High critical current density superconducting tapes by epitaxial deposition of YBa{sub 2}Cu{sub 3}O{sub {ital x}} thick films on biaxially textured metals
- Oak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, Tennessee 37831-6116 (United States)
A method to obtain long lengths of flexible, biaxially oriented substrates with smooth, chemically compatible surfaces for epitaxial growth of high-temperature superconductors is reported. The technique uses well established, industrially scalable, thermomechanical processes to impart a strong biaxial texture to a base metal. This is followed by vapor deposition of epitaxial buffer layers (metal and/or ceramic) to yield chemically compatible surfaces. Epitaxial YBa{sub 2}Cu{sub 3}O{sub {ital x}} films grown on such substrates have critical current densities exceeding 10{sup 5} A/cm{sup 2} at 77 K in zero field and have field dependencies similar to epitaxial films on single crystal ceramic substrates. Deposited conductors made using this technique offer a potential route for the fabrication of long lengths of high-{ital J}{sub {ital c}} wire capable of carrying high currents in high magnetic fields and at elevated temperatures. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Oak Ridge National Laboratory
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 383723
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 69; ISSN 0003-6951; ISSN APPLAB
- Country of Publication:
- United States
- Language:
- English
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