Abstract
Topothesy and fractal dimensions were calculated for poly(acrylonitrile) (PAN) nanofibers mats obtained by electrospinning. These methods enable quantitatively describing and thus comparing solid-state surfaces and detecting fabric errors. The obtained variety of structural properties results from different substrates and after-treatments, e.g. stabilization and carbonization. The change in spatial morphology was reported for different magnification of images obtained with the use of Helium Ion Microscopy (HIM).
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