The effect of boria and titania addition on the crystallization and sintering behavior of Li2O-Al2O3-4SiO2 glass

Yun Mo Sung, Stanley A. Dunn, James A. Koutsky

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Abstract

Crystallization and sintering behaviors of four β-spodumene (Li2O-Al2O3-4SiO2) glasses having different compositions were investigated and compared by differential thermal analysis (DTA), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The Li2O-Al2O3-4SiO2 glass containing both B2O3 and TiO2 showed the lowest activation energy value for crystallization (220 ± 8 kJ/mol), whereas the stoichiometric Li2O-Al2O3-4SiO2 glass showed the highest value (322 ± 4 kJ/mol). The crystallization peak temperature (Tp) decreased from 918 to 819°C by the addition of both B2O3 and TiO2 to the stoichiometric Li2O-Al2O3-4SiO2 glass. The Li2O-Al2O3-4SiO2 glass containing both B2O3 and TiO2 showed approximately the same degree of sintering as the Li2O-Al2O3-4SiO2 glass containing only B2O3.

Original languageEnglish
Pages (from-to)455-462
Number of pages8
JournalJournal of the European Ceramic Society
Volume14
Issue number5
DOIs
Publication statusPublished - 1994
Externally publishedYes

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ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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