina/graphene composite ceramic tool materials. The effects of graphene characteristic size and volume content on the crack propagation behavior of microstructure model of alumina/graphene composite ceramics under different interfacial bonding strength were studied. When the phase interface is weak, the average energy release rate is the highest as the short diameter of graphene is 10–50 nm and the long diameter is 1600–2000 nm. When the phase interface is strong, the average energy release rate is the highest as the short diameter of graphene is 50–100 nm and the long diameter is 800–1200 nm. When the volume content of graphene is 0.50 vol.%, the average energy release rate reaches the maximum. When the velocity load is 0.005 m s−1, the simulation result is convergent. It is proven that the simulation results are in good agreement with the experimental phenomena.

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