Presentation Information
[24p-12P-8]Improvement of magnet array for magnetic alignment to fabricate highly oriented RE123
〇Shintaro Adachi1, Walid Bin Ali1, Fumiko Kimura1, Shigeru Horii1 (1.KUAS)
Keywords:
magnetic alignment,cuprate High-Tc superconductor,DyBa2Cu3Oy (Dy123)
Previously, achieving biaxial magnetic alignment of various RE123 materials required the use of a superconducting magnet [Horii et al., SuST 29, 125007 (2016).]. However, the application of huge and costly superconducting magnets imposes limitations. Recently, our group developed a novel device that can generate a linear drive type of modulated rotating magnetic field (LDT-MRF) using a permanent magnet array [Horii et al., J. Cer. Soc. Jpn. 126, 885 (2018).]. By using only permanent magnets as the magnetic field generation source, this magnetic alignment device is compact and has low operational costs. To date, this LDT-MRF equipment had achieved a static magnetic field of 0.9 T and a rotating magnetic field of 0.8 T. However, a challenge emerged last year when we observed that the MRF uniformity perpendicular to the reciprocating motion of the magnet array did not reach the cm scale (it was a few mm) [Ali et al., JAP 134, 163901 (2023).]. To overcome this problem, we have developed a new magnet array designed. In this presentation, we will report that our new magnet arrays can fabricate highly oriented anisotropic materials over the cm scale.