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Combination of and doping for the strong enhancement of Jc under magnetic field in melt-textured superconductor YBaCuO
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| Abstract |
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| A combination of CeO2 and PtO2 doping has been studied in melt-processed YBa2Cu3O7-x. This study was carried out using an optimized well established MTG process. The cerium-platinum doped samples exhibit a high fishtail effect with a J(c) of 4.3 x 10(4) A/cm(2) under an applied field of 1 T. Microstructural and nanostructural studies have been performed. The 211 and BaCeO3 inclusions are a few micrometers wide and the formation of a metastable nanocrystalline phase (Y4Ba4)Cu-8-x(Ce,Pt)(x)O-20+delta related to the perovskite is detected. The 123 grains show no specific extended defect generated by the doping process. The relationship between structure and properties are discussed. | |
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English
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| Source (journal) |
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Physica: C: superconductivity. - Amsterdam |
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Amsterdam : 1996
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| ISSN |
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0921-4534
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262:3/4(1996), p. 220-226
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| ISI |
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A1996UV45000011
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