A two-dimensional waveguide beam for X-ray nanodiffraction

A characterization of the X-ray beam generated from differently sized two-dimensional waveguides was performed, giving values for the beam geometry, the transmission efficiency and absolute fluxes. A first high-resolution nanodiffraction experiment using the beam out of a two-dimensionally confining waveguide was performed on a nanocrystalline TiN hard coating in order to reveal the local gradients across the blasted coating.

Influence of the matrix on the fractal properties of precipitated silica in composites

Small-angle X-ray scattering experiments on composites of polymers and hierarchically structured silica reveal that internal and external forces caused by mixing processes determine the particle morphology. The strength of the interaction between the polymer chains and the particle surface does not visibly affect the experimental results.