Multi-scale quantitative analysis of carbon texture, nanotexture and structure: I. Electron diffraction-based anisotropy measurements

Briefly, the azimuthal intensity profile of the 002 diffraction ring is extracted and fitted by a model based on Gaussian functions, while a fit of the average radial profile provides the offset constant. We show that this single algorithm works for values of OA ranging from less than 25° up to ∼180°. Our method was validated on various pyrolytic carbon samples, specifically the dense, spherulitic deposits in TRISO nuclear fuel particles for 4th generation high temperature reactors.