Combustion of Transition Metal–Boron Mixtures in Argon Gas

N. A. Kochetov^a^, *, A. S. Rogachev^a^, **, I. D. Kovalev^a, and S. G. Vadchenko^a

^aMerzhanov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, 142432 Russia

Correspondence to: *e-mail: kolyan_kochetov@mail.ru
Correspondence to: **e-mail: rogachev@ism.ac.ru

Received 9 July, 2021

Abstract—Combustion of Me + 2B, (Me1 + Me2 + Me3 + Me4) + 8B, and (Me1 + Me2 + Me3 + Me4 + Me5) + 10B mixtures (Me = Ti, Hf, Nb, Zr, Ta) aiming at the preparation of a high-entropy metal diboride by SHS method was studied by using XRD and SEM analyses. We succeeded to prepare high-entropy diboride [TiHfZrNbTa]B₂ by SHS method from the above mixtures in a considerably good yield (54 vol %). Our results may turn interesting to those engaged in R & D of new high-entropy borides.

Keywords: SHS, transition metal–boron systems, high-entropy borides

DOI: 10.3103/S106138622104004X