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Impurities in zirconium carbide powders produced by various methods

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    Determinations were made of the amounts of Si, Al, Ti, Cr, Mn, Fe, Ni, O, and N in zirconium carbide batches produced by the reaction of zirconium oxide with carbon in a vacuum (Dnepropetrovsk Chemical Reagents Factory) and in a reducing gas atmosphere (Special Design and Technology Department, Institute of Materials Science, Academy of Sciences of the Ukrainian SSR), by synthesis from the simple substances in a vacuum (Institute of Materials Science, Academy of Sciences of the Ukrainian SSR), and by self-propagating high-temperature synthesis. The total amounts of impurities in all the batches were found to be of the same order.

  2. 2.

    It has been ascertained that many of the impurities in zirconium carbide produced by the methods investigated occur as free metals and compounds soluble in hydrochloric acid, and their amounts can therefore be substantially reduced by appropriate treatment.

  3. 3.

    According to literature data, the amounts of oxygen and nitrogen in zirconium carbide can be decreased by raising the synthesis temperature above 2000°C.

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Authors and Affiliations

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

    O. I. Popova & T. Ya. Kosolapova

Authors
  1. O. I. Popova
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  2. T. Ya. Kosolapova
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Translated from Poroshkovaya Metallurgiya, No. 8(188), pp. 1–4, August, 1978.

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Popova, O.I., Kosolapova, T.Y. Impurities in zirconium carbide powders produced by various methods. Powder Metall Met Ceram 17, 573–575 (1978). https://doi.org/10.1007/BF00797326

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  • DOI: https://doi.org/10.1007/BF00797326

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