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DIGITAL LIBRARY: CAMX 2023 | ATLANTA, GA | OCTOBER 30-NOVEMBER 2

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Development of conductive lightweight nanofiber reinforced composite for aircraft lightning strike protection

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Title: Development of conductive lightweight nanofiber reinforced composite for aircraft lightning strike protection

Authors: Mohammad B Uddin, Israt Jahan, Ajit D Kelkar, Ram V Mohan

DOI: 10.33599/nasampe/c.23.0161

Abstract: During the last few decades, application of carbon fiber reinforced polymer (CFRP) composites in aircraft structural elements have been steadily increased. CFRP composites are lightweight, corrosion resistant and possesses better mechanical properties, fatigue resistance and lower thermal expansion. However, they are nearly 2000 times less electrically conductive than previously used aluminum alloys which makes them prone to serious structural damage in the event of a lightning strike. To protect the aircraft, the outer surface is covered with highly conductive metallic jacket which consequently reduces the weight advantage of the CFRP composite. There is a dire need for a lightweight alternative for lightning strike protection which will be just as effective. In this study, electrospun carbon nanofibers were coated with copper to develop a conductive nanofiber network. When it comes to electrical properties, copper and carbon shows complementary characteristics. Copper is better in electrical conductivity and possesses low contact resistance where carbon is very lightweight and have high current carrying capability. Despite having exceptionally high electrical conductivity when tested individually, carbon allotropes show much less conductivity in macro-scale primarily due to high contact resistance. By coating the carbon with copper, carbon-carbon contact was replaced by copper-copper contact, hence reducing the contact resistance. Copper coatings were mostly less than 100 nm in thickness, so it kept the weight gain to a minimum. The study shows significant decrease in sheet resistance in the resultant conductive filler in comparison to the carbon nanofiber mat. Copper coating parameters were successfully optimized to ensure homogeneous coating thickness throughout the structure.

