Dispersion patterns of graphene and carbon nanotubes in ceramic matrix composites

► Dispersion of graphene and carbon nanotubes in ceramic hosts. ► Neutron scattering reveals the global distribution patterns of the nanoscale fillers. ► Graphene can be more efficiently dispersed than nanotubes. ► Distributions patterns correlate with mechanical properties. ► Uniform dispersion of graphene achieved in ceramic matrix.