Opaque Silica Glass Fabricated by Slip Casting and Sintering. (Part 2). Bubble Formation
| Autor: | Koji Tsukuma, Kenji Kamo |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Materials science
Opacity business.industry Bubble Sintering General Chemistry Slip (materials science) Condensed Matter Physics Light scattering law.invention Physics::Fluid Dynamics Optics Optical microscope law Materials Chemistry Ceramics and Composites Liquid bubble Crystallization Composite material business |
| Zdroj: | Journal of the Ceramic Society of Japan. 108:431-434 |
| ISSN: | 1882-1022 0914-5400 |
| DOI: | 10.2109/jcersj.108.1257_431 |
| Popis: | Bubbles are essential in the formation of opaque silica glass, because opacity results from light scattering by bubbles dispersed throughout the glass matrix. In this sintering study of slip casting of a silica compact, the formation of bubbles was observed. In the final densification stage, a large number of small bubbles formed at around 1600°C. With increasing sintering temperature, isolated bubbles became larger and, concurrently, the number of bubbles decreased. Opacity increased with increasing sintering temperature up to 1800°C. These results are discussed from the viewpoint of the critical bubble size which determines whether bubbles expand or shrink. |
| Databáze: | OpenAIRE |
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