Flux pinning of stacking faults and dislocations in YBCO bulks

Abstract Highly Textured YBCO bulks with dense stacking faults and dislocations were prepared by powder melting process. Through comparing the magnetic measurement data and microstructure characteristics of the samples with different amount of crystal defects, we consider that the stacking faults and dislocations in PMP processed YBCO are strong flux pinning centers.