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Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center

This paper reports on the flux pinning capability of micron size Fe3O4 in Bi-Sr-Ca-Cu-O superconductor tapes. Ag sheathed high temperature superconductor tapes with starting compositions (Bi,Pb)2Sr2Ca2Cu3O10 (2223) and(Bi,Pb)2Sr2Ca2Cu3O10-(Fe3O4)0.01 were fabricated using the powder in tube method.T...

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Main Authors: Abd Shukor, Roslan, Awang Kechik, Mohd Mustafa, Shaari, Abdul Halim
Format: Article
Language:English
English
Published: Institute of Physics 2008
Online Access:http://psasir.upm.edu.my/id/eprint/7003/1/Transport%20critical%20current%20density%20of%20Bi.pdf
http://psasir.upm.edu.my/id/eprint/7003/
http://dx.doi.org/10.1088/1742-6596/97/1/012050
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spelling my.upm.eprints.70032015-12-07T04:15:55Z http://psasir.upm.edu.my/id/eprint/7003/ Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center Abd Shukor, Roslan Awang Kechik, Mohd Mustafa Shaari, Abdul Halim This paper reports on the flux pinning capability of micron size Fe3O4 in Bi-Sr-Ca-Cu-O superconductor tapes. Ag sheathed high temperature superconductor tapes with starting compositions (Bi,Pb)2Sr2Ca2Cu3O10 (2223) and(Bi,Pb)2Sr2Ca2Cu3O10-(Fe3O4)0.01 were fabricated using the powder in tube method.The Bi-Sr-Ca-Cu-O powders were prepared by using the co-precipitation technique.The effects of Fe3O4 addition on the microstructure, phase formation, critical temperature and transport critical current density, Jc were studied. The Jc value of the Fe3O4 added tapes is higher (6,090 A/cm2 at 77 K and 24,500 A/cm2 at 30 K, in zero field) than the non-added tapes (3,730 A/cm2 at 77 K and 13,3180 A/cm2 at 30 K, in zero field). A sudden decrease of Jc in low magnetic fields (B < 0.12 T) when applied parallel (B||) and perpendicular (B^) to the tapes surface was observed. The destruction of weak links played an important role in the early Jc suppression. The rate of decrease of Jc was observed to decrease when the magnetic field was increased further. Improvement in the flux pinning was observed in (Bi, Pb)2Sr2Ca2Cu3O10-Fe3O4)0.01 tapes. This study shows that magnetic particles such as Fe3O4 can act as effective pinning centers leading to the enhancement of Jc in the system. Institute of Physics 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7003/1/Transport%20critical%20current%20density%20of%20Bi.pdf Abd Shukor, Roslan and Awang Kechik, Mohd Mustafa and Shaari, Abdul Halim (2008) Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center. Journal of Physics: Conference Series, 97 (1). ISSN 1742-6588 http://dx.doi.org/10.1088/1742-6596/97/1/012050 10.1088/1742-6596/97/1/012050 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description This paper reports on the flux pinning capability of micron size Fe3O4 in Bi-Sr-Ca-Cu-O superconductor tapes. Ag sheathed high temperature superconductor tapes with starting compositions (Bi,Pb)2Sr2Ca2Cu3O10 (2223) and(Bi,Pb)2Sr2Ca2Cu3O10-(Fe3O4)0.01 were fabricated using the powder in tube method.The Bi-Sr-Ca-Cu-O powders were prepared by using the co-precipitation technique.The effects of Fe3O4 addition on the microstructure, phase formation, critical temperature and transport critical current density, Jc were studied. The Jc value of the Fe3O4 added tapes is higher (6,090 A/cm2 at 77 K and 24,500 A/cm2 at 30 K, in zero field) than the non-added tapes (3,730 A/cm2 at 77 K and 13,3180 A/cm2 at 30 K, in zero field). A sudden decrease of Jc in low magnetic fields (B < 0.12 T) when applied parallel (B||) and perpendicular (B^) to the tapes surface was observed. The destruction of weak links played an important role in the early Jc suppression. The rate of decrease of Jc was observed to decrease when the magnetic field was increased further. Improvement in the flux pinning was observed in (Bi, Pb)2Sr2Ca2Cu3O10-Fe3O4)0.01 tapes. This study shows that magnetic particles such as Fe3O4 can act as effective pinning centers leading to the enhancement of Jc in the system.
format Article
author Abd Shukor, Roslan
Awang Kechik, Mohd Mustafa
Shaari, Abdul Halim
spellingShingle Abd Shukor, Roslan
Awang Kechik, Mohd Mustafa
Shaari, Abdul Halim
Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
author_facet Abd Shukor, Roslan
Awang Kechik, Mohd Mustafa
Shaari, Abdul Halim
author_sort Abd Shukor, Roslan
title Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
title_short Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
title_full Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
title_fullStr Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
title_full_unstemmed Transport critical current density of Bi-Sr-Ca-Cu-O/Ag superconductor tapes with addition of Fe3O4 as flux pinning center
title_sort transport critical current density of bi-sr-ca-cu-o/ag superconductor tapes with addition of fe3o4 as flux pinning center
publisher Institute of Physics
publishDate 2008
url http://psasir.upm.edu.my/id/eprint/7003/1/Transport%20critical%20current%20density%20of%20Bi.pdf
http://psasir.upm.edu.my/id/eprint/7003/
http://dx.doi.org/10.1088/1742-6596/97/1/012050
_version_ 1643823593852764160
score 13.211869

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