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Electron Backscatter Diffraction Study of Brachiopod Shell Calcite – Microscale Phase and Texture Analysis of a Polycrystalline Biomaterial
Author(s) -
Schmahl Wolfgang W.,
Griesshaber Erika,
Neuser Rolf D.,
Goetz Andreas,
Lüter Carsten
Publication year - 2009
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.200800014
Subject(s) - electron backscatter diffraction , calcite , crystallite , materials science , acicular , microcrystalline , microscale chemistry , texture (cosmology) , microstructure , crystallography , electron diffraction , phase (matter) , scanning electron microscope , crystal (programming language) , mineralogy , composite material , diffraction , optics , geology , chemistry , metallurgy , programming language , mathematics education , mathematics , image (mathematics) , physics , organic chemistry , artificial intelligence , computer science
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.