Position-dependent texture analysis of melt-textured YBCO by means of electron backscatter diffraction

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Abstract

The texture and phase distribution of melt-textured YBa2Cu 3Ox (YBCO) was studied by means of automated electron backscatter diffraction (EBSD) analysis as a function of the position in the bulk pellet of 4 cm diameter. A total of five samples was cut from the pellet; four samples from the surface of the bulk with different distances to the seed crystal, and one cut in vertical direction in the middle of the pellet. The melt-textured YBCO samples require a two-phase analysis to be performed, so a high surface quality is necessary to enable an automated EBSD scan. Good quality Kikuchi patterns are obtained from both the 1 2 3 and 2 1 1 phases. We found an inhomogeneous distribution of the 2 1 1 particles. Whereas the samples cut from the surface contain a large amount of 211 particles, in the samples of the vertical direction only traces of 2 1 1 particles are found. Furthermore, we measured the misorientation angle distribution of all samples. The data are presented in form of phase mappings, misorientation distribution functions and pole figures.

Original languageEnglish
Pages (from-to)607-612
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

Fingerprint

Electron diffraction
textures
Textures
diffraction
pellets
Surface properties
Distribution functions
Poles
electrons
misalignment
Crystals
Direction compound
seeds
poles
distribution functions
crystals

Keywords

  • Automated mapping
  • Bulk high-T superconductors
  • Ceramics
  • EBSD
  • Electron backscatter diffraction
  • SEM

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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title = "Position-dependent texture analysis of melt-textured YBCO by means of electron backscatter diffraction",
abstract = "The texture and phase distribution of melt-textured YBa2Cu 3Ox (YBCO) was studied by means of automated electron backscatter diffraction (EBSD) analysis as a function of the position in the bulk pellet of 4 cm diameter. A total of five samples was cut from the pellet; four samples from the surface of the bulk with different distances to the seed crystal, and one cut in vertical direction in the middle of the pellet. The melt-textured YBCO samples require a two-phase analysis to be performed, so a high surface quality is necessary to enable an automated EBSD scan. Good quality Kikuchi patterns are obtained from both the 1 2 3 and 2 1 1 phases. We found an inhomogeneous distribution of the 2 1 1 particles. Whereas the samples cut from the surface contain a large amount of 211 particles, in the samples of the vertical direction only traces of 2 1 1 particles are found. Furthermore, we measured the misorientation angle distribution of all samples. The data are presented in form of phase mappings, misorientation distribution functions and pole figures.",
keywords = "Automated mapping, Bulk high-T superconductors, Ceramics, EBSD, Electron backscatter diffraction, SEM",
author = "Koblischka-Veneva, {Anjela Dimitrova} and Koblischka, {Michael Rudolf} and K. Ogasawara and Masato Murakami",
year = "2003",
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T1 - Position-dependent texture analysis of melt-textured YBCO by means of electron backscatter diffraction

AU - Koblischka-Veneva, Anjela Dimitrova

AU - Koblischka, Michael Rudolf

AU - Ogasawara, K.

AU - Murakami, Masato

PY - 2003/10

Y1 - 2003/10

N2 - The texture and phase distribution of melt-textured YBa2Cu 3Ox (YBCO) was studied by means of automated electron backscatter diffraction (EBSD) analysis as a function of the position in the bulk pellet of 4 cm diameter. A total of five samples was cut from the pellet; four samples from the surface of the bulk with different distances to the seed crystal, and one cut in vertical direction in the middle of the pellet. The melt-textured YBCO samples require a two-phase analysis to be performed, so a high surface quality is necessary to enable an automated EBSD scan. Good quality Kikuchi patterns are obtained from both the 1 2 3 and 2 1 1 phases. We found an inhomogeneous distribution of the 2 1 1 particles. Whereas the samples cut from the surface contain a large amount of 211 particles, in the samples of the vertical direction only traces of 2 1 1 particles are found. Furthermore, we measured the misorientation angle distribution of all samples. The data are presented in form of phase mappings, misorientation distribution functions and pole figures.

AB - The texture and phase distribution of melt-textured YBa2Cu 3Ox (YBCO) was studied by means of automated electron backscatter diffraction (EBSD) analysis as a function of the position in the bulk pellet of 4 cm diameter. A total of five samples was cut from the pellet; four samples from the surface of the bulk with different distances to the seed crystal, and one cut in vertical direction in the middle of the pellet. The melt-textured YBCO samples require a two-phase analysis to be performed, so a high surface quality is necessary to enable an automated EBSD scan. Good quality Kikuchi patterns are obtained from both the 1 2 3 and 2 1 1 phases. We found an inhomogeneous distribution of the 2 1 1 particles. Whereas the samples cut from the surface contain a large amount of 211 particles, in the samples of the vertical direction only traces of 2 1 1 particles are found. Furthermore, we measured the misorientation angle distribution of all samples. The data are presented in form of phase mappings, misorientation distribution functions and pole figures.

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