Investigation of microstructure and superconducting properties in the Fe-B magnetic particles doped GdBa2Cu3O7-δ/Ag2O and GdBa2Cu3O7-δ/nano-Ag superconducting bulks

被引：1

作者：

Xu, Kun ^{[1
]}

Zhou, Difan ^{[1
]}

Li, Beizhan ^{[1
]}

Hara, Shogo ^{[1
]}

Izumi, Mitsuru ^{[1
]}

机构：

[1] Tokyo Univ Marine Sci & Technol, Appl Phys Lab, Koto Ku, Tokyo 1358533, Japan

来源：

SUPERCONDUCTIVITY CENTENNIAL CONFERENCE 2011 | 2012年 / 36卷

关键词：

Superconducting bulk; critical current; trapped field; artificial pinning center; CRITICAL-CURRENT DENSITY;

D O I：

10.1016/j.phpro.2012.06.083

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Fe-B magnetic particles doped GdBa2Cu3O7-delta superconducting bulks were fabricated by using the top-seeded melt growth method. 10 wt% Ag2O or equivalent 9.31 wt% nano-Ag particles (50 nm in diameter) were added into the precursors before the sample preparation. The Fe-B doped GdBa2Cu3O7-delta/nano-Ag showed poorer mechanical properties with an obviously porous/cracked structure than the GdBa2Cu3O7-delta/Ag2O one especially at the bottom part of the bulk. In the GdBa2Cu3O7-delta/Ag2O bulk, doped Fe element is mainly wrapped or attached by Ag particles. In contrast, the Fe element prefers to substitute on the Cu sites in the GdBa2Cu3O7-delta/nano-Ag bulk due to less protection from Ag particle. The microstructure and superconducting properties were investigated in these two series samples. (C) 2012 Published by Elsevier B.V. Selection and/or peer-review under responsibility of the Guest Editors.

引用

页码：557 / 562

页数：6

共 12 条

[1] Improved magnetic flux pinning in melt processed (Y, Nd)Ba2Cu3O7-δ superconductor [J].

Babu, NH ;

Kambara, M ;

Reddy, ES ;

Shi, Y ;

Cardwell, DA .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2005, 18 (02) :S38-S42

[2] Bulk high temperature superconductors for magnet applications [J].

Campbell, AM ;

Cardwell, DA .

CRYOGENICS, 1997, 37 (10) :567-575

[3] KIM MODEL FOR MAGNETIZATION OF TYPE-II SUPERCONDUCTORS [J].

CHEN, DX ;

GOLDFARB, RB .

JOURNAL OF APPLIED PHYSICS, 1989, 66 (06) :2489-2500

[4] High trapped fields in melt-textured YBCO samples [J].

Fuchs, G ;

Krabbes, G ;

Schatzle, P ;

Stoye, P ;

Staiger, T ;

Muller, KH .

PHYSICA C, 1996, 268 (1-2) :115-120

[5] DOPING EFFECTS ON COARSENING OF Y2BACUO5 PHASE IN LIQUID [J].

IZUMI, T ;

NAKAMURA, Y ;

SHIOHARA, Y .

JOURNAL OF MATERIALS RESEARCH, 1993, 8 (06) :1240-1246

[6] Influence of the size of Gd211 starting powder on the critical current density of Gd-Ba-Cu-O bulk superconductor [J].

Nariki, S ;

Seo, SJ ;

Sakai, N ;

Murakami, M .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2000, 13 (06) :778-784

[7]

Xu K, IEEE T MAGN IN PRESS

[8] Microstructural and superconducting properties in single-domain Gd-Ba-Cu-O bulk superconductors with in situ formed Fe3O4 ferrimagnetic particles [J].

Xu, Kun ;

Tsuzuki, Keita ;

Hara, Shogo ;

Zhou, Difan ;

Zhang, Yufeng ;

Murakami, Masato ;

Nishio-Hamane, Daisuke ;

Izumi, Mitsuru .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2011, 24 (08)

[9] Effect of addition of soft magnetic alloy particles on the flux trapping in Gd123 bulk superconductors [J].

Xu, Y. ;

Tsuzuki, K. ;

Zhang, Y. ;

Kimura, Y. ;

Izumi, M. .

9TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS 09), 2010, 234

[10] Spatial variation of superconducting properties of Gd123 Bulk superconductors with magnetic particles addition [J].

Xu, Y. ;

Tsuzuki, K. ;

Hara, S. ;

Zhang, Y. ;

Kimura, Y. ;

Izumi, M. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2010, 470 (20) :1219-1223

← 1 2 →