Phase Separation in Low-Alkali Borosilicate Glasses Containing RO and Al2O3
It is well known that opalescence caused by phase separation is diminished by introduction of alumina into sodium borosilicate glasses [1–3], However, in investigations of low-alkali borosilicate glasses containing even small amounts of oxides of the RO type it was found that in a number of cases opalescence of these glasses is intensified by introduction of Al2O3 [4, 5]. It was therefore considered interesting and desirable to investigate phase separation in borosilicate glasses containing both Al2O3 and RO, especially as in most cases both these oxides are actually present.
KeywordsPhase Separation Borosilicate Glass Heterogeneous Structure Boron Oxide Sodium Oxide
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