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Corrosion of Phosphorus Oxynitride Glasses in Water and Humid Air
Author(s) -
BUNKER BRUCE C.,
ARNOLD GEORGE W.,
RAJARAM MOHAN,
DAY DELBERT E.
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.tb05663.x
Subject(s) - durability , anhydrous , phosphate , corrosion , dissolution , phosphorus , ammonia , materials science , water vapor , nitrogen , inorganic chemistry , titration , phosphate glass , hydrogen phosphate , chemical engineering , chemistry , metallurgy , composite material , organic chemistry , engineering
Phosphorus oxynitride (PON) glasses, prepared by remelting phosphate glasses in anhydrous ammonia vapor, are more resistant to dissolution in water and corrosion in humid environments than the parent phosphate glasses. The chemical durability of PON glasses is directly related to their nitrogen content. Solution analyses, pH stat titrations, and hydrogen depth profiles suggest that nitrogen improves the durability of phosphate glasses by cross‐linking the polymeric phosphate chains in the network structure.