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Preparation of zirconium diboride nanopowders in a sodium tetraborate ionic melt

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Abstract

Reactions between zirconium powder 10–15 μm in particle size and microcrystalline boron 10–20 μm in particle size in an Na2B4O7 ionic melt have been studied at temperatures from 600 to 850°C and reaction times from 5 to 10 h. The results demonstrate that ZrB2 forms starting at 750°C. According to scanning electron microscopy data, the ZrB2 powder consists of particles 90–95 nm in average size. The crystallite size evaluated from X-ray diffraction data is 85 nm.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    L. S. Volkova, A. G. Burlakova, S. E. Kravchenko & S. P. Shilkin

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  1. L. S. Volkova
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  2. A. G. Burlakova
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  3. S. E. Kravchenko
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  4. S. P. Shilkin
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Correspondence to L. S. Volkova.

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Original Russian Text © L.S. Volkova, A.G. Burlakova, S.E. Kravchenko, S.P. Shilkin, 2013, published in Neorganicheskie Materialy, 2013, Vol. 49, No. 12, pp. 1285–1288.

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Volkova, L.S., Burlakova, A.G., Kravchenko, S.E. et al. Preparation of zirconium diboride nanopowders in a sodium tetraborate ionic melt. Inorg Mater 49, 1187–1189 (2013). https://doi.org/10.1134/S0020168513120157

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  • DOI: https://doi.org/10.1134/S0020168513120157

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