Texture analysis of melt-textured YBCO superconductors

We compare the results of an X-ray based pole figure texture analysis with the local texture analysis by means of electron-backscatter diffraction (EBSD) analysis. As samples, we employ two different melt-textured YBCO samples; one fully processed and one without oxygen treatment. To enable the dire...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2003-10, Vol.392, p.601-606
Main Authors: Koblischka-Veneva, A., Koblischka, M.R., Simon, P., Ogasawara, K., Murakami, M.
Format: Article
Language:English
Subjects:
Automated mapping
Bulk high- Tc superconductors
Ceramics
EBSD
Electron-backscatter diffraction
SEM
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Summary:We compare the results of an X-ray based pole figure texture analysis with the local texture analysis by means of electron-backscatter diffraction (EBSD) analysis. As samples, we employ two different melt-textured YBCO samples; one fully processed and one without oxygen treatment. To enable the direct comparison of the two techniques, we employ the [1 0 3] pole figures. We find a clear coincidence between the results obtained by the two measurement techniques on our samples, however, the EBSD results are much more detailed, yielding the local grain orientation distribution and quantitative results of the grain or subgrain misorientation angles. Therefore, the EBSD measurements give information not accessible to the X-ray pole figure analysis. The surface preparation procedure is essential to enable the automated EBSD mapping as high image quality Kikuchi patterns are required. The polishing procedures are discussed in detail.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(03)00731-7