Effects of 211 inclusions on zone melt-textured (RE/Y)-Ba-Cu-O superconductors

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The directionally melt grown (Sm/Y)(1.8)Ba2.4Cu3.4Oy high-T-c composite superconductors with/without CeO2 addition were systematically investigated by zone melt growth process in air. The sizes of (Sm/Y)(2)BaCuO5 inclusions of melt-textured (Sm/Y)(1.8)Ba2.4Cu3.4Oy with CeO2 addition were remarkably reduced and uniformly distributed within the (Sm/Y)Ba2Cu3Oy matrix. Both samples, with/without CeO2 addition, showed an onset T-c > 92 K and sharp superconducting transition. The critical current density J(c) values of the sample without CeO2 addition were lower (J(c) = 3.3 X 10(4) A/cm(2) in 0 T at 77 K) than those (J(c) = 4.7 X 10(4) A/cm(2) in 0 T at 77 K) of (Sm/Y)(1.8)Ba2.4Cu3.4Oy with CeO2 addition. (C) 2000 Elsevier Science B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2000-08
Language
English
Article Type
Article; Proceedings Paper
Keywords

CRITICAL-CURRENT DENSITY; BA-CU-O; SINGLE-CRYSTALS; PTO2 ADDITIONS; GROWTH; CEO2; JC; YBA2CU3O7-DELTA; MICROSTRUCTURE; Y2BACUO5

Citation

PHYSICA C, v.338, no.1-2, pp.110 - 114

ISSN
0921-4534
DOI
10.1016/S0921-4534(00)00211-2
URI
http://hdl.handle.net/10203/69394
Appears in Collection
MS-Journal Papers(저널논문)
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