Author(s)

Miao Wang^1*, Xu Yang², Xuan Wang³, Xiaomei Wang¹, Ming Zhang¹, Dapeng Hao¹

¹School of Science, Xi’an Aeronautical University, Xi’an, China.
²School of Electronic Engineering, Xi’an Aeronautical University, Xi’an, China.
³School of Material Engineering, Xi’an Aeronautical University, Xi’an, China.

The top-seeded infiltration and growth process (TSIG) is very effective method for the preparation of YBa₂Cu₃O_7-x (YBCO) bulk superconductors. In order to improve the levitation force of the samples, a series of single domain YBCO bulk superconductors with different ratios of nanoscale Y₂Ba₄CuBiO_y (YBi2411) inclusions in the solid phase pellet is successfully fabricated by the TSIG technique on the basis of previous research. In the present work, the results of YBCO bulk superconductors with YBi2411 and CeO₂ (1 wt%) codoping system indicate that, the optimum doping of YBi2411 is 2 wt%, the size of Y211 particles is reduced compared with the samples without CeO₂ doping; the largest levitation force is about 15 N obtained in the samples with optimum YBi2411, which is about two times higher than that of the sample without CeO₂ doping. The results are very helpful for the fabrication of high quality single domain YBCO bulk superconductors.

Nanoparticles, YBCO Bulk Superconductor, TSIG Process

Wang, M. , Yang, X. , Wang, X. , Wang, X. , Zhang, M. and Hao, D. (2018) Comparison of Y₂Ba₄CuBiOy Nanoparticles with CeO₂ Doping on the Levitation Force of Single Domain YBCO Bulk Superconductor by TSIG Process. Journal of Materials Science and Chemical Engineering, 6, 90-98. doi: 10.4236/msce.2018.61010.