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SAXS and in-situ SAXS to follow the structural evolution in hybrid materials

Published online by Cambridge University Press:  10 June 2015

Silvia Pabisch ,
Harald Rennhofer ,
Nicola Hüsing  and
Herwig Peterlik
Silvia Pabisch
Affiliation:
University of Vienna, Faculty of Physics, Boltzmanngasse 5, Vienna, Austria
Harald Rennhofer
Affiliation:
University of Natural Resources and Applied Life Sciences Vienna, Institute of Physics and Material Science, Peter-Jordan-Strasse 82, Vienna, Austria
Nicola Hüsing
Affiliation:
Paris-Lodron University Salzburg, Materials Chemistry, Hellbrunnerstrasse 34, Salzburg, Austria
Herwig Peterlik
Affiliation:
University of Natural Resources and Applied Life Sciences Vienna, Institute of Physics and Material Science, Peter-Jordan-Strasse 82, Vienna, Austria
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Abstract

The paper focuses on the evolution of oriented nanostructures: An orientation in real space leads to scattering intensities with a preferred orientation with respect to the azimuthal angle in reciprocal space. Thus, the macroscopic orientation of nanostructures can be obtained from SAXS patterns. The additional advantage of in-situ SAXS is that one can directly follow the development of orientated nanostructures during thermal treatment, under extreme conditions or during processing. This is shown in the following for an orientational change of pores in two very different systems, the first being the formation of pores within carbon fibers during loading at high temperatures up to 2000 °C and the second is the development of macroscopically aligned pores in mesostructured silica in the sol-gel process during shear.

Keywords

x-ray diffraction (XRD)sol-gelfiber
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1754: Symposium OO/PP/QQ/TT – State-of-the-Art Developments in Materials Characterization , 2015 , pp. 3 - 11
Copyright
Copyright © Materials Research Society 2015 

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