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Titolo:
PREPARATION OF AG-DOPED NDBA2CU3O7-DELTA SUPERCONDUCTORS BY A SOL-GELMETHOD
Autore:
MURAKAMI G; MASUDA Y; JIN JS; TANABE K; FUJIHARA S; KIMURA T;
Indirizzi:
KEIO UNIV,FAC SCI & TECHNOL,DEPT APPL CHEM,KOHOKU KU,3-14-1 HIYOSHI YOKOHAMA KANAGAWA 223852 JAPAN INT SUPERCONDUCT TECHNOL CTR,SUPERCONDUCT RES LAB,KOTO KU TOKYO 1350062 JAPAN KOBE STEEL LTD,ADV PROD DEV GRP,NISHI KU KOBE HYOGO 6512271 JAPAN KYOTO UNIV,CHEM RES INST UJI KYOTO 6110011 JAPAN
Titolo Testata:
Nippon Seramikkusu Kyokai gakujutsu ronbunshi
fascicolo: 4, volume: 106, anno: 1998,
pagine: 377 - 380
SICI:
0914-5400(1998)106:4<377:POANSB>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
BA-CU-O; THICK-FILMS; OXYGEN; SILVER;
Keywords:
NDBA2CU3O7-DELTA SUPERCONDUCTOR; SOL-GEL METHOD; AG ADDITION; OXYGEN DIFFUSION; INCONGRUENT MELTING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
G. Murakami et al., "PREPARATION OF AG-DOPED NDBA2CU3O7-DELTA SUPERCONDUCTORS BY A SOL-GELMETHOD", Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 106(4), 1998, pp. 377-380

Abstract

Ag-doped NdBa2Cu3O7-delta superconducting ceramics were prepared by asol-gel method. Ag was distributed uniformly in the sintered samples. The incongruent melting temperature of the NdBa2Cu3O7-delta samples prepared by our sol-gel method was lower than that of the samples prepared by the conventional powder method. The incongruent melting temperature was further decreased by doping with Bg. The authors consider that the incongruent melting is induced by reaction between NdBa2Cu3O7-delta and Ag. The superconducting transition width Delta T(Delta = T-c(onset) - T-c(end)) was decreased by doping with Ag. The electrical resistivity of a 10 mass% Ag-doped sample dropped sharply from 93 K (T-c(onset)) and showed zero resistivity at 86 K T-c(end)).

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Documento generato il 01/04/20 alle ore 10:34:35