Analysis of the wide-angle neutronscattering of non-graphitic carbontesting of an advanced evaluation approach
Non-graphitic carbons (NGCs) represent an important class of materials for several applications in research and industry. A quantitative description of the sp2-polyaromatic microstructure, showing substantial disorder compared to graphite, is desirable for linking material properties to the microstructure and tuning production processes accordingly. Ruland and Smarsly introduced a novel approach for the evaluation of wide-angle X-ray scattering (WAXS) data of non-graphitic carbons (NGCs), providing meaningful structural parameters describing size and disorder of the graphene stacks. Here we apply for beam time at the D4 instrument to acquire WANS data of six NGC samples D4 to further verify this algorithm and compare the structural parameters with those obtained from fitting WAXS data. Compared to WAXS and WANS experiments at the FIREPOD and E2 instruments at BER II, HZB (Berlin), WANS experiments at D4 allow for significantly larger values of the modulus of the scattering vector s (= Q / 2 Pi) due to the significant smaller neutron wavelength and thus will help to establish the WAXS evaluation as a routine method. In addition, a PDF analysis is to be performed.
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SMARSLY Bernd; BADACZEWSKI Felix; Henry E. Fischer; LOEH Marc; OSSWALD Oliver and PFAFF Torben. (2019). Analysis of the wide-angle neutronscattering of non-graphitic carbontesting of an advanced evaluation approach. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-26-218
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