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Determination of the packing fraction in photonic glass using synchrotron radiation nanotomography

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 µ...

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Detalles Bibliográficos
Autores principales: Ogurreck, Malte, do Rosario, Jefferson J., Leib, Elisabeth W., Laipple, Daniel, Greving, Imke, Marschall, Felix, Last, Arndt, Schneider, Gerold A., Vossmeyer, Tobias, Weller, Horst, Beckmann, Felix, Müller, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5082463/
https://www.ncbi.nlm.nih.gov/pubmed/27787250
http://dx.doi.org/10.1107/S1600577516012960
Descripción
Sumario: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.