抄録
We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass Ba2Si3O8 (B2S3) using TEM observation and Raman spectroscopy. Spherical crystal growth (i.e., spherulite) of stoichiometric B2S3 phase was observed in the heat-treated glass samples, and the size of the spherulites drastically increased as the temperature increased during the heat-treatment process. It was also found that an initial precipitating phase in the precursive stage of crystallization is neither the B2S3 phase nor other crystalline phases in the BaO-SiO2 system. It was deduced that a metastable phase precipitates prior to the formation of spherulite and acts as nucleation site for the spherulite.
本文言語 | English |
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ページ(範囲) | 955-958 |
ページ数 | 4 |
ジャーナル | Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan |
巻 | 118 |
号 | 1382 |
出版ステータス | Published - 2010 10月 |
外部発表 | はい |
ASJC Scopus subject areas
- セラミックおよび複合材料
- 材料化学
- 化学 (全般)
- 凝縮系物理学