Reinforcing effect of graphene on the mechanical properties of Al<sub>2</sub>O<sub>3</sub>/TiC ceramics

Zuo-li Li; Jun Zhao; Jia-lin Sun; Feng Gong; Xiu-ying Ni

doi:10.1007/s12613-017-1533-z

Volume 24 Issue 12

Dec. 2017

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文章导航 > 矿物冶金与材料学报（英文） > 2017 > 24(12): 1403-1411

Zuo-li Li, Jun Zhao, Jia-lin Sun, Feng Gong, and Xiu-ying Ni, Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics, Int. J. Miner. Metall. Mater., 24(2017), No. 12, pp. 1403-1411. https://doi.org/10.1007/s12613-017-1533-z

Cite this article as:

Zuo-li Li, Jun Zhao, Jia-lin Sun, Feng Gong, and Xiu-ying Ni, Reinforcing effect of graphene on the mechanical properties of Al2O3/TiC ceramics, Int. J. Miner. Metall. Mater., 24(2017), No. 12, pp. 1403-1411. https://doi.org/10.1007/s12613-017-1533-z

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研究论文

Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics

Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China

通讯作者:
Jun Zhao E-mail: zhaojun@sdu.edu.cn

中文摘要

Multilayer graphene (MLG)-reinforced Al₂O₃/TiC ceramics were fabricated through hot pressing sintering, and the reinforcing effect of MLG on the microstructure and mechanical properties of the composites was investigated by experiment and simulation. The simulation of dynamic crack initiation and propagation was investigated based on the cohesive zone method. The results show that the composite added with 0.2wt% MLG has excellent flexural strength and high fracture toughness. The major reinforcing mechanisms are the synergistic effect by strong and weak bonding interfaces, MLG pull-out, and grain refinement resulting from the addition of MLG. In addition, the aggravating of crack deflection, branching, blunting, and bridging have indispensable contribution to the improvement of the as-designed materials.

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Research Article

Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics

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Abstract

Abstract

Multilayer graphene (MLG)-reinforced Al₂O₃/TiC ceramics were fabricated through hot pressing sintering, and the reinforcing effect of MLG on the microstructure and mechanical properties of the composites was investigated by experiment and simulation. The simulation of dynamic crack initiation and propagation was investigated based on the cohesive zone method. The results show that the composite added with 0.2wt% MLG has excellent flexural strength and high fracture toughness. The major reinforcing mechanisms are the synergistic effect by strong and weak bonding interfaces, MLG pull-out, and grain refinement resulting from the addition of MLG. In addition, the aggravating of crack deflection, branching, blunting, and bridging have indispensable contribution to the improvement of the as-designed materials.
- mechanical properties;
- ceramics;
- graphene;
- simulation;
- interface

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Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics

中文摘要

Reinforcing effect of graphene on the mechanical properties of Al₂O₃/TiC ceramics

Abstract

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