Thermal Expansion of Micro- and Nanocrystalline HfB 2

D. Yu. Kovalev; S. P. Shilkin; S. V. Konovalikhin; G. V. Kalinnikov; I. I. Korobov; S. E. Kravchenko; N. Yu. Khomenko; R. A. Andrievskii

doi:10.1134/S0018151X18050164

Thermal Expansion of Micro- and Nanocrystalline HfB₂

Authors: Kovalev D.Y.¹, Shilkin S.P.², Konovalikhin S.V.¹, Kalinnikov G.V.², Korobov I.I.², Kravchenko S.E.², Khomenko N.Y.¹, Andrievskii R.A.²
Affiliations:
1. Institute of Structural Macrokinetics and Materials Science
2. Institute of Problems of Chemical Physics
Issue: Vol 57, No 1 (2019)
Pages: 32-36
Section: Thermophysical Properties of Materials
URL: https://journal-vniispk.ru/0018-151X/article/view/157732
DOI: https://doi.org/10.1134/S0018151X18050164
ID: 157732

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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.

About the authors

D. Yu. Kovalev

Institute of Structural Macrokinetics and Materials Science

Author for correspondence.
Email: kovalev@ism.ac.ru
Russian Federation, Chernogolovka, Moscow oblast, 142432