Magnetic levitation force and trapped field properties of multiseeded YBCO with triangular arrangement of seeds


Abdioğlu M., Güner S. B. , Öztürk K. , Yang C., Chen I., Çelik Ş.

International Journal Of Applied Ceramic Technology, pp.1-8, 2021 (Journal Indexed in SCI)

  • Publication Type: Article / Article
  • Publication Date: 2021
  • Doi Number: 10.1111/ijac.13884
  • Title of Journal : International Journal Of Applied Ceramic Technology
  • Page Numbers: pp.1-8

Abstract

Although there are studies in literature using different number of seeds with

different arrangements, especially line and rectangular, it is seen that there is no

detailed study handling the levitation force together with trapped field properties

of triangular arrangement of seed in YBCO. Therefore, to further investigate

the magnetic properties of seeded YBCO superconductors, we have fabricated

cylindrical YBCO (YBa2Cu3O7) superconductors with triangular arrangement

of the seeds with different seed distances. Maximum levitation force values

were obtained as 39.4 N and 57.1 N, while the maximum guidance force values

were obtained as −4.6 N, and −8.7 N, respectively, with single-seeded and

triangular-seeded samples with seed distance of 14 mm. It was determined that

the trapped field, levitation force, and guidance force firstly decreased from the

single-seeded sample to the triangular-seeded sample with small seed distance

and then increased with increasing seed distance. Increased field trapping and

levitation force performances in the triangular-seeded samples with suitable

seed distance indicate that the triangular arrangement of seeds is an eligible

method to produce larger dimension YBCO samples with bigger shielding

current radius and bigger averaged trapped field values.