SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS OF HIGH-ENTROPY CARBIDES IN THE REGIME OF A GASLESS THERMAL EXPLOSION

Yu. S. Vergunova; Вергунова Ю. С.; S. G. Vadchenko; Вадченко С. Г.; I. D. Kovalev; Ковалев И. Д.; D. Yu. Kovalev; Ковалев Д. Ю.; A. S. Rogachev; Рогачев А. С.; M. I. Alymov; Алымов М. И.

doi:10.31857/S268695352360023X

SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS OF HIGH-ENTROPY CARBIDES IN THE REGIME OF A GASLESS THERMAL EXPLOSION

Authors: Vergunova Y.S.¹, Vadchenko S.G.¹, Kovalev I.D.¹, Kovalev D.Y.¹, Rogachev A.S.¹, Alymov M.I.¹
Affiliations:
1. Merzhanov Institute of Structural Macrokinetics and Materials Science of the Russian Academy of Sciences (ISMAN)
Issue: Vol 513, No 1 (2023)
Pages: 131-134
Section: PHYSICAL CHEMISTRY
URL: https://rjmseer.com/2686-9535/article/view/651942
DOI: https://doi.org/10.31857/S268695352360023X
EDN: https://elibrary.ru/BJHJQF
ID: 651942

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Abstract

High-entropy carbides are a new class of inorganic compounds promising for a wide range of applications. The paper presents a new concept for the synthesis of powders of high-entropy carbides by the method of self-propagating high-temperature synthesis (SHS) in the gasless thermal explosion mode from previously mechanically synthesized and structured reaction mixtures. For the first time, high-entropy carbides TaTiNbVWC₅ and TaNbVMoWC₅ were obtained by this method, their crystal structure was determined, which was compared with similar compositions obtained by sintering.

Keywords

high-entropy alloys and carbides, thermal explosion, high-energy machining

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