[WB6] Bulk

10:15 AM - 10:45 AM JST(1:15 AM - 1:45 AM UTC)

[WB6-02-INV] Producing single grain (RE)BCO bulk superconductors via Infiltration and Growth approach: An overview

*DEVENDRA KUMAR NAMBURI^1,2, Yun-Hua Shi², Jan Plechacek³, John H Durrell², David A Cardwell² (1. UNIVERSITY OF GLASGOW (UK), 2. University of Cambridge (UK), 3. CAN SUPERCONDUCTORS, s.r.o. (Czech Republic))

Keywords:

(RE)BCO bulk superconductors,single grain superconductor,infiltration growth process

(RE)Ba₂Cu₃O_7-x ((RE)BCO, where RE = rare earth elements) superconductors have attracted significant attention due to their high critical current densities and striking magnetic field performance, making them ideal candidates for various power and magnetic applications. The first and foremost task is to fabricate these materials as single grain bulks. Melt-Growth (MG) merged as a successful processing route to achieve large single grain bulks. However, MG has its own limitations and drawbacks. In this context, Infiltration Growth (IG) process has emerged as one of the promising routes for producing high-quality (RE)BCO bulk superconductors with controlled microstructures and enhanced superconducting properties. This overview presents the fundamental principles of the IG process, highlighting its advantages over the conventional Top-Seeded Melt Growth (TSMG) method, such as improved homogeneity, reduced processing times, and better control over RE-211 particle distribution. Key developments in processing parameters, material systems, and dopant effects are discussed, alongside recent advancements in scalable fabrication, performance optimization and even reinforcemens. The review concludes with perspectives on current challenges and future directions for tailoring (RE)BCO superconductors via the IG method for practical applications.

References
1) Devendra K Namburi et al. Supercond. Sci. Technol. 29 095010, 2016
2) Devendra K Namburi et al. Supercond. Sci. Technol. 34 053002, 2021