References: [1] Z. Zhao et al., “Light weight non-metallic lightning strike protection film for CFRP,” Materials Today Communications, vol. 25, p. 101502, Dec. 2020, doi: 10.1016/j.mtcomm.2020.101502. [2] W. Bauhofer and J. Z. Kovacs, “A review and analysis of electrical percolation in carbon nanotube polymer composites,” Composites Science and Technology, vol. 69, no. 10, pp. 1486–1498, Aug. 2009, doi: 10.1016/j.compscitech.2008.06.018. [3] W. S. Bao, S. A. Meguid, Z. H. Zhu, and G. J. Weng, “Tunneling resistance and its effect on the electrical conductivity of carbon nanotube nanocomposites,” Journal of Applied Physics, vol. 111, no. 9, p. 093726, May 2012, doi: 10.1063/1.4716010. [4] J. Li, P. C. Ma, W. S. Chow, C. K. To, B. Z. Tang, and J.-K. Kim, “Correlations between Percolation Threshold, Dispersion State, and Aspect Ratio of Carbon Nanotubes,” Advanced Functional Materials, vol. 17, no. 16, pp. 3207–3215, 2007, doi: 10.1002/adfm.200700065. [5] S. Maiti, S. Suin, N. K. Shrivastava, and B. B. Khatua, “A strategy to achieve high electromagnetic interference shielding and ultra low percolation in multiwall carbon nanotube–polycarbonate composites through selective localization of carbon nanotubes,” RSC Advances, vol. 4, no. 16, pp. 7979–7990, 2014, doi: 10.1039/C3RA46480F. [6] X. Cauchy, J.-E. Klemberg-Sapieha, and D. Therriault, “Synthesis of Highly Conductive, Uniformly Silver-Coated Carbon Nanofibers by Electroless Deposition,” ACS Appl. Mater. Interfaces, vol. 9, no. 34, pp. 29010–29020, Aug. 2017, doi: 10.1021/acsami.7b06526. [7] C. Subramaniam et al., “One hundred fold increase in current carrying capacity in a carbon nanotube–copper composite,” Nat Commun, vol. 4, no. 1, Art. no. 1, Jul. 2013, doi: 10.1038/ncomms3202. [8] C. Subramaniam et al., “Carbon nanotube-copper exhibiting metal-like thermal conductivity and silicon-like thermal expansion for efficient cooling of electronics,” Nanoscale, vol. 6, no. 5, pp. 2669–2674, Feb. 2014, doi: 10.1039/C3NR05290G. [9] C. Subramaniam, A. Sekiguchi, T. Yamada, D. N. Futaba, and K. Hata, “Nano-scale, planar and multi-tiered current pathways from a carbon nanotube–copper composite with high conductivity, ampacity and stability,” Nanoscale, vol. 8, no. 7, pp. 3888–3894, Feb. 2016, doi: 10.1039/C5NR03762J. [10] P.-M. Hannula et al., “Carbon nanotube-copper composites by electrodeposition on carbon nanotube fibers,” Carbon, vol. 107, pp. 281–287, Oct. 2016, doi: 10.1016/j.carbon.2016.06.008. [11] P.-M. Hannula et al., “Observations of copper deposition on functionalized carbon nanotube films,” Electrochimica Acta, vol. 232, pp. 495–504, Apr. 2017, doi: 10.1016/j.electacta.2017.03.006. [12] Y. Jin, L. Zhu, W. Xue, and W. Li, “Fabrication of superaligned carbon nanotubes reinforced copper matrix laminar composite by electrodeposition,” Transactions of Nonferrous Metals Society of China, vol. 25, no. 9, pp. 2994–3001, Sep. 2015, doi: 10.1016/S1003-6326(15)63926-7. [13] P. G. Koppad, H. R. A. Ram, C. S. Ramesh, K. T. Kashyap, and R. G. Koppad, “On thermal and electrical properties of multiwalled carbon nanotubes/copper matrix nanocomposites,” Journal of Alloys and Compounds, vol. 580, pp. 527–532, Dec. 2013, doi: 10.1016/j.jallcom.2013.06.123. [14] L. K. Randeniya, A. Bendavid, P. J. Martin, and C.-D. Tran, “Composite Yarns of Multiwalled Carbon Nanotubes with Metallic Electrical Conductivity,” Small, vol. 6, no. 16, pp. 1806–1811, 2010, doi: 10.1002/smll.201000493. [15] R. Sundaram, T. Yamada, K. Hata, and A. Sekiguchi, “The influence of Cu electrodeposition parameters on fabricating structurally uniform CNT-Cu composite wires,” Materials Today Communications, vol. 13, pp. 119–125, Dec. 2017, doi: 10.1016/j.mtcomm.2017.09.003. [16] R. M. Sundaram, A. Sekiguchi, M. Sekiya, T. Yamada, and K. Hata, “Copper/carbon nanotube composites: research trends and outlook,” Royal Society Open Science, vol. 5, no. 11, p. 180814, 2018, doi: 10.1098/rsos.180814. [17] J. M. Tao, X. F. Chen, P. Hong, and J. H. Yi, “Microstructure and electrical conductivity of laminated Cu/CNT/Cu composites prepared by electrodeposition,” Journal of Alloys and Compounds, vol. 717, pp. 232–239, Sep. 2017, doi: 10.1016/j.jallcom.2017.05.074. [18] G. Xu, J. Zhao, S. Li, X. Zhang, Z. Yong, and Q. Li, “Continuous electrodeposition for lightweight, highly conducting and strong carbon nanotube -copper composite fibers,” Nanoscale, vol. 3, no. 10, pp. 4215–4219, 2011, doi: 10.1039/C1NR10571J. [19] J. Tersoff, “Contact resistance of carbon nanotubes,” Appl. Phys. Lett., vol. 74, no. 15, pp. 2122–2124, Apr. 1999, doi: 10.1063/1.123776.

Conference: CAMX 2023

Publication Date: 2023/10/30

SKU: TP23-0000000161

Pages: 10

Price: $20.00

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