[10p-A31-1~16] 11.2 Wires, Bulks, Fabrication process, Power applications

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[10p-A31-14] Effect of Non-Superconducting Nanoparticle Additions on Microstructure and Flux Pinning Properties of SDMG-Processed REBCO Bulks

〇Manabu Tokushige¹, Ryo Asako¹, Naoya Matsunaga¹, Masafumi Kunii¹, Jun-ichi Shimoyama¹, Takanori Motoki² (1.Aoyama Gakuin Univ., 2.AIST)

Keywords:

REBCO bulk superconductor,Nanoparticle,Pinning center

Enhancement of the critical current density in REBCO superconductors requires the introduction of effective pinning centers and the refinement and homogeneous dispersion of RE211 particles. In this study, REBCO bulk superconductors containing zirconium oxide-based non-superconducting nanoparticles were fabricated by a melt-growth process. BaZrO3 and CaZrO3 nanoparticles were synthesized and introduced into the REBCO bulks. The effects of nanoparticle additions on the refinement and distribution of RE211 particles were investigated, and the flux pinning effect was evaluated through correlations with the superconducting properties.