Modeling the optical transmission of crystalline-glass materials composed of densely packed Mie particles

An approximation to the scattering efficiency for a collection of densely packed Mie particles is applied to compute the optical transmission (OT) relevant to glass crystallization. Initially, the shapes and shifts of the OT curves relative to the crystal size scale are computed and reviewed. Numerical simulations are made over the extended range of crystal number densities. The input data link to both forecasting the lithium disilicate glass crystallization as well as prolonging the virtual glass crystallization to higher sample crystallinity. The shape of the OT curves is also revealed at low OT magnitudes, in order to show the nature of the specific interference structure. The positions of the first OT minima linearly relate to the crystal number density. However, such linearity may change due to interparticle interactions that become important at the elevated packing densities of crystals.

► The optical transmission (OT) shows an interference structure. ► This structure has a relationship to glass crystallinity. ► Such a relationship is useful in the rapid detection of early phases of particle clustering. ► Elevated values of OTMIN are found at both large and low crystal concentrations. ► The positions of the OT minima are related to the crystal number density.