New MAX-Phased Cast Materials by Metallothermic SHS in the V–Nb–Al–C System

V. A. Gorshkov^a^, *, N. Yu. Khomenko^a, P. A. Miloserdov^a^, **, and O. M. Miloserdova^a

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

Correspondence to: *e-mail: gorsh@ism.ac.ru
Correspondence to: **e-mail: yu_group@ism.ac.ru

Received 4 April, 2021

Abstract—Cast four-component МАХ compounds (V_1–xNb_x)₂AlC were prepared from V₂O₅–Nb₂O₅–Al–C powder mixtures by metallothermic SHS under 5 MPa of Ar and characterized by XRD, SEM/EDS, and video filming. Target product were found to contain (V_1–xNb_x)₂AlC compounds and Al₃Nb. Synthesized materials can find their application as structural materials in high-temperature applications in aggressive media.

Keywords: metallothermic SHS, MAX phases, (V_1–xNb_x)₂AlC compounds

DOI: 10.3103/S1061386221030031