GEL SYNTHESIS AND CRYSTALLIZATION OF LI2O.3GEO2 GLASS POWDERS

Authors
ARONNE A CATAURO M PERNICE P MAROTTA A
Citation
A. Aronne et al., GEL SYNTHESIS AND CRYSTALLIZATION OF LI2O.3GEO2 GLASS POWDERS, Materials chemistry and physics, 34(1), 1993, pp. 86-89
Citations number
10
Categorie Soggetti
Material Science
Journal title
Materials chemistry and physics → ACNP
ISSN journal
02540584
Volume
34
Issue
1
Year of publication
1993
Pages
86 - 89
Database
ISI
SICI code
0254-0584(1993)34:1<86:GSACOL>2.0.ZU;2-H
Abstract
Li2O.3GeO2 gel was synthesized by the hydrolytic polycondensation of g ermanium ethoxide with lithium methoxide. The crystallization behaviou r of the gel, examined by differential thermal analysis and X-ray diff raction, is reported and discussed. The phases crystallizing from the gel were identified as Li2GeO3, Li2Ge4O9 and GeO2. The activation ener gy for the crystallization was found to be 562 kJ mol-1. The results w ere also compared with those obtained for the conventional glass of th e same composition.