Fabrication of Two Tesla Magnet Using Bi-2212 Ag-Sheathed Tapes

概要

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Pancake-type superconducting coils were fabricated using Ag-sheathed Bi-2212 tapes. The conventional powder-in-tube method was used where the metal composition of powders are Bi:Sr:Ca:Cu=2:2.3:0.85:2, different from the stoichiometric 2212 composition. Heat treatment was performed in the reduced oxygen partial pressure of 0.01 atm. The superconducting magnet assembled from pancake coils generated a field of 2.0 T at 4.2 K using the 1×10^<-13>Ω・m criterion. The J_c was 3.9×10^4A/cm^2.
社団法人応用物理学会の論文
1994-03-15