Analysis of nucleation behavior of Na2O-SiO2-ZrO2 glass by DTA

Mariko Katoh; Takashi Wakasugi; Katsuhisa Tanaka; Rikuo Ota

doi:10.14853/pcersj.2004F.0.648.0

17th Fall Meeting of The Ceramic Society of Japan

Session ID : 2P47

DOI https://doi.org/10.14853/pcersj.2004F.0.648.0

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Host: The Ceramic Society of Japan

Analysis of nucleation behavior of Na₂O-SiO₂-ZrO₂ glass by DTA

*Mariko Katoh, Takashi Wakasugi, Katsuhisa Tanaka, Rikuo Ota

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Keywords: glass, nucleation, DTA, Crystallization

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Abstract

Crystallization behavior of 47Na₂O-51SiO₂-2ZrO₂ glass was analyzed by the method proposed by Ray et al. The number density of nuclei obtained by the present study was higher than that by optical microscope measurement, but the nucleation rates obtained by these methods agreed well. The reasons of this disagreement are considered to be the nucleation during a raise or drop in temperature in the measurement and the temperature dependence of the critical size of nuclei.

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