Abstract
A low-cost, non-vacuum, solution precursor route has been developed to produce epitaxial Gd2O3 and Eu2O3 buffer layers and YBa2Cu3O7-δ (YBCO) superconductors on biaxially textured metal substrates. On sol-gel Eu2O3 seed layers with sputtered YSZ and CeO2 top layers, YBCO film with a Jc of over 1 MA/cm2 at 77 K was obtained. On all solution buffer layers (CeO2/Eu2O3/Ni), YBCO film with a Jc of 200,000 A/cm2 at 77 K was grown using pulsed laser deposition (PLD). Meter lengths of epitaxial and crack-free Gd2O3 buffer layers were fabricated on cube textured Ni-W (3 at.%) substrates for the first time. High quality YBCO films were deposited on Rolling-Assisted Biaxially Textured Substrates (RABiTS) using a trifluoroacetate (TFA) precursor approach. The precursors were either spin-coated or dip-coated and decomposed in a newly developed fast 3-hour burn-out step followed by post-annealing. In a stationary burn-out route, we have produced 40 cm long crack-free YBCO TFA precursors on RABiTS. On short segments, YBCO films with a Jc of over 500,000 A/cm2 at 77 K were grown on all PLD buffered-Ni substrates (CeO2/YSZ/CeO2/Ni).
| Original language | English |
|---|---|
| Pages (from-to) | 3146-3149 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 11 |
| Issue number | 1 III |
| DOIs | |
| State | Published - Mar 2001 |
| Event | 2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: Sep 17 2000 → Sep 22 2000 |
Funding
Manuscript received September 18,2000. This work was supported by the U.S. Department of Energy, Division of Materials Sciences, Office of Science, office of Power Technologies-Superconductivity Program, Office of Energy Efficiency and Renewable Energy. The research was performed at the Oak Ridge National Laboratory, managed by UT.-Battelle, LLC for the USDOE under contract DE-AC05400R22725.
Keywords
- REO buffer layers
- Solution precursors
- Textured metal substrates
- YBCO coated conductors
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