An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites
An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites
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DOI：
10.1016/j.carbon.2010.09.054
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发表时间：
2011-02-01
期刊：
影响因子：
10.9
通讯作者：
Agarwal, Arvind
中科院分区：
文献类型：
--
作者：
Bakshi, Srinivasa R.;Agarwal, Arvind
通过对Al/CNT复合材料拉伸强度数据的分析，研究了CNT分散度、加工工艺、变形程度以及CNT-基体界面对复合材料弹性模量、强度和韧性的影响。强化可以分为三个制度，表现出减少的强化效果与CNT含量的增加。CNT含量小于2 vol. %时，强化最高。分析了细观力学模型在预测碳纳米管增强金属基复合材料强度和弹性模量方面的适用性。混合物的规则是有效的，在预测的弹性模量的Al/CNT复合材料为低CNT含量（
Tensile strength data of Al/CNT composites from the literature is analyzed to understand the effects of CNT dispersion, processing technique, degree of deformation and CNT-matrix interface on the elastic modulus, strength and toughness of composites. Strengthening can be divided in three regimes which show decreasing strengthening effect with an increasing CNT content. The strengthening is highest for CNT content less than 2 vol.%. The applicability of the micromechanics models in predicting the strength and elastic modulus of CNT reinforced metal matrix composites is also analyzed. The rule of mixtures is effective in predicting the elastic modulus of the Al/CNT composites for low CNT content (