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Kinetics and mechanism of oxidation of sialons

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

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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.

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Authors and Affiliations

  1. Kiev Polytechnic Institute, USSR

    V. A. Lavrenko, Yu. G. Gogotsi & O. D. Shcherbina

  2. Institute of Materials Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    V. A. Lavrenko, Yu. G. Gogotsi & O. D. Shcherbina

Authors
  1. V. A. Lavrenko
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  2. Yu. G. Gogotsi
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  3. O. D. Shcherbina
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Translated from Poroshkovaya Metallurgiya, No. 9(273), pp. 54–58, September, 1985.

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Lavrenko, V.A., Gogotsi, Y.G. & Shcherbina, O.D. Kinetics and mechanism of oxidation of sialons. Powder Metall Met Ceram 24, 710–713 (1985). https://doi.org/10.1007/BF00792169

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  • DOI: https://doi.org/10.1007/BF00792169

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