skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High temperature superconductors having planar magnetic flux pinning centers and methods for making the same

Patent ·
OSTI ID:1531675
; ; ;

Superconductor wires or layers having improved properties and methods for making the same are described. The superconducting layer includes a rare earth element-alkaline earth element-transition metal oxide having an average stacking fault density that is greater than about 0.01 nm−1, wherein two or more rare earth cations form the rare earth element. To form the superconductor layer of the present invention, a layer having a rare earth element-alkaline earth element-transition metal oxide substantially in a first crystal structure can be provided to a substrate where two or more rare earth cations form the rare earth element. The layer can then be heated at a temperature that is greater than 550° C. under oxidizing conditions to form a high-temperature superconducting layer substantially in a second crystal structure.

Research Organization:
American Superconductor Corp., Devens, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
4000026954
Assignee:
American Superconductor Corporation (Devens, MA)
Patent Number(s):
7,902,120
Application Number:
11/880,533
OSTI ID:
1531675
Resource Relation:
Patent File Date: 2007-07-23
Country of Publication:
United States
Language:
English

References (21)

Preparation of highly textured oxide superconducting films from MOD precursor solutions patent July 1993
Superconductor methods and reactors patent September 2004
High temperature superconducting wires and coils patent-application May 2007
Low vacuum vapor process for producing superconductor articles with epitaxial layers patent February 2000
Multi-layer superconductor having buffer layer with oriented termination plane patent March 2003
Architecture for high temperature superconductor wire patent-application April 2006
Low ac loss filamentary coated superconductors patent-application February 2006
Dropwise deposition of a patterned oxide superconductor patent-application February 2006
Oxide films with nanodot flux pinning centers patent-application July 2005
High critical current superconducting tapes patent September 2003
Thick superconductor films with improved performance patent-application May 2006
Low vacuum vapor process for producing epitaxial layers patent February 2000
Oxide bronze compositions and textured articles manufactured in accordance therewith patent August 2002
Thin films having rock-salt-like structure deposited on amorphous surfaces patent February 2001
Enhancement of JC in oxide superconductors patent May 2003
Multi-layer articles and methods of making same patent December 2005
Fabrication of sealed high temperature superconductor wires patent-application August 2007
High temperature superconducting composite conductors patent April 2004
Thick film high temperature superconducting device supporting high critical currents and method for fabricating same patent-application February 2005
Stacked filamentary coated superconductors patent-application April 2006
Superconductor layer and method of manufacturing the same patent-application September 2004

Similar Records

Related Subjects