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Title

Grain boundaries and pinning in bulk MgB2

AuthorsMikheenko, P.; Martínez, Elena CSIC
Issue DateSep-2007
PublisherInstitute of Physics Publishing
CitationSuperconductor Science and Technology 20(9): S264-S270 (2007)
AbstractWe report the grain size dependence of critical current and grain boundary pinning in bulk MgB2. By combining polarized optical microscopy and electron backscatter diffraction, we obtain evidence of special grain boundaries with a high density of dislocations that are able to provide high critical current in MgB2 polycrystals. We argue that reduction of grain size to the nanoscale level is sufficient to provide the critical current densities required for large-scale applications at the boiling temperature of liquid hydrogen.
Description7 pages, 7 figures, 1 table.-- et al.
Publisher version (URL)http://dx.doi.org/10.1088/0953-2048/20/9/S22
URIhttp://hdl.handle.net/10261/19253
DOI10.1088/0953-2048/20/9/S22
ISSN0953-2048
Appears in Collections:(ICMA) Artículos

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