MIXED ANION COMPOUND IRON-BASED SUPERCONDUCTING WIRE MATERIAL AND MANUFACTURING METHOD THEREFOR

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PROBLEM TO BE SOLVED : To provide a superconducting wire material high in critical temperature and critical current density and a manufacturing method therefor. SOLUTION : The superconducting wire material has a core part containing a perovskite related mixed anion type iron-based superconductor represented by a composition formula of A2DFeAsO3-δ, where A represents one or more element selected from alkali earth metals Mg, Ca, Sr, Ba, D represents one or more element selected from transition metals Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Hf, Ta, W, Re, Os, Ir, Pt, Au, rear earths La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, an alkali earth metal Mg, a typical metal element Al, the core part charged into a metal sheath. SELECTED DRAWING : Figure 1 COPYRIGHT : (C)2018, JPO&INPIT