Characterisation of nano-grains in MgB<inf>2</inf> superconductors by transmission Kikuchi diffraction

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Journal Article
Scripta Materialia, 2015, 101 pp. 36 - 39
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© 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. We report the first application of the emerging transmission Kikuchi diffraction technique in the scanning electron microscope to investigate nano-grain structures in polycrystalline MgB2 superconductors. Two sintering conditions were considered, and the resulting differences in superconducting properties are correlated to differences in grain structure. A brief comparison to X-ray diffraction results is presented and discussed. This work focusses more on the application of this technique to reveal grain structure, rather than on the detailed differences between the two sintering temperatures.
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