Journal article
Two level undercut-profile substrate for filamentary YBa2Cu3O7 coated conductors: Fast Track Communication
Department of Energy Conversion and Storage, Technical University of Denmark1
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark2
Department of Physics, Technical University of Denmark3
Quantum Physics and Information Technology, Department of Physics, Technical University of Denmark4
Electrofunctional materials, Department of Energy Conversion and Storage, Technical University of Denmark5
Slovak Academy of Sciences6
Slovak University of Technology in Bratislava7
Department of Wind Energy, Technical University of Denmark8
Wind Energy Systems, Department of Wind Energy, Technical University of Denmark9
Materials science and characterization, Department of Wind Energy, Technical University of Denmark10
Bruker Corporation11
SUBRA IVS12
...and 2 moreA novel substrate design is presented for scalable industrial production of filamentary coated conductors (CCs). The new substrate, called ‘two level undercut-profile substrate (2LUPS)’, has two levels of plateaus connected by walls with an undercut profile. The undercuts are made to produce a shading effect during subsequent deposition of layers, thereby creating gaps in the superconducting layer deposited on the curved walls between the two levels.
It is demonstrated that such 2LUPS-based CCs can be produced in a large-scale production system using standard deposition processes, with no additional post-processing. Inspection of the conductor cross-section reveals that the deposited superconducting layer is physically separated at the 2LUPS undercuts.
Filament decoupling is also seen in maps of the remanent magnetic field and confirmed by transport measurements.
| Language: | English |
|---|---|
| Publisher: | IOP Publishing |
| Year: | 2015 |
| Pages: | 072001 |
| ISSN: | 13616668 and 09532048 |
| Types: | Journal article |
| DOI: | 10.1088/0953-2048/28/7/072001 |
| ORCIDs: | Wulff, Anders Christian , Abrahamsen, Asger Bech , Mishin, Oleg V. , Thydén, Karl Tor Sune , Hansen, Jørn Otto Bindslev and Grivel, Jean-Claude |
