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Alkali Attack of Glass Surfaces by Molten Salts
Author(s) -
BARTHOLOMEW ROGER F.,
KOZLOWSKI THEODORE R.
Publication year - 1967
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.1151-2916.1967.tb15051.x
Subject(s) - sodium hydroxide , borosilicate glass , potassium hydroxide , soda lime , alkali metal , sodium oxide , cubic zirconia , base (topology) , sodium , inorganic chemistry , durability , materials science , hydroxide , chemistry , chemical engineering , mineralogy , oxide , metallurgy , composite material , organic chemistry , mathematical analysis , ceramic , mathematics , engineering
The surface reaction of soda‐lime‐silica, sodium borosilicate, soda‐zirconia‐silica, and soda‐alumina‐silica glasses with pure molten sodium hydroxide and potassium hydroxide was investigated at 350° and 425°C, respectively. Chemical durability of these glasses is assessed in terms of an acid‐base concept in which the glass network forms the acid function. Use of a mixture of sodium hydroxide in sodium nitrate resulted in a tenfold increase in the zirconia‐silica glass durability at concentrations up to 60 mole % sodium hydroxide.