Effect of interfacial reaction on Young's modulus in CNT/Al nanocomposite: A quantitative analysis

Yu, Ziyun; Tan, Zhanqiu; Fan, Genlian; Xiong, Ding‐Bang; Guo, Qiang; Lin, Renbang; Li, Hu; Li, Zhiqiang; Zhang, Di

doi:10.1016/j.matchar.2018.01.024

Cited by 25 publications

(3 citation statements)

References 46 publications

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“…More remarkably, the load transfer strengthening mechanism is effectively increased by interfacial bonding between Al-Al grains and CNT-Al [21,22] due to the anchor effect from the Al matrix [21]. Yu et al [22] found that in order to improve Young's modulus need to be well controlled both raw CNT quality and CNT/Al interfacial reaction. In a word, by comprising the tensile properties of some CNT/Al by various methods, it could be interpreted that flake PM can provide a better combination of strength and ductility than other CNT/Al composite.…”

Section: Introductionmentioning

confidence: 99%

“…In a word, by comprising the tensile properties of some CNT/Al by various methods, it could be interpreted that flake PM can provide a better combination of strength and ductility than other CNT/Al composite. It is attributed to good interfacial bonding, structure integrity and uniform dispersion of CNTs [8,22].…”

Section: Introductionmentioning

confidence: 99%

“…In fact, the existence of the proper surface defects of CNT as a consequence of preparing process is beneficial to improve the comprehensive performance of composite [20,21]. More remarkably, the load transfer strengthening mechanism is effectively increased by interfacial bonding between Al-Al grains and CNT-Al [21,22] due to the anchor effect from the Al matrix [21]. Yu et al [22] found that in order to improve Young's modulus need to be well controlled both raw CNT quality and CNT/Al interfacial reaction.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure Dependent Dislocation Density Evolution in Micro-macro Rolled CNT/Al Composite

Sadeghi¹,

Cavaliere²

2021

Preprint

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Flake powder metallurgy combined with micro/macro rolling was employed to produce CNT/Al composites. The effect of deformation mode on the lamellar ultrafine grain structure and on the dislocation density was analyzed. Additionally, a model based on microstructure and processing parameters is proposed to analyze the effect of size, aspect ratio and crystallography texture of the matrix grains on dislocation density. It was shown that the dislocation density depends on CNTs dispersion degree and CNT-aluminum interfacial bonding level as a consequence of micro rolling process, as well as on the grain refinement, crystallography texture, and high aspect ratio resulted from macro-rolling process. It was demonstrated that the micro/macro rolling process provides the lamellar ultrafine grains with higher dislocation storage capability with respect to equiaxed grains. The described process indicated that it could provide good combination between the CNTs dispersion, CNT-aluminum interfacial bonding as well as crystallography texture, size and shape of the matrix grains.

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