The relation between structure and transparencyin transparent lithium alumino-silicate glass-ceramics containing β-quartz s.s. nano-crystals

The loss of light intensity due to the size of crystals and variety between refraction index of glassy and crystalline phases has limited the use of transparent glass-ceramics in optical applications. In this investigation, the effect of β-quartz s.s. and β-eucryptite nano-crystals on light scattering loss have been investigated in lithium alumino-silicate glass-ceramics using Mie and Rayliegh scattering theories. The comparison between theoretical and experimental results of scattering illustarates that precipitation of β-quartz s.s. nano-crystals is reduced the scattering loss due to the almost same refraction index with the glassy matrix. The produced glass-ceramics in this investigation transmit more than 90% of incident light photons and accordingly, they are suitable for optical applications.