Soviet Powder Metallurgy and Metal Ceramics

, Volume 24, Issue 9, pp 710–713 | Cite as

Kinetics and mechanism of oxidation of sialons

  • V. A. Lavrenko
  • Yu. G. Gogotsi
  • O. D. Shcherbina
Test Methods and Properties of Materials


Oxidation at temperatures of up to 1300°C has no effect on the lattice constants of sialons. At 1000°C crystalline silica layers form on the surfaces of specimens which offer little protection against oxidation. Oxidation at 1300°C leads to the formation of a liquid silicate phase, which increases the oxidation resistance of the materials. However, the oxidation of a material containing more than 6% Al2O3 is accompanied by the formation of a blistered, foamed oxide film which readily disintegrates under any mechanical action.


Oxidation Silicate Foam Al2O3 Lattice Constant 
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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • V. A. Lavrenko
    • 1
    • 2
  • Yu. G. Gogotsi
    • 1
    • 2
  • O. D. Shcherbina
    • 1
    • 2
  1. 1.Kiev Polytechnic InstituteUSSR
  2. 2.Institute of Materials ScienceAcademy of Sciences of the Ukrainian SSRUkraine

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