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Journal of Materials Science

, Volume 24, Issue 2, pp 573–576 | Cite as

Nitrogen dissolution in alkali-barium-metaphosphate melts

  • Mohan Rajaram
  • Delbert E. Day
Papers

Abstract

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.

Keywords

Nitrogen Polymer Ammonia Phosphorus Thermal Expansion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd 1989

Authors and Affiliations

  • Mohan Rajaram
    • 1
  • Delbert E. Day
    • 1
  1. 1.Ceramic Engineering Department and Graduate Center for Materials ResearchUniversity of Missouri-RollaRollaUSA

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