Processing and characterization of transparent Li-mica glass-ceramics |
Paper ID : 1351-UFGNSM-FULL |
Authors: |
Abstract: |
In order to fabrication of transparent glass-ceramics with Li-mica nano crystals, the glasses with chemical composition of 94.9 mass% Li(1+x)Mg3AlSi3(1+x)F2 (x=0.5) with 5.1 mass% MgF2 were crystallized. The glasses were fabricated via the conventional melt-quenching technique. Mica crystals were precipitated in the glass phase by later heat treatment. Glass samples had glass transition temperature (Tg), 557 ˚C, softening temperature (Ts), 603 ˚C, and crystallization peak temperature (Tp), 655 ˚C. The fine mica crystals with size of <50 nm were precipitated at 600˚C in one continuous glass phase of the binodal phase separation. It’s confirmed that both as-quenched and heat-treated samples are transparent in the visible wave length. |
Keywords: |
Transparent glass-ceramic; Li-mica; crystallization; nanocrystal. |
Status : Paper Accepted (Poster Presentation) |