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JOURNALS // Fizika Goreniya i Vzryva // Archive

Fizika Goreniya i Vzryva, 2023 Volume 59, Issue 1, Pages 77–84 (Mi fgv902)

Two-stage mechanochemical synthesis of niobium silicides during layer-by-layer combustion

O. V. Lapshin, O. A. Shkoda

Tomsk Scientific Center, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

Abstract: This paper describes experimental studies and a mathematical model of mechanical activation and high-temperature synthesis during the $\mathrm{Nb}$$2\mathrm{Si}$ combustion. The model is constructed in the macroscopic approximation. Synthesis regimes are determined depending on the duration of joint mechanical activation of the reagents. The kinetic parameters of pulverization of the initial powder mixture and the mechanochemical synthesis of the reaction product are obtained on the basis of experimental data by the inverse problem method.

Keywords: powder mixture, mechanical activation, silicides, combustion wave.

UDC: 536.46+541.124

Received: 17.02.2022
Revised: 05.03.2022
Accepted: 25.05.2022

DOI: 10.15372/FGV20230108


 English version:
Combustion, Explosion and Shock Waves, 2023, 59:1, 70–77

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© Steklov Math. Inst. of RAS, 2025