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Titolo:
Effect of microstructure on the superconducting properties of Gd-Ba-Cu-O bulk fabricated in air
Autore:
Nariki, S; Hinai, H; Sakai, N; Murakami, M; Otsuka, M;
Indirizzi:
ISTEC, Superconduct Res Lab, Minato Ku, Tokyo 1050023, Japan ISTEC TokyoJapan 1050023 nduct Res Lab, Minato Ku, Tokyo 1050023, Japan Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan Shibaura Inst Technol Tokyo Japan 1088548 inato Ku, Tokyo 1088548, Japan
Titolo Testata:
PHYSICA C
, volume: 357, anno: 2001,
parte:, 1
pagine: 817 - 820
SICI:
0921-4534(200108)357:<817:EOMOTS>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Keywords:
melt processing; critical temperature; critical current density; Gd-Ba-Cu-O;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Nariki, S ISTEC, Superconduct Res Lab, Minato Ku, 1-16-25 Shibaura, Tokyo 1050023, Japan ISTEC 1-16-25 Shibaura Tokyo Japan 1050023 Tokyo 1050023, Japan
Citazione:
S. Nariki et al., "Effect of microstructure on the superconducting properties of Gd-Ba-Cu-O bulk fabricated in air", PHYSICA C, 357, 2001, pp. 817-820

Abstract

Bulk Gd-Ba-Cu-O superconductors were melt processed in air. The Gd2BaCuO5 (Gd211) particles dispersed in the melt-textured bulk could be refined by employing fine Gd211 starting powders. Since T-c of the bulk samples was lowered with decreasing the size of Gd211 particle, J(c) was not improved. However, we found that a depression of T-c was prevented by Ag addition, leading to higher J(c) values. The J(c) of Gd-Ba-Cu-O/Ag with Gd211 particles about 0.7 mum in size exhibited 60 000 A/cm(2) at 77 K and self-field. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 07/07/20 alle ore 22:31:56