Critical current density of filamentary Nd123 superconductor by solution spinning method

We have studied the fabrication of filamentary Nd123 superconductor with hi gh superconducting properties. The filamentary Nd123 precursor was prepared by the solution spinning method, through a homogeneous aqueous solution co ntaining mixed acetates of Nd, Ba, Cu, poly (vinyl alcohol) and organic aci ds. The filamentary sample was partially melted at 990 OC in flowing 0.1%O- 2+Ar and oxygenated under various conditions. The transport critical curren t density (J(c)) for the samples was examined in magnetic fields up to 9.5 T at 77 K. The highest J(c) value of 3.5x10(4) A/cm(2) at 77 K and 0 T and more than 10(4) A/cm2 at 77 K and at 2 T was achieved for the filamentary N d1.18Ba2.12Cu3.09Ox superconductor by controlling the oxygenation condition s.