Coreless Multidisc Axial Flux PM Machine with Carbon Nanotube Windings

Vandana Rallabandi, Narges Taran, Dan M. Ionel, John F. Eastham

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Coreless axial flux permanent magnet (AFPM) machines are attracting increasing attention due to their compact structure and high torque density. The torque to weight ratio can be further enhanced by the use of alternate conductor materials, such as carbon nanotube (CNT), or aluminum windings in place of the copper material coils. This paper proposes a coreless AFPM synchronous motor with CNT windings. Analytical equations are developed to allow a systematic comparison of machine designs with different conductor materials. The performance of machine designs with different coil materials, namely, copper, aluminum, and CNT, is evaluated and compared. The calculations are also backed by 3-D finite-element analysis.

Original languageEnglish
Article number8102904
JournalIEEE Transactions on Magnetics
Issue number6
StatePublished - Jun 2017

Bibliographical note

Publisher Copyright:
© 1965-2012 IEEE.


  • Axial flux machine
  • carbon nanotube (CNT) conductors
  • coreless motor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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