Superconductive composite materials
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United States of America Patent
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Jul 6, 1999
Grant Date -
N/A
app pub date -
Mar 19, 1997
filing date -
Mar 22, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A composite material having a plurality of sections integrated into a unitary structure and each including a bulk of a superconductive metal oxide of RE--Ba--Cu--O wherein RE represents a rare earth element, the bulk of each of the sections having pinning centers and capable of trapping a magnetic field. A first one of the sections has a superconductive current density different from that of a second one of the sections. The composite material may be produced by assembling preformed respective sections into a unitary structure or by immersing one of the sections in a solution to grow crystal of Y--Ba--Cu--O superconductive on that section, followed by trimming.
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