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Open AccessArticle

Effect of Different Raw Material Property for the Fabrication on Al/CNT Nanocomposite Using a Ball Mill with a Discrete Element Method (DEM) Simulation

1
Engineering Research Center (ERC) for Integrated Mechatronics Materials and Components, Changwon National University, Changwon, Gyoungnam 641-773, Korea
2
Graduate School of Material Science Engineering, Changwon National University, Changwon, Gyoungnam 641-773, Korea
3
Department of Mechanics Convergence, College of Engineering, Changwon National University, Changwon, Gyoungnam 641-773, Korea
*
Author to whom correspondence should be addressed.
Materials 2019, 12(20), 3291; https://doi.org/10.3390/ma12203291
Received: 6 September 2019 / Revised: 2 October 2019 / Accepted: 8 October 2019 / Published: 10 October 2019
(This article belongs to the Special Issue Mechanical Behavior of Composite Materials)
Carbon nanotubes (CNTs) have received interest as an attractive reinforcing agent metal matrix composites regarded as an increase to mechanical properties of the final product. Aluminum/carbon nanotubes (Al/CNTs) nanocomposites were observed with different raw material at the optimized experimental condition. In this study, Al-based CNTs composites were three different samples, including un-milled Al, un-milled Al with CNTs, and milled Al with CNTs nanocomposites in the presence of additional CNTs with various experimental conditions while using a traditional ball mill (TBM). The particle morphology and CNT dispersions of milled composites were respectively analysed by scanning electron microscopy (SEM) and field emission scanning electron microscopy (FESEM), and the mechanical properties of the fabricated composites were tested. In each sample, CNTs were well dispersed on the surface of Al powder at different experimental conditions for milling in a TBM. The Al/CNTs nanocomposites were processed by compacting, sintering and rolling process. The Vickers hardness was used to characterize the mechanical properties. The hardness of Al/CNTs nanocomposites that were fabricated with milled Al with CNT was higher than the reached to in the nanocomposites prepared with the use of un-milled Al with CNT nanocomposites. Therefore, the discrete element method (DEM) simulation was used to complete quantitative analysis. The flow pattern, impact force, and energy at various experimental conditions are considered. The results of the simulations are compared with experimental data. View Full-Text
Keywords: aluminum-based matrix composites; traditional ball mill; DEM simulation; mechanical alloying aluminum-based matrix composites; traditional ball mill; DEM simulation; mechanical alloying
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Jargalsaikhan, B.; Bor, A.; Lee, J.; Choi, H. Effect of Different Raw Material Property for the Fabrication on Al/CNT Nanocomposite Using a Ball Mill with a Discrete Element Method (DEM) Simulation. Materials 2019, 12, 3291.

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