Unveiling Single-Crystal Domains in Granular Structures of Porous YBa2Cu3Oy Using EBSD without Surface Polishing

Yoshihiro Shimazu

doi:10.4028/p-54Y8Dr

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Unveiling Single-Crystal Domains in Granular Structures of Porous YBa₂Cu₃O_y Using EBSD without Surface Polishing
p.135

HomeMaterials Science ForumMaterials Science Forum Vol. 1155Unveiling Single-Crystal Domains in Granular...

Unveiling Single-Crystal Domains in Granular Structures of Porous YBa₂Cu₃O_y Using EBSD without Surface Polishing

Abstract:

Electron backscatter diffraction (EBSD) conventionally necessitates the preparation of flat, damage-free surfaces, typically achieved through mechanical or chemical polishing. However, for porous materials susceptible to fracture, such procedures are not only technically challenging but also risk altering or obscuring critical microstructural features, particularly at fine length scales. Despite the widespread reliance on surface polishing, its necessity in EBSD analysis—especially for highly porous materials—has seldom been critically examined, and studies omitting such preparation remain scarce. In the present study, EBSD analysis was conducted on porous polycrystalline YBa₂Cu₃O_y without any surface treatment. The absence of polishing preserved the pristine microstructure, free from artifacts commonly introduced by conventional preparation techniques. Although the surface topography limited the number of pixels yielding high-quality diffraction patterns, orientation imaging revealed that the surface granules predominantly exhibit single-crystalline domain structures. These findings demonstrate that EBSD can be successfully applied to porous materials without surface polishing, thereby providing a rapid, non-destructive approach for microstructural characterization while preserving the material’s intrinsic structural integrity.

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Periodical:

Materials Science Forum (Volume 1155)

Pages:

135-143

DOI:

https://doi.org/10.4028/p-54Y8Dr

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Online since:

August 2025

Authors:

Yoshihiro Shimazu*

Keywords:

Electron Backscatter Diffraction, Granular Structure, Orientation Imaging Microscopy, Porous Materials, Surface Analysis, YBCO

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References

[1] R. Hong, A review of the preparation methods and techniques of electron backscatter diffraction (EBSD) samples, Advances in Engineering Innovation 10 (2024) 20-25.