Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-28T03:05:22.101Z Has data issue: false hasContentIssue false

Highly Conductive Wire: Cu Carbon Nanotube Composite Ampacity and Metallic CNT Buckypaper Conductivity

Published online by Cambridge University Press:  27 December 2016

Henry C. de Groh III*
Affiliation:
NASA Glenn Research Center, Cleveland, OH 44135, U.S.A.
*
Get access

Abstract

Carbon nanotube (CNT) composites are being explored to improve the conductivity and density of electrical wire used in aviation. Presented are the current carrying capacity of a CNT-Cu composite and Roman spectroscopy and electrical conductivity of Buckypaper (BP) made of normal and sorted 95% metallic CNT (m-CNT). The ampacity of the Cu-CNT composite was 3.8% lower than pure Cu. This is significant because it is not in agreement with high CNT ampacity claims. The average conductivity of the CNT in the sorted, 95% metallic BP was 2.5 times higher than the CNT in the un-sorted BP. This shows the importance of the intrinsic CNT conductivity as opposed to interfacial resistances and that the conductivity of the semiconductor CNT present in the un-sorted BP must be much lower than the conductivity of m-CNT. The high conductivity of the sorted BP provides proof that conductivity improvements in CNT composites can be made by the use of sorted, highly conductive m-CNT.

Keywords

Type
Articles
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Rolt, A., and Whurr, J. in Optimizing Propulsive Efficiency in Aircraft with Boundary Layer Ingesting Distributed Propulsion, (22nd Int. Symp. on Air Breathing Engines, Phoenix, AZ, 2015), ISABE-2015-20201, pp. 110.Google Scholar
Welstead, J. R., and Felder, J. L. in Conceptual Design of a Single-Aisle Turboelectric Commercial Transport with Fuselage Boundary Layer Ingestion, (AIAA SciTech Conf., 54th AIAA Aerospace Sciences Meeting, San Diego, CA, 2016), AIAA-2016-1027, pp. 117.Google Scholar
Bradley, M. K., and Droney, C. K., “Subsonic Ultra Green Aircraft Research Phase II: N+4 Advanced Concept Development,” NASA/CR—2012–217556 (2012).Google Scholar
Bandaru, P. R., J. Nanosci. Nanotechnol. 7, 3, 129 (2007).Google Scholar
Liu, J., and Hersam, M. C., MRS Bull. 35, 315321 (2010).Google Scholar
de Groh, H. C. III, “Consideration of Conductive Motor Winding Materials at Room and Elevated Temperatures,” NASA/TM—2015-218882 (2015).Google Scholar
SouthWest NanoTechnologies, Technical Data Sheet, FW100X, Few-Wall Carbon Nanotubes, 4.15.2015 Rev 5(2015). (last retrieved Jan. 19, 2016): http://www.swentnano.com/uploads/3/0/7/0/30708225/fw100x_tds_rev5.pdf Google Scholar
NanoIntegris Technical Data Sheet, IsoNanotubes-M, -S, and PureTubes, (NanoIntegris, Skokie, IL, 2015). http://raymor.com/wp-content/uploads/2015/01/Carbon-Nanotubes-Technical-Data-Sheet.pdf (last retrieved Jan. 19, 2016).Google Scholar
Kim, K. K., Park, J. S., Kim, S. J., Geng, H. Z., An, K. H., Yang, C-M., Sato, K., Saito, R., and Lee, Y. H., Phys. Rev. B 76, 205426 (2007).Google Scholar
de Groh, H. C. III,“Ramon Spectroscopy and Electrical Conductivity of metallic carbon nanotube Buckypaper and Ampacity of a CNT-Cu Composite,” in press NASA/TM 2016.Google Scholar
Subramaniam, C., Yamada, T., Kobashi, K., Sekiguchi, A., Futaba, D. N., Yamura, M., and Heta, K., Nat. Commun. 4, 2202 (2013).Google Scholar
Dyke, C., Jacob, L. M., Madden, D., and Barrera, V. in Ultrahigh Conductivity Umbilicals: Polymer Nanotube Umbilicals (Offshore Technology Conference, Houston, TX, 2013), OTC-24255, pp. 15.Google Scholar
Costa, S., Borowiak-Palen, E., Kruszynska, M., Bachmatiuk, A., and Kalenczuk, R. J., Mater. Sci.-Poland 26, 2, 433440 (2008).Google Scholar
Pimenta, M. A., Dresselhaus, G., Dresselhaus, M. S., Cancado, L. G., Jorio, A., and Saito, R., Phys. Chem. Chem. Phys. 9, 12761291 (2007).Google Scholar
Xue, Y., “Experimental Study of Electrical Conductivity of Carbon Nanotube, Nanofiber Buckypapers and Their Composites,” M.S. Thesis, Florida State Univ., Tallahassee, FL (2007).Google Scholar
Liu, J-H., Miao, H-Y., Lakshmanan, S., Wang, L-C., and Tsai, R-H., J. Nanomater. 2013 (2013). http://www.hindawi.com/journals/jnm/2013/635647/ (last retrieved Feb. 3, 2016).Google Scholar
Yeh, C-S., “A Study of Nanostructure and Properties of Mixed Nanotube Buckypaper Materials: Fabrication, Process Modeling Characterization, and Property Modeling,” Ph.D. Thesis, Florida State University, Tallahassee, FL (2007), p. 147.Google Scholar
Aldalbahi, A., Carbon, 50, 3, 11971208 (2012).Google Scholar
Yang, K., He, J., Puneet, P., Su, Z., Skovel, M. J., Gaillard, J., Tritt, T. M., and Rao, A. M., J. Phys. Condens. Matter 22, 16(2010). http://iopscience.iop.org/article/10.1088/0953-8984/22/33/334215/meta;jsessionid=5825D471AA4D0BAE435C931F8FBABC21.c2.iopscience.cld.iop.org (last retrieved Feb 2, 2016).Google Scholar