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Electron Backscatter Diffraction Study of Brachiopod Shell Calcite - Microscale Phase and Texture Analysis of a Polycrystalline Biomaterial

Particle & Particle Systems Characterization 25(5-6): 474-478

Autoren/Herausgeber: Schmahl WW
Griesshaber E
Neuser RD
Götz AJ
Luter C
Erschienen: 2009

Electron backscatter diffraction (EBSD) is an easy to use and highly automated microdiffraction method suitable for the determination of crystallographic phase and crystallite orientation. The high level of hierarchical structural organization in the shells of marine organisms was studied. Calcite brachiopod shell materials were found to belong to three types of microstructure: nano to microcrystalline layers of acicular crystals, fiber composites with calcite single crystal fibers with [uv0] morphological axes, and material formed by columnar crystals with [001] morphological axes selected by competitive growth.

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