Structure and stability of superconducting core of single-core Mg[B.sub.2]/Cu,Nb tube composite with a high critical current

• Published in: Physics of metals and metallography Vol. 115; no. 6; p. 538
• Main Authors: Krinitsina, T.P, Kuznetsova, E.I, Blinova, Yu.V, Rakov, D.N, Belotelova, Yu.N, Sudareva, S.V, Degtyarev, M.V, Romanov, E.P
• Format: Journal Article
• Language: English
• Published: Springer 01.06.2014
• Subjects: Analysis; Annealing; Superconductors

The core of a single-core Mg[B.sub.2]/Cu,Nb composite, which has been prepared by the ex-situ technique and exhibits a high critical current equal to 427 A (at 0 T and 4.2 K, [j.sub.c] ≥ [10.sup.5] A/[cm.sup.2]), has been studied using various structural methods. Two kinds of Mg[B.sub.2] crystals we...