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High-strength ceramics from Zr02

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Refractories and Industrial Ceramics Aims and scope

Abstract

Specimens of powder fabricated by codeposition of zirconium and yttrium nitrates with the using special dry ing techniques and regranulation by the method of hot isostatic pressing have been tested in air allowing for the laws of compaction of granulated powder at a final firing temperature of about 1500°C. The resulting ma terial had the following properties: a density p = 5.91 g/cm (98% of the theoretical value), an ultimate bend ing strength a = 1100 MPa, and a crack resistance K = 19.5 MPa . rn A set of the specimens was sub jected to hot isostatic pressing after natural sintering and exhibited the following properties: p = 6.08 g/cm = 1400 MPa, K = 17.5 MPa · m1/2.

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Authors and Affiliations

  1. Donetsk Physicotechnical Institute of the National Academy of Sciences of Ukraine, Donetsk, Ukraine

    G. Ya. Akimov, V. G. Vereshchak, A. D. Vasil’ev, V. M. Timchenko, E. V. Chaika & A. D. Grabchuk

  2. Dnepropetrovsk State Chemical Engi neering Institute of Ukraine, Dnepropetrovsk, Ukraine

    G. Ya. Akimov, V. G. Vereshchak, A. D. Vasil’ev, V. M. Timchenko, E. V. Chaika & A. D. Grabchuk

  3. Institute of Prob lems of Materials Science of the National Academy of Sciences of Ukraine, Ukraine

    G. Ya. Akimov, V. G. Vereshchak, A. D. Vasil’ev, V. M. Timchenko, E. V. Chaika & A. D. Grabchuk

Authors
  1. G. Ya. Akimov
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  2. V. G. Vereshchak
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  3. A. D. Vasil’ev
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  4. V. M. Timchenko
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  5. E. V. Chaika
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  6. A. D. Grabchuk
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Akimov, G.Y., Vereshchak, V.G., Vasil’ev, A.D. et al. High-strength ceramics from Zr02 . Refract Ind Ceram 39, 324–325 (1998). https://doi.org/10.1007/BF02770593

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  • DOI: https://doi.org/10.1007/BF02770593

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