High Tc YBCO superconductor deposited on biaxially textured Ni substrate
AssigneeLockheed Martin Energy Research Corporation
InventorsJohn D. Budai, David K. Christen, Amit Goyal, Qing He, Donald M. Kroeger, Dominic F. Lee, Frederick A. List, III, David P. Norton, Mariappan Paranthaman, Brian C. Sales, Eliot D. Specht
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Abstract
A superconducting article includes a biaxially-textured Ni substrate, and epitaxial buffer layers of Pd (optional), CeO.sub.2 and YSZ, and a top layer of in-plane aligned, c-axis oriented YBCO having a critical current density (J.sub.c) in the range of at least 100,000 A/cm.sup.2 at 77 K.
Claims44
A biaxially textured article comprising a biaxially textured Ni substrate having thereon an epitaxial buffer layer of CeO.sub.2.
A biaxially textured article comprising a biaxially textured Ni substrate having thereon an epitaxial layer of palladium, said epitaxial layer of palladium having thereon an epitaxial buffer layer of CeO.sub.2.
A biaxially textured article comprising a biaxially textured palladium substrate having thereon an epitaxial buffer layer of CeO.sub.2, said epitaxial buffer layer of CeO.sub.2 having thereon an epitaxial buffer layer of yttria-stabilized ZrO.sub.2.
A method of preparing a biaxially textured article comprising the steps of:
- a. providing a biaxially textured Ni substrate having a surface;
- and,
- b. depositing onto said surface, in the presence of hydrogen gas, an epitaxial buffer layer of CeO.sub.2.
A method of preparing a biaxially textured article comprising the steps of:
- a. providing a biaxially textured Ni substrate having a surface;
- b. depositing onto said surface an epitaxial buffer layer of palladium;
- and,
- c. depositing onto said epitaxial buffer layer of palladium an epitaxial buffer layer of CeO.sub.2.
A method of preparing a biaxially textured article comprising the steps of:
- a. providing a biaxially textured palladium substrate having a surface;
- and,
- b. depositing onto said surface an epitaxial buffer layer of CeO.sub.2.
Dependencies are inferred from the claim text.