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Method for fabrication of high temperature superconductors

United States Patent Application

*** PATENT GRANTED ***
20050181953
7,012,275
A1
View the Complete Application at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A layered article of manufacture and a method of manufacturing same is disclosed. A substrate has a biaxially textured MgO crystalline layer having the c-axes thereof inclined with respect to the plane of the substrate deposited thereon. A layer of one or more of YSZ or Y.sub.2O.sub.3 and then a layer of CeO.sub.2 is deposited on the MgO. A crystalline superconductor layer with the c-axes thereof normal to the plane of the substrate is deposited on the CeO.sub.2 layer. Deposition of the MgO layer on the substrate is by the inclined substrate deposition method developed at Argonne National Laboratory. Preferably, the MgO has the c-axes thereof inclined with respect to the normal to the substrate in the range of from about 10.degree. to about 40.degree. and YBCO superconductors are used.
Balachandran, Uthamalingam (Hinsdale, IL), Ma, Beihai (Naperville, IL), Miller, Dean (Darien, IL)
The University of Chicago (Chicago IL)
10/ 780,451
February 17, 2004
[0001] This work is supported by the U.S. Department of Energy (DOE), Energy Efficiency and Renewable Energy, as part of a DOE program to develop electric power technology, under Contract W-31-109-Eng-38.