Analysis of twin boundaries using the electron backscatter diffraction (EBSD) technique

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Abstract

The twin structure of various bulk, high-Tc superconductors is analysed using the electron backscatter diffraction (EBSD) technique. The high image quality of the Kikuchi patterns recorded enables a high spatial resolution of the order of 40 nm to be achieved; thus details of the twin patterns can be measured in straightforward way. As samples, we employed both melt-textured samples and single crystals of NdBa2Cu3Oy (NdBCO) and (Nd0.33Eu0.33Gd0.33)Ba2 Cu3Oy (NEG). Both types of samples show a well-developed twin structure, where several details can be observed using the so-called crystal direction (CD) mappings, which provide orientation maps using colours close to the pole directions. These results are compared to theoretical descriptions found in the literature.

Original languageEnglish
Pages (from-to)60-64
Number of pages5
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume151
Issue number1
DOIs
Publication statusPublished - 2008 Jun 15

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Keywords

  • EBSD
  • Orientation
  • Twins
  • YBCO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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