Nitrogen Dissolution in Alkali-barium-metaphosphate Melts
Phosphorus oxynitride glasses were prepared by remelting 30R2O-20BaO-50P2O5, (R=Li, Na or K) glasses in anhydrous ammonia. The nitrogen content of these metaphosphate melts decreased with increasing size of the alkali ion. The dissolution rate in water and thermal expansion coefficient of the base glasses increased with increasing alkali ion size. The dissolution rate of the oxynitride glasses was lower than that of the base glasses but was essentially independent of the alkali ion. The thermal expansion coefficient of the oxynitride glasses increased with increasing alkali size as observed in other glasses.
M. Rajaram and D. E. Day, "Nitrogen Dissolution in Alkali-barium-metaphosphate Melts," Journal of Materials Science, Springer Verlag, Feb 1989.
The definitive version is available at http://dx.doi.org/10.1007/BF01107444
Materials Science and Engineering
Keywords and Phrases
Polymer Sciences; Industrial Chemistry/Chemical Engineering; Characterization and Evaluation Materials; Mechanics
Article - Journal
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