Influence of Glass Additions on Illitic Clay Ceramics

influence of heat treatment on crystallization and transparency of glass-ceramics containing lithium-mica nanocrystals

in this study, the preparation of transparent glass-ceramics with lithium-mica nanocrystals by melting-quenching method was investigated. the effect of heat treatment time and temperature on the crystalline phases, microstructure and transparency of the samples were studied. in order to obtain a fine microstructure, an optimum condition for heat treatment has been found to be very important in ...

Influence of Radiation and Multivalent Cation Additions on Phase Separation and Crystallization of Glass

Iron Phosphate Glass-ceramics

The crystallization of 40Fe2O3-60P2O5, 10ZnO-30Fe2O3-60P2O5 and (43.3−x)PbO–(13.7+x)Fe2O3–43P2O5, (0 < x < 30), glasses and glassceramic have been investigated. The structural evolution of glasses during heat treatment at various temperatures and the tendency for crystallization for series of glasses with modified composition are characterized by a dendrite-like phase separation in the early st...

-doped chalcogenide glass-ceramics based on selenium

Rare earth doped glass-ceramics transparent in the infrared region up to 16 μm have been prepared and studied. The enhancement of the emission of Er 3+ ions at 1.54 μm with increasing crystallinity was demonstrated in a seleniumbased glass-ceramic having a composition of 80GeSe2-20Ga2Se3+1000 ppm Er. The optical transmission, microstructure and luminescence properties of a base glass and glass-...

Crystallisation of Foturan® glass–ceramics

hotostructurable glass–ceramics are suitable for 3-dimensional microfabrication and, in some instances, can be used as an alternative material o silicon in the microfabrication of micro-electro-mechanical-system (MEMS) devices. Foturan® is a photosensitive lithium–aluminium–silicate lass that can be structured by an exposure to UV light, followed by a thermal treatment and an etching step. In t...