Abstract
We have studied the reaction between NaBH4 and TiCl4 at elevated temperatures in the range 570–1020 K and pressures of up to 10 MPa, with no solvent. The results indicate that nanoparticulate titanium diboride forms at temperatures above 820 K. According to electron microscopy data, the titanium diboride powder obtained at 1020 K consists of spherical particles 35–50 nm in diameter, in reasonable agreement with the equivalent particle diameter of ≃45 nm evaluated from the specific surface area of the TiB2 and with the crystallite size D hkl ≃ 30 nm evaluated from X-ray diffraction data.
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Original Russian Text © S.E. Kravchenko, V.I. Torbov, S.P. Shilkin, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 6, pp. 691–693.
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Kravchenko, S.E., Torbov, V.I. & Shilkin, S.P. Preparation of titanium diboride nanopowder. Inorg Mater 46, 614–616 (2010). https://doi.org/10.1134/S0020168510060105
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DOI: https://doi.org/10.1134/S0020168510060105