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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
  • 18 Downloads

Conlusions

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.

Keywords

Oxidation Silicate Foam Al2O3 Lattice Constant 
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

© 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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