RARE EARTH ELEMENT OXIDE SUPERCONDUCTIVE WIRE MATERIAL AND METHOD OF PRODUCING THE SAME
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United States of America Patent
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Issued Date -
May 5, 2011
app pub date -
May 11, 2010
filing date -
Oct 29, 2009
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Abandoned
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Abstract
The present invention relates to a rare earth element oxide superconductive wire material improved in orientation by forming the bed layer by the MOD method. In the superconductive wire material (10) produced by forming a MOD-CZO layer (2), an IBS-GZO (3), an IBAD-MgO layer (4), a LMO layer (5), a PLD-CeO.sub.2 layer (6) and a PLD-GdBCO superconductive layer (8) in this order on an electropolished substrate (1) in an oxygen atmosphere, the CeO.sub.2 layer has a value of .DELTA..phi.=4.2 degrees, which is almost the same as in the case of using a mechanically polished substrate, and the GdBCO super conductive layer has a value of Ic=243 A (Jc=up to 5 MA/cm.sup.2), which is almost the same as in the case of using a mechanically polished substrate.
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