The effect of equimolar substitution of lithium or barium metaphosphate in boric oxide was studied on the glass transition temperature (Tg) and devitrification behaviour. Hypotheses on the structural units present were inferred from Tgvs. composition curves. The different thermal stabilities of the glasses were roughly evaluated. The devitrification kinetic parameters of LiPO3 and Ba(PO3)2 glasses were evaluated by means of thermoanalytical methods.
Structure and devitrification of lithium phosphate-boron oxide (Li2O·P2O5-B2O3) and barium phosphate-boron oxide (BaO·P2O5-B2O3) glasses / Branda, Francesco; Aronne, Antonio; A., Marotta; A., Buri. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - STAMPA. - 113:(1987), pp. 351-357. [10.1016/0040-6031(87)88337-5]
Structure and devitrification of lithium phosphate-boron oxide (Li2O·P2O5-B2O3) and barium phosphate-boron oxide (BaO·P2O5-B2O3) glasses
BRANDA, FRANCESCO;ARONNE, ANTONIO;
1987
Abstract
The effect of equimolar substitution of lithium or barium metaphosphate in boric oxide was studied on the glass transition temperature (Tg) and devitrification behaviour. Hypotheses on the structural units present were inferred from Tgvs. composition curves. The different thermal stabilities of the glasses were roughly evaluated. The devitrification kinetic parameters of LiPO3 and Ba(PO3)2 glasses were evaluated by means of thermoanalytical methods.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
