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An Oxygen‐Effervescent Aluminate Glass
Author(s) -
Hosono Hideo,
Abe Yoshihiro
Publication year - 1987
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1987.tb04958.x
Subject(s) - softening , aluminate , softening point , oxygen , materials science , volume (thermodynamics) , mineralogy , oxygen pressure , composite material , thermodynamics , chemistry , cement , physics , organic chemistry
A foaming‐agent‐free aluminate glass of the composition 59CaO·7MgO·27Al 2 O 3 ·7SiO 2 (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.