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Characterization of Nb$$_{3}$$Al strands subjected to an axial-strain for fusion DEMO reactor

Hemmi, Tsutomu; Koizumi, Norikiyo; Nunoya, Yoshihiko; Okui, Yoshio*; Matsui, Kunihiro; Nabara, Yoshihiro; Isono, Takaaki; Takahashi, Yoshikazu; Okuno, Kiyoshi; Banno, Nobuya*; Kikuchi, Akihiro*; Iijima, Yasuo*; Takeuchi, Takao*

Nb$$_{3}$$Al cable-in-conduit (CIC) conductors have been developed as one of candidates for the fusion DEMO reactor. The performances of superconducting strands in the CIC conductor are affected by transverse electromagnetic force and thermal strain at reaction heat treatment. In order to accurately design the conductors for the fusion DEMO reactor, the performance evaluation of the Nb$$_{3}$$Al strands, which is processed by a rapid heating, quenching and transformation (RHQT) method, was performed under various temperature, magnetic field and axial-strain conditions. The measured and parameterized results of the Nb$$_{3}$$Al strands are presented.

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Category:Engineering, Electrical & Electronic

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