Abstract
Hafnium diboride nano- and microcrystals are studied by high-temperature X-ray diffraction in the temperature range of 300–1500 K. HfB2 nanocrystals are found to have a greater thermal expansion coefficient than HfB2 microcrystals. The thermal expansion of HfB2 is found to be anisotropic with respect to the unit cell axes.
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This work was supported by the Russian Foundation for Basic Research, project no. 17-03-00040.
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Russian Text © The Author(s), 2019, published in Teplofizika Vysokikh Temperatur, 2019, Vol. 57, No. 1, pp. 37–41.
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Kovalev, D.Y., Shilkin, S.P., Konovalikhin, S.V. et al. Thermal Expansion of Micro- and Nanocrystalline HfB2. High Temp 57, 32–36 (2019). https://doi.org/10.1134/S0018151X18050164
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DOI: https://doi.org/10.1134/S0018151X18050164