# Article

Thermophysical Properties of Materials
2019. V. 57. № 1. P. 32–36
Kovalev D.Yu., Shilkin S.P., Konovalikhin S.V., Kalinnikov G.V., Korobov I.I., Kravchenko S.E., Khomenko N.Yu., Andrievski R.A.
Thermal expansion of microand nanocrystalline $\rm HfB_2$
Annotation
Hafnium diboride nano- and microcrystals are studied by high-temperature X-ray diffraction in the temperature range of $300$–$1500$ K. $\rm HfB_2$ nanocrystals are found to have a greater thermal expansion coefficient than $\rm HfB_2$ microcrystals. The thermal expansion of $\rm HfB_2$ is found to be anisotropic with respect to the unit cell axes.
Article reference:
Kovalev D.Yu., Shilkin S.P., Konovalikhin S.V., Kalinnikov G.V., Korobov I.I., Kravchenko S.E., Khomenko N.Yu., Andrievski R.A. Thermal expansion of microand nanocrystalline $\rm HfB_2$, High Temp., 2019. V. 57. № 1. P. 32