Critical Current Density of the YBa2Cu3O7-δ Superconductor as Affected by Microstructuralxontrol
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ABSTRACTThe recent discovery of the YBa2Cu3O7-δ type high Tc superconductors stimulated worldwide R&D interest in this field. However, the relatively low critical current density (Jc) in the polycrystalline, bulk superconductors (as well as its significant deterioration in weak magnetic fields) has been a major roadblock to the rapid technical advancement toward applications. In this paper, we investigated the effect of processing and microstructural control on Jc of the superconductor. Improved Jc values of -3100 A/cm2 at 77K with somewhat reduced field dependence have been obtained through appropriate microstructural modifications.
2009 ◽
Vol 22
(2)
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pp. 025011
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1990 ◽
Vol 169
(1-2)
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pp. 107-111
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2004 ◽
Vol 17
(8)
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pp. 1069-1071
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1979 ◽
Vol 15
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pp. 687-688
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1991 ◽
Vol 30
(Part 1, No. 11A)
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pp. 2747-2750
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