Abstract—
We have synthesized a hydride phase based on a TiZrHfMoTa high-entropy alloy with a body-centered cubic lattice. Hydride formation has been shown by X-ray and neutron diffraction to be accompanied by a cubic-to-tetragonal lattice transformation. Structure analysis of a deuteride based on the same alloy has made it possible to locate the deuterium atoms and determine their position parameters.
REFERENCES
Miracle, D.B. and Senkov, O.N., A critical review of high entropy alloys and related concepts, Acta Mater., 2017, vol. 122, pp. 448–511.
Xu, Z.Q., Ma, Z.L., Wang, M., Chen, Y.W., Tan, Y.D., and Cheng, X.W., Design of novel low-density refractory high entropy alloys for high-temperature applications, Mater. Sci. Eng., A, 2019, vol. 755, no. 7, pp. 925–931.
Rempel, A.A. and Gel’chinskii, B.R., High-entropy alloys: preparation, properties and practical application, Izv. Ferrous Metall., 2020, vol. 63, nos. 3-4, pp. 248–253.
Kunce, I., Polanski, M., and Bystrzycki, J., Structure and hydrogen storage properties of a high entropy ZrTiVCrFeNi alloy synthesized using laser engineered net shaping (LENS), Int. J. Hydrogen Energy, 2013, vol. 38, no. 27, pp. 12180–12189.
Joo, S.H., Okulov, L.V., and Kato, H., Unusual two-step dealloying mechanism of nanoporous TiVNbMoTa high-entropy alloys during liquid metal dealloying, J. Mater. Technol., 2021, vol. 14, pp. 2945–2953.
Juan, C.C., Tsai, M.H., Tsai, C.W., Lin, C.M., Wang, W.R., et al., Enhanced mechanism properties of HfMoTaTiZr and HfMoNbTaTiZr refractory high-entropy alloys, Intermetallics, 2015, vol. 62, pp. 76–83.
Zlotea, C., Sow, M.A., Ek, G., Couzinié, J.-P., Perrière, L., Guillot, I., Bourgon, J., Møller, K.T., Jensen, T.R., Akiba, E., and Sahlberg, M., Hydrogen sorption in TiZrNbHfTa high entropy alloy, J. Alloys Compd., 2019, vol. 775, pp. 667–674.
Somenkov, V.A., Structure of hydrides, Ber Bunsen-Ges. Phys. Chem., 1972, vol. 76, pp. 724–728.
Funding
This work was supported by the Russian Federation Ministry of Science and Higher Education, project nos. AAAA-A16-1160531100 12-5 and 122012400-186-9.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflicts of interest.
Additional information
Translated by O. Tsarev
Publisher’s Note.
Pleiades Publishing remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Lushnikov, S.A., Agafonov, S.S. Structure of a Hydride Based on TiZrHfMoTa High-Entropy Alloy. Inorg Mater 59, 832–835 (2023). https://doi.org/10.1134/S0020168523080113
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0020168523080113