Digital Characteristics of Microstructure of Diamond—Silicon Carbide Composites
Andrey G. Chekuryaev,
Maxim M. Sychov,
Sergey N. Perevislov,
Vladimir N. Ulanov
Affiliations
Andrey G. Chekuryaev
Faculty of Mechanics, Department of Theory of Materials Science, Saint-Petersburg State Institute of Technology (Technical University), 26 Moskovsky Prospect, 190013 Saint-Petersburg, Russia
Maxim M. Sychov
Faculty of Mechanics, Department of Theory of Materials Science, Saint-Petersburg State Institute of Technology (Technical University), 26 Moskovsky Prospect, 190013 Saint-Petersburg, Russia
Sergey N. Perevislov
Central Research Institute of Structural Materials “Prometey”, National Research Center “Kurchatov Institute”, 49 Shpalernaya str., 191015 Saint-Petersburg, Russia
Vladimir N. Ulanov
Faculty of Information Technology and Management, Department of Computer-Aided Design and Management Systems, Saint-Petersburg State Institute of Technology (Technical University), 26 Moskovsky Prospect, 190013 Saint-Petersburg, Russia
As an example of the implementation of digital materials science approaches based on statistical processing of electron micrographs with the analysis of fractal parameters, the digital characteristics of microstructure of diamond–silicon carbide ceramic composite material are calculated. The lacunarity parameter characterizing the non-uniform distribution of filler particles in the matrix is found. Based on lacunarity values calculated at different scales, scale invariance parameter characterizing the dependence of lacunarity on the scale is evaluated. Voronoi entropy characterizing the structure based on the quantity of information is also calculated and used to determine the average number of neighboring particles and average distance between them. For the composites with high mechanical properties, the number of nearest neighbors approaches six, indicating an almost closest packing.
