Article ID Journal Published Year Pages File Type
7902536 Journal of Non-Crystalline Solids 2014 5 Pages PDF
Abstract
The connectivity and length scale of spatial clustering of the structural units and the resultant topological aspects of amorphous SiOC networks, characteristic of polymer derived ceramics, are studied using Reverse Monte Carlo simulation, constrained by experimental density, composition and relative concentrations of SiCxO4 − x tetrahedra. Nanoscale clustering of SiCxO4 − x structural units results from mutual avoidance in connectivity between the constituent tetrahedra and the corresponding inefficiency in packing gives rise to a mass-fractal spatial distribution of the tetrahedra with a dimensionality of ~ 2.5.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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