Enhanced Flux-Pinning in Dy-Doped, MOD YBCO Films on RABiTS
- ORNL
- American Superconductor Corporation, Westborough, MA
Significant enhancements in flux-pinning were obtained for Dy-doped, YBCO films via a metal-organic deposition (MOD) process on rolling-assisted biaxially textured substrates (RABiTS). It has been reported previously that incorporation of excess rare-earth ions during the MOD process, results in improvement of Jc for H//c, however, a decrease in Jc for H//ab is observed. We report here that by altering the processing conditions the reduction in the magnitude of the current peak for H//ab can be minimized while significantly enhancing the random pinning at all field orientations. The result is a YBCO film with significantly reduced anisotropy compared to the typical YBCO films prepared by the MOD process. This is accomplished by incorporating both a high density of stacking faults and (Dy, Y)2O3 nanoparticles which result in the strong pinning for H//ab and a broad pinning peak for H//c respectively.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- OE USDOE - Office of Electric Transmission and Distribution
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 931833
- Resource Relation:
- Conference: 2006 Applied Superconductivity Conference, Seattle, WA, USA, 20060828, 20060901
- Country of Publication:
- United States
- Language:
- English
Similar Records
High critical current YBCO films prepared by an MOD process on RABiTS templates.
Development of Solution Buffer Layers for RABiTS Based YBCO Coated Conductors