Influence of BaO addition on the phase formation characteristics in Li2O-Al2O3-ZnO-SiO2-TiO2- ZrO2 glass

Yun Mo Sung

doi:10.1557/JMR.2002.0071

Influence of BaO addition on the phase formation characteristics in Li₂O-Al₂O₃-ZnO-SiO₂-TiO₂- ZrO₂ glass

Yun Mo Sung

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

3 Citations (Scopus)

Abstract

The effect of BaO addition on the crystallization of Li₂O-Al₂O₃-ZnO-SiO₂-TiO₂- ZrO₂ (LAZSTZ) glass was investigated and discussed. The crystallization temperature of BaO-added LAZSTZ precursor glass (LBAZSTZ) was decreased due to the increase in the number of broken ionic bonds, while the transparency of the glass-ceramic was maintained. The lowered activation energy for crystallization in LBAZSTZ glass strongly supports the increase in the number broken bonds. During heating LBAZSTZ glass, phase separation did not occur most probably due to the competition between metal cations having a certain degree of ionic field strength. The formation of β-spodumene as a major phase in LBAZSTZ glass-ceramic was identified using x-ray diffraction.

Original language	English
Pages (from-to)	517-520
Number of pages	4
Journal	Journal of Materials Research
Volume	17
Issue number	3
DOIs	https://doi.org/10.1557/JMR.2002.0071
Publication status	Published - 2002 Mar

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Sung, Y. M. (2002). Influence of BaO addition on the phase formation characteristics in Li₂O-Al₂O₃-ZnO-SiO₂-TiO₂- ZrO₂ glass. Journal of Materials Research, 17(3), 517-520. https://doi.org/10.1557/JMR.2002.0071

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abstract = "The effect of BaO addition on the crystallization of Li2O-Al2O3-ZnO-SiO2-TiO2- ZrO2 (LAZSTZ) glass was investigated and discussed. The crystallization temperature of BaO-added LAZSTZ precursor glass (LBAZSTZ) was decreased due to the increase in the number of broken ionic bonds, while the transparency of the glass-ceramic was maintained. The lowered activation energy for crystallization in LBAZSTZ glass strongly supports the increase in the number broken bonds. During heating LBAZSTZ glass, phase separation did not occur most probably due to the competition between metal cations having a certain degree of ionic field strength. The formation of β-spodumene as a major phase in LBAZSTZ glass-ceramic was identified using x-ray diffraction.",

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