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Preparation and Properties of Oxynitride Glasses Made from Potassium Metaphosphate
Author(s) -
Lei Xingye,
Day Delbert E.
Publication year - 1989
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.1151-2916.1989.tb06289.x
Subject(s) - potassium , metaphosphate , materials science , thermal expansion , phosphate glass , dissolution , mineralogy , softening point , phosphate , softening , refractive index , chemical engineering , chemistry , composite material , metallurgy , organic chemistry , optoelectronics , engineering
Potassium phosphate oxynitride (KPON) glasses were made by heating crystalline KPO 3 at 702 ° to 775 ° C in dry ammonia. The softening temperature, thermal expansion coefficient, refractive index, and dissolution rate in water were measured as a function of nitrogen content and compared with the properties of oxynitride glasses made from LiPO 3 and NaPO 3 .