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Some sintering characteristics of chromic oxide-chromium cermets

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A study was made of the preparation, under various conditions, of chromic oxide-chromium cermets, involving the extrusion of charge materials with a plasticizer and sintering of the resultant rod specimens in air or in argon, with or without a chromic oxide-alumina packing material. Some characteristic features of structure evolution during the sintering of these cermets in a carbon-containing atmosphere and in a vacuum were noted. In air, sintering proceeds slowly owing to the formation of a volatile oxide, but in a neutral atmosphere with oxide packing material it becomes activated, because the atmosphere generated by the packing material helps to maintain an equilibrium vapor pressure of Cr2O3 evaporation products within the specimen. The optimum chromium content of these cermets was found to be 15%. Some properties of such cermets were determined.

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Authors and Affiliations

  1. Institute of Materials Science, Academy of sciences of the Ukrainian SSR, Ukraine

    A. B. Belykh, M. A. Kuzenkova & P. S. Kislyi

Authors
  1. A. B. Belykh
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  2. M. A. Kuzenkova
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  3. P. S. Kislyi
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Translated trom Poroshkovaya Metallurgiya, No. 10 (118), pp. 19–24, October, 1972.

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Belykh, A.B., Kuzenkova, M.A. & Kislyi, P.S. Some sintering characteristics of chromic oxide-chromium cermets. Powder Metall Met Ceram 11, 787–791 (1972). https://doi.org/10.1007/BF00844702

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  • DOI: https://doi.org/10.1007/BF00844702

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