[22p-A302-1~12] 11.1 Fundamental properties

[22p-A302-8] Effects of post-annealing for REBCO melt-textured bulks on their field trapping properties

〇Takanori Motoki¹, Masaya Miwa¹, Mirei Semba¹, Riho Kondo¹, Shin-ichi Nakamura², Jun-ichi Shimoyama¹ (1.Aoyama Gakuin Univ., 2.TEP)

Keywords:REBCO, melt-textured bulk, Single-Direction Melt Growth

We have previously developed and reported on the Single-Direction Melt Growth (SDMG) method, which enables the fabrication of REBCO melt-textured bulks entirely consisting of a single grain growth region with high reproducibility. Post-annealing of the bulk is considered to be effective in suppressing RE/Ba substitution and accelerating oxygen diffusion. We will report here the significant improvement of field trapping properties of the SDMG bulks through reductive post-annealing.