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Complete flux jumping in nano-structured MgB2 superconductors prepared by mechanical alloying

Abstract:

High density nano-crystalline MgB2 bulk superconductors with induced pinning centres were prepared from elemental precursors by a sequence of ball milling, heat treatment, and final pressing. The XRD results revealed the main phase was MgB2 with a minor component of MgO. The magnetic moment versus temperature indicated that the transition temperature of MgB2 samples was around 34 K, which is less than the typical transition temperature of commercial powders and also the transition temperature...

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Publication status:
Published

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Journal:
JOURNAL OF ALLOYS AND COMPOUNDS
Volume:
480
Issue:
2
Pages:
203-207
Publication date:
2009-07-08
DOI:
ISSN:
0925-8388
URN:
uuid:bc41b070-1c40-4d76-a4f5-9f1402bbf490
Source identifiers:
28900
Local pid:
pubs:28900

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