A bulk glass and a thin sol-gel film near the molar composition Li20.Al203.4Si02 were crystallised by appropriate heat treatments. Whereas the interior f the glass displayed randomly oriented spodumene crystals, the rim showed an alignment of the crystals normal to the surface. With X-ray pole figure measurements a (111) fibre texture could be confirmed. Atomic force microscope images also proved an orientation in the crystallised film and the pole fixtures confirmed a similar fibre texture as in the case of the crystalline surface layer on the bulk material.
Origin
Inst Nichtmetallische Werk, Germany
Journal Title
Glastech Ber Glass Sci Technol 73 C1 2000 98-103
Sector
Glass Ceramics
Class
GC 512