Abstract
Long precursor filaments are prepared by dry spinning with a starting homogeneous aqueous PVA solution containing Y, Ba and Cu acetates. By controlling the spinning process and partial-melting, a high J c value of more than 10 5 A/cm 2 at 77 K and 0 T was obtained. The filament with high J c does not always have a texture well aligned to the direction of the fiber axis. The field dependence of the transport J c of the filament at 77 K is small if the grain boundary is clean.
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