An Oxygen-Effervescent Aluminate Glass |
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| Authors: | Hideo Hosono Yoshihiro Abe |
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| Affiliation: | Department of Materials Science and Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466, Japan |
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| Abstract: | A foaming-agent-free aluminate glass of the composition 59CaO·7MgO·27Al2O3·7SiO2 (mol%) exhibited marked effervescence on heating the as quenched glass to near its softening temperature. Numerous bubbles evolve over the entire glass. Their radii are nearly constant (50 μm) and depend on heat-treatment conditions. Their maximum volume goes up to ∼ 10 vol%. The bubbles consist solely of oxygen gas and pressure is ∼ 130 kPa (1.3 atm) at the softening temperature. |
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