Effect of grain-alignment on the levitation force of melt-processed ybco bulk superconductors

Yang Wan-Min, Zhou Lian, Feng Yong, Zhang Ping-Xiang, Wu Min-Zhi, Wu Xiao-Zu, W. Gawalek

Research output: Contribution to journalArticlepeer-review

Abstract

Single-domain YBCO bulk superconductors have been fabricated by Top Seeded Melt Slow Cooling Growth(TSSCG) process. Two typical YBCO cylinder samples with differential grain-alignment were selected for the investigation of the relationship between the grain-alignment and the levitation force under the same testing condition at liquid nitrogen temperature. It is found that the levitation force values is much different for the two samples, the levitation force of the sample with H∥c-axis is more than two times higher than that of the samples with H⊥c-axis. So it is necessary to take account of this anisotropy in practical applications. The relationship between a magnet and a superconductor can be well described with a double exponential function. All the results are discussed in details.

Original languageEnglish
Pages (from-to)533-538
Number of pages6
JournalActa Physica Sinica (overseas Edition)
Volume8
Issue number7
DOIs
StatePublished - 1999
Externally publishedYes

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