Composition dependence of spontaneous crystallization of phosphosilicate glass melts during cooling

S.J. Liu, C.F. Zhu, Y.F. Zhang, Z.H. Xiao, Yuanzheng Yue

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Crystallization behavior of alumino-phospho-silicate melts during cooling is studied by means of the differential scanning calorimetry, X-ray diffractometry and viscometry. The results show a pronounced impact of alkaline earth oxide, alkali oxide and fluoride on the crystal type and crystallization degree. It is found that adding NaF into the studied compositions slightly decreases melt fragility and improves both the glass-forming ability and melt workability. This effect is associated with the unique structural role of NaF compared to the other modifier oxides. It is also found that the onset viscosity of crystallization can be used as a parameter for describing both glass-forming ability and melt workability.
Original languageEnglish
JournalGlass Technology-European Journal of Glass Science and Technology Part A
Volume53
Issue number6
Pages (from-to)235–239
Number of pages5
ISSN1753-3546
Publication statusPublished - 2012

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