ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 35, (3) 235 - 243 (1991)


VOLATILIZATION OF TYPE E BOROSILICATE GLASS
 
Hlaváč Jan, Krejčí Jiří
 
Department of Glass and Ceramics, Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czechoslovakia

The loss in weight due to volatilization of the Eutal alkali-free glass was determined over the temperature range of 1150 - 1450 °C in a stream of dry and moist nitrogen (PH₂O = 20 kPa). The volatilization rate is strongly promoted by water vapour pressure. An analysis of the results indicates that the vapour pressure of HBO₂ at the melt surface is the decisive factor.


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