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A trapped field of > 3 T in bulk MgB2 fabricated by uniaxial hot pressing

Abstract:

A trapped field of over 3T has been measured at 17.5K in a magnetized stack of two disc-shaped bulk MgB superconductors of diameter 25mm and thickness 5.4mm. The bulk MgB samples were fabricated by uniaxial hot pressing, which is a readily scalable, industrial technique, to 91% of their maximum theoretical density. The macroscopic critical current density derived from the trapped field data using the Biot-Savart law is consistent with the measured local critical current density. From this we ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1088/0953-2048/25/11/112002

Authors


Durrell, JH More by this author
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Institution:
University of Oxford
Department:
Oxford
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Publisher:
IOP Publishing Publisher's website
Journal:
Superconductor Science and Technology Journal website
Volume:
25
Issue:
11
Pages:
112002-112002
Publication date:
2012-11-05
DOI:
EISSN:
1361-6668
ISSN:
0953-2048
URN:
uuid:378bf182-0af3-49f7-b58a-3d4d356ea433
Source identifiers:
356845
Local pid:
pubs:356845

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