title: Determination of the packing fraction in photonic glass using synchrotron radiation nanotomography.
abstract: Photonic glass is a material class that can be used as photonic broadband reflectors, for example in the infrared regime as thermal barrier coating films. Photonic properties such as the reflectivity depend on the ordering and material packing fraction over the complete film thickness of up to 100 µm. Nanotomography allows acquiring these key parameters throughout the sample volume at the required resolution in a non-destructive way. By performing a nanotomography measurement at the PETRA III beamline P05 on a photonic glass film, the packing fraction throughout the complete sample thickness was analyzed. The results showed a packing fraction significantly smaller than the expected random close packing giving important information for improving the fabrication and processing methods of photonic glass material in the future.
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
authors: Malte
authors: M
authors: Ogurreck
authors: Institute of Advanced Ceramics, Technical University Hamburg-Harburg, Denickestrasse 15, 21073 Hamburg, Germany.
authors: Jefferson J
authors: JJ
authors: do Rosario
authors: Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
authors: Elisabeth W
authors: EW
authors: Leib
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
authors: Daniel
authors: D
authors: Laipple
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
authors: Imke
authors: I
authors: Greving
authors: Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
authors: Felix
authors: F
authors: Marschall
authors: Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
authors: Arndt
authors: A
authors: Last
authors: Institute of Advanced Ceramics, Technical University Hamburg-Harburg, Denickestrasse 15, 21073 Hamburg, Germany.
authors: Gerold A
authors: GA
authors: Schneider
authors: Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
authors: Tobias
authors: T
authors: Vossmeyer
authors: Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
authors: Horst
authors: H
authors: Weller
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
authors: Felix
authors: F
authors: Beckmann
authors: Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
authors: Martin
authors: M
authors: Müller
keywords: X-ray microscopy; nanotomography; photonic glass