Effect of Reinforcement Type and Amount on Electrical Conductivity in Carbon Nanomaterial Reinforced Al 2024 Alloy
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Keywords:
Al 2024 Composite, GNP, MWCNT, Microstructure, Electrical PropertiesAbstract
In this experimental study, composite structures were obtained by reinforcing graphene nanoplate and carbon nanotube in different proportions by stir casting method into Al 2024 alloy in the first stage. Then, the microstructures of the composites were examined, and measurements were made to determine their electrical properties. It was observed that the GNP reinforcement material exhibited a more stable distribution in the Al2024 matrix, and MWCNT caused aggregation and porosity in the structure and negatively affected the structural integrity. In both GNP and MWCNT reinforced composites, it was determined that the conductive values increased up to 1% reinforcement rate and started to decrease at higher rates after that. It was determined that 1% of GNP supplemented in Al 2024 increased the electrical conductivity by approximately 20% and MWCNT by 12%. The GNP reinforcement material exhibited a slightly higher conductivity value than MWCNT. It was concluded that the unstable structure due to porosity in MWCNT reinforced composites had a negative effect on conductivity and that the shape changes and specific surface area differences between MWCNT and GNP also affected the conductivity values.
References
1 M. Pul, “Investigation Of Abrasion And Machining Properties Of Carbon Nanotube (CNT) And Nano Grafen (G) Reinforced AI 2024 Composites By Vortex Method”, International Journal of Engineering Research and Development, vol. 11, Iss. 1, pp. 370-382, 2019.
2 S. R. Bakshi, D. Lahiri, and A. Agarwal, “Carbon nanotube reinforced metal matrix composites – A Review”, International Materials Reviews, vol. 55, iss. 1, pp. 41-61, 2010.
3 C. Kannan ⇑, R. Ramanujam, Comparative study on the mechanical and microstructural characterisation of AA 7075 nano and hybrid nanocomposites produced by stir and squeeze casting, Journal of Advanced Research, vol. 8, pp. 309–319, 2017.
4 B. Abbasipour, B. Niroumand, S. M. Monir Vaghefi, Compocasting of A356-CNT composite, Trans. Nonferrous Met. Soc. China, vol. 20, pp. 1561−1566, 2010.
5 Adil Nazaruddin, Prof. T. S. Krishnakumar, Effect of Addition of Nanoparticles on the Mechanical Properties of Aluminium, International Journal of Engineering Research & Technology (IJERT), vol. 4, Iss. 08, 2015.
6 Sankara Narayanan.S, Manickavasaham.G, Moorthy S, “Experimental Investigation of Aluminium alloy with MWCNT Composite to increase the Mechanical Properties by Stir Casting Method”, IOSR Journal of Mechanical and Civil Engineering, vol. 12, iss. 4, pp. 30-34, 2015.
7 Prashantha Kumar H.G, M. Anthony Xavior, “Graphene Reinforced Metal Matrix Composite (GRMMC):A Review”, Procedia Engineering, vol. 97, pp. 1033 – 1040, 2014.
8 Afsaneh Dorri Moghadam, Emad Omrani, Pradeep L. Menezes, Pradeep K. Rohatgi, “Mechanical and tribological properties of self-lubricating metal matrix nanocomposites reinforced by carbon nanotubes (CNTs) and graphene: A review”, Composites Part B, vol. 77, 402e420, 2015.
Nanograph Nano Technology, Retrieved January 12, 2023, from https://nanografi.com/
10 C.L. Xu, B.Q. Wei, R.Z. Ma, J. Liang, X.K. Ma, D.H. Wu, “Fabrication Of Aluminum–Carbon Nanotube Composites And Their Electrical Properties” Journal of Composite Materials, 44 (23): pp.2711-2722 DOI: 10.1177/0021998310369590, 2010.
11 Güler, O., Varol, T., Alver, Ü., & Canakci, A. (2020). Effect of Al2O3 content and milling time on the properties of silver coated Cu matrix composites fabricated by electroless plating and hot pressing. Materials Today Communications, 24, 101153.
12 C. D. Marini, N. Fatchurrohman, “A view on the fabrication techniques of aluminium matrix nanocomposites”, Jurnal Teknologi (Sciences & Engineering), vol.74, Iss. 10, pp. 103–109, 2015.
