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Swelling of Microporous High‐Silica Glasses
Author(s) -
Takamori Takeshi,
Tomozawa Minoru
Publication year - 1982
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.1151-2916.1982.tb10497.x
Subject(s) - borosilicate glass , microporous material , swelling , materials science , phase (matter) , alkali metal , boron , chemical engineering , porous glass , silica glass , mineralogy , composite material , chemistry , porosity , organic chemistry , engineering
The swelling of microporous glasses in water was found to change as a function of the heat–treatment time and temperature required for phase separation in the original borosilicate glass (70SiO 2 ‐23B 2 O 3 ‐7Na 2 O (wt%)). The swelling appears to be determined primarily by the quantity of silica gel remaining in the micropores, which in turn is determined by the composition of the alkali‐borate‐rich phase of the phase‐separated glass.