An extended characterization of European advanced Nb

L. Muzzi, S. Chiarelli, A. Della Corte, A. Di Zenobio, M. Moroni, A. Rufoloni, A. Vannozzi, E. Salpietro, A. Vostner

Research output: Contribution to journalArticle

7 Citations (Scopus)


Within the framework of ITER-related projects, new tasks have been recently launched by EFDA CSU Garching (European Fusion Development Agreement Close Support Unit Garching), for the definition and production on industrial scale of advanced Nb3Sn strands, to be used in the manufacturing of the ITER high field CS and TF magnets. We performed an extended characterization of the advanced Nb3Sn strands coming from different European companies, in terms of strand layout (diameter, thickness of Cr coating, Cu:non-Cu ratio), critical transport current, RRR, and hysteresis losses. The results of the measurement campaign show that the upgraded strands meet the latest ITER requirements, with an overall critical transport current of at least 200 A (at 12 T, 4.2 K), equivalent to a non-Cu Jc of about 800 A /mm2, a Cu:non-Cu ratio of about 1, a strand diameter of 0.81 mm, and with non-Cu hysteresis losses limited to less than 1000 kJ/m3on a ±3 T field cycle at 4.2 K. © 2006 IEEE.
Original languageEnglish
Article number1643077
Pages (from-to)1253 - 1256
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number2
Publication statusPublished - Jun 2006
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Muzzi, L., Chiarelli, S., Della Corte, A., Di Zenobio, A., Moroni, M., Rufoloni, A., ... Vostner, A. (2006). An extended characterization of European advanced Nb. IEEE Transactions on Applied Superconductivity, 16(2), 1253 - 1256. [1643077].