材料科学
微观结构
陶瓷
复合材料
体积分数
弹性模量
复合数
相(物质)
极限抗拉强度
有机化学
化学
作者
Dong Wang,Zhenzhen Zhang,ZhiBao Li,Qinghua Wang,Bo Qiu,Quanli Han,Wenyao You
标识
DOI:10.1016/j.ceramint.2022.03.126
摘要
In order to investigate the effect of microstructure parameters on the elastic modulus, based on the microstructure model represented by Voronoi tessellation, the reasonable macro-micro connection and boundary conditions were proved through the Hill's lemma, and the uniaxial tensile process of composite ceramic tool materials was simulated. The influences of grain size, second phase volume fraction and nanoparticle volume fraction on elastic properties were studied through numerical simulation, and the elastic modulus of composite ceramic tool materials was predicted. The results showed the elastic modulus of Al2O3-based ceramic tool materials could be increased effectively with the contents of the second phase TiB2 and nano-particle TiC being 20% and 10%, respectively. The numerical simulation results were in good agreement with the experimental results.
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