Refractories and Industrial Ceramics

, Volume 39, Issue 11–12, pp 404–410 | Cite as

Chemical stability of a composite material based on silicon and boron nitrides

  • I. Yu. Kelina
  • N. I. Ershova
  • Y. A. Drobinskaya
  • L. A. Plyasunkova


Results of a study of the chemical resistance of a composite Si3N4 — BN material to the action of acids and alkalis are presented. Independently of the content of BN and the porosity the material resists the action of HC1, HNO3, H2SO4, and KOH. Hydrofluoric acid has a strong effect on the composite material with over 30% BN even after only 10 days of contact. It is shown that the decomposition of the material obeys the rule “glass phase → Si3N4” and is selective; BN is more chemically stable than Si3N4.


Ceramic Material Boron Nitrides Silicon Nitride Glass Phase Acid Resistance 
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Copyright information

© Springer-Verlag 1998

Authors and Affiliations

  • I. Yu. Kelina
    • 1
  • N. I. Ershova
    • 1
  • Y. A. Drobinskaya
    • 1
  • L. A. Plyasunkova
    • 1
  1. 1.Tekhnologiya Research and Production AssociationObninsk State Research Center of the Russian FederationObninsk, Kaluga RegionRussia

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