Liquid-liquid phase separation of melts and glasses in ferric ferrous oxide-silica system

A. Yasumori, A. Koike, Y. Kameshima, K. Okada, T. Yano, M. Yamane, S. Inoue

研究成果: Conference article査読

4 被引用数 (Scopus)

抄録

The existence of liquid-liquid miscibility gap in ferric ferrous oxide-silica system has been reported, however, the phase separation phenomena and the derived morphology of the phase separated glasses are uncertain. In this study, the melt-quenched samples of 5 Fe3O4-95 SiO2 and 15 Fe3O4-85 SiO2 (mol%) were prepared by melting at 2300°C or 2200°C (expected to be above miscibility gap), and subsequently at 1800°C or 1750°C (in immiscible region) by use of infrared image furnace and quenching at the rate of ≈ 102 K/sec. The glassy materials exhibited phase separation having discrete spherical particles or interconnected structure due to the composition, melting temperature and time. Also, the segregation of Fe component occurred during melting, which was caused by the difference of specific gravity of components in the melt.

本文言語English
ページ(範囲)459-464
ページ数6
ジャーナルMaterials Research Society Symposium - Proceedings
455
出版ステータスPublished - 1997
イベントProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
継続期間: 2 12月 19966 12月 1996

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