The present thesis is divided into three chapters dealing with different aspects of the application of solid-state NMR as an analytical tool in material science. The first part deals with a more methodological subject, namely the optimization of 19F decoupling techniques for fluorinated membranes. The second part of the present thesis deals with the quantification of data obtained by the application of cross-polarization NMR spectroscopy on membranes for the use in polymer electrolyte fuel cells. The last part of this thesis shows the capability of the positive combination of X-ray diffraction and NMR relaxometry to describe the micro- and nanostructural processes during the high energy milling of fluorite.
