Title :
Annealing Effect on Microstructure and Superconducting Properties of the

-based Laves Phase Superconducting Wire Synthesized by a RHQ Process
Author :
Hishinuma, Y. ; Kikuchi, A. ; Iijima, Y. ; Yoshida, Y. ; Takeuchi, T. ; Inoue, K. ; Nishimura, A.
Author_Institution :
Nat. Inst. for Fusion Sci.
fDate :
6/1/2006 12:00:00 AM
Abstract :
We have studied about annealing effect on V-based Laves phase compound multifilamentary superconducting wire using the Rapidly Heating and Quenching (RHQ) process in order to improve superconducting property. We found that the reaction layer within 10 microns was formed between powder mixture filament and V matrix after the RHQ process. The transport Jc values of samples post-annealed at 600degC for 10 hours were increased remarkably compared with as-quenched samples, and then Hc2 value calculated by Kramer´s formula was increased from 14 T to 16 T by additional annealing. In this paper, the post-annealing condition effect on both microstructure and Jc-B property of V-based Laves phase compound superconductor made through RHQ process was investigated
Keywords :
annealing; crystal microstructure; fusion reactor design; fusion reactor materials; hafnium alloys; multifilamentary superconductors; quenching (thermal); vanadium alloys; zirconium alloys; 10 hours; 600 C; ITER design; Kramer formula; RHQ process; V-based Laves phase compound; V2HfZr; as-quenched samples; microstructure; multifilamentary superconducting wire; post-annealing effect; powder mixture filament; quenching process; rapid heating process; reaction layer; superconducting properties; Annealing; Fusion reactor design; Fusion reactors; Magnetic properties; Microstructure; Multifilamentary superconductors; Neutrons; Superconducting filaments and wires; Superconducting magnets; Superconducting materials; Microstructure; RHQ process; V-based Laves phase compound; multifilamentary wire; post-annealing; superconducting property;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.870778