title: Photon Energy Becomes the Third Dimension in Crystallographic Texture Analysis.
abstract: Conventional analysis of the preferred orientation of crystallites (crystallographic texture) involves X-ray diffraction with area detectors and 2D data output. True 3D, spatially resolved information requires sample rotation in the beam, thus changing the probed volume, which introduces signal smearing and precludes the scanning of complex structures. This obstacle has been overcome by energy-dispersive Laue diffraction. A method has been devised to reach a large portion of reciprocal space and translate the X-ray photon energy into the missing third dimension of space. Carbon fibers and lobster exoskeleton as examples of biomineralized tissue have been analyzed. The major potential of this method lies in its "one-shot" nature and the direct 3D information requiring no previous knowledge of the sample. It allows the texture of large samples with complex substructures to be scanned and opens up the conceptual possibility of following texture changes in situ, for example, during crystallization.
authors.affiliation: Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria.
authors.forename: Tilman A
authors.initials: TA
authors.lastname: Grünewald
authors.affiliation: Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria.
authors.forename: Harald
authors.initials: H
authors.lastname: Rennhofer
authors.affiliation: Department of Analytical Chemistry, Ghent University, Belgium.
authors.forename: Pieter
authors.initials: P
authors.lastname: Tack
authors.affiliation: Deutsches Elektronen Synchrotron, Hamburg, Germany.
authors.forename: Jan
authors.initials: J
authors.lastname: Garrevoet
authors.affiliation: XMaS-The UK CRG Beamline, ESRF-The European Synchrotron, Grenoble, Cedex 9, France.|Department of Physics, University of Liverpool, UK.
authors.forename: Didier
authors.initials: D
authors.lastname: Wermeille
authors.affiliation: XMaS-The UK CRG Beamline, ESRF-The European Synchrotron, Grenoble, Cedex 9, France.|Department of Physics, University of Liverpool, UK.
authors.forename: Paul
authors.initials: P
authors.lastname: Thompson
authors.affiliation: DUBBLE@ESRF, Netherlands Organisation for Scientific Research (NWO), Grenoble Cedex 9, France.
authors.forename: Wim
authors.initials: W
authors.lastname: Bras
authors.affiliation: Department of Analytical Chemistry, Ghent University, Belgium.
authors.forename: Laszlo
authors.initials: L
authors.lastname: Vincze
authors.affiliation: Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria. helga.lichtenegger@boku.ac.at.
authors.forename: Helga C
authors.identifier: 0000-0002-6624-1419
authors.initials: HC
authors.lastname: Lichtenegger
keywords: X-ray diffraction; biomineralization; crystallographic texture; energy-dispersive Laue diffraction