Conveners
M2Or1B: Latest Development in Flux Pinning & Critical Current - REBCO I
- Satoshi Awaji (Tohoku University)
- Goran Majkic (University of Houston)
For superconducting magnets and other applications, enhancing the critical current density (Jc) is required. There are several possible approaches for enhancing Jc in REBa2Cu3Oy coated conductors (CCs); one is by introducing and tailoring pinning centers to immobilize vortices. Another is by enhancing the thermodynamic critical field...
At liquid He temperatures and low magnetic fields, ReBCO films and coated conductors (CC) can have extremely large critical current densities ($J_c$), in excess to 100 MA/cm$^2$, the highest among known superconductors, making CCs very attractive for power applications. However, $J_c$ tends to decrease sharply as either $T$ or $H$ increases, thus additional pinning centers must be introduced...
We present progress in development and understanding of the in-field performance of REBCO conductor with Artificial Pinning Centers (APCs) in the form of BMO nanorods (M = Zr, Hf, Sn, etc.). First, we present TEM findings on in-plane strain accommodation mechanisms between BMO and REBCO matrix, where the interfaces have been found to never be fully coherent, and that the degree of...
