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Keywords:

  • stretchable conductor;
  • electrical conductivity;
  • superelasticity;
  • high-energy X-ray diffraction
Thumbnail image of graphical abstract

A novel stretchable coaxial NiTi-sheath/Cu-core composite wire was fabricated by means of simple mechanical processing. This composite simultaneously possesses high electric conductivity, high strength and superelasticity. This set of properties renders this composite a unique position in the properties chart of all known electrical conductor materials.