Orientation of embedded y 2BaCuO 5 particles within the YBa 2Cu 3O x matrix in melt-textured YBCO superconductors

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Abstract

Automated electron backscatter diffraction (EBSD) was employed to study the local orientations of embedded Y 2BaCuO 5 (Y-211) particles within the YBa 2Cu 3O x (Y-123) superconducting matrix of large grain, melt-textured Y-Ba-Cu-O (YBCO) samples. High-quality Kikuchi patterns were obtained, enabling automated mapping of the individual crystal orientations and a two-phase analysis of the samples. Investigations were performed on a variety of melt-textured YBCO samples, including samples with different element additions. We observe from the maps that the embedded Y-211 particles do not have any preferred orientation in melt-textured YBCO with (0 0 1) orientation, and that the YBCO growth is not altered for certain orientations of the Y-211 particles. In samples with (1 0 0) orientation, on the other hand, we observe only a small misorientation within the YBCO matrix, and the embedded Y-211 particles do not exhibit any texture. We can conclude from the EBSD maps obtained that the formation of small Y-211 particles does not disturb the Y-123 matrix growth, whereas the presence of large Y-211 particles leads, significantly, to the formation of subgrains.

Original languageEnglish
Title of host publicationPhysica Status Solidi C: Conferences
Pages1714-1719
Number of pages6
Volume2
Edition5
DOIs
Publication statusPublished - 2005

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YBCO superconductors
matrices
diffraction
misalignment
electrons
textures
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Orientation of embedded y 2BaCuO 5 particles within the YBa 2Cu 3O x matrix in melt-textured YBCO superconductors . / Koblischka-Veneva, Anjela Dimitrova; Koblischka, Michael Rudolf; Hari Babu, N.; Cardwell, D. A.; Mücklich, F.; Murakami, Masato.

Physica Status Solidi C: Conferences. Vol. 2 5. ed. 2005. p. 1714-1719.

Research output: Chapter in Book/Report/Conference proceedingChapter

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abstract = "Automated electron backscatter diffraction (EBSD) was employed to study the local orientations of embedded Y 2BaCuO 5 (Y-211) particles within the YBa 2Cu 3O x (Y-123) superconducting matrix of large grain, melt-textured Y-Ba-Cu-O (YBCO) samples. High-quality Kikuchi patterns were obtained, enabling automated mapping of the individual crystal orientations and a two-phase analysis of the samples. Investigations were performed on a variety of melt-textured YBCO samples, including samples with different element additions. We observe from the maps that the embedded Y-211 particles do not have any preferred orientation in melt-textured YBCO with (0 0 1) orientation, and that the YBCO growth is not altered for certain orientations of the Y-211 particles. In samples with (1 0 0) orientation, on the other hand, we observe only a small misorientation within the YBCO matrix, and the embedded Y-211 particles do not exhibit any texture. We can conclude from the EBSD maps obtained that the formation of small Y-211 particles does not disturb the Y-123 matrix growth, whereas the presence of large Y-211 particles leads, significantly, to the formation of subgrains.",
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AU - Hari Babu, N.

AU - Cardwell, D. A.

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AU - Murakami, Masato

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