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Interfacial reactions and oxygen distribution in MgB2 wires in Fe, stainless steel and Nb sheaths

Abstract:

Superconducting MgB2 wires have been made by powder-in-tube (PIT) processing of commercial MgB2 powder in Fe, stainless steel and composite metallic sheaths using annealing temperatures from 850 to 1100°C. Technologically interesting Jc values around 106 A cm-2 in the self-field at 4.2 K have been achieved. However, as the annealing temperature is increased, substantial chemical reactions have been observed at the MgB2/sheath interface. We report on a detailed study using electron probe micro...

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Publication status:
Published

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Publisher copy:
10.1088/0953-2048/17/3/030

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Goodsir, L More by this author
Salter, CJ More by this author
Journal:
SUPERCONDUCTOR SCIENCE and TECHNOLOGY
Volume:
17
Issue:
3
Pages:
479-484
Publication date:
2004-03-05
DOI:
EISSN:
1361-6668
ISSN:
0953-2048
URN:
uuid:f71b9cf8-1363-435b-8b01-55a83a79138e
Source identifiers:
15637
Local pid:
pubs:15637
Language:
English

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