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Abstract <p>The influence of the method and time of mixing Ta, Mo (Ti), Nb, V, and W refractory metals with carbon (soot) on the formation of high-entropy carbides in the thermal explosion mode was investigated. The ignition temperatures of the mixtures and the compositions of the resulting products were determined depending on the method of preparing mixtures of metals with soot. Among the investigated methods of obtaining TaTiNbVWC<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10573_2025_2338_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">\({}_{5}\)</EquationSource> <!--CESW2501007Vadchenko-m1--> </InlineEquation> and TaNbVMoWC<InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10573_2025_2338_Article_IEq1.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">\({}_{5}\)</EquationSource> <!--CESW2501007Vadchenko-m2--> </InlineEquation> high-entropy carbides, a multistep method of mixture preparation has been shown to be the most efficient. In the first step, a high-entropy solid solution of metals is prepared by high-energy mechanical treatment, after which soot is added to it, and additional high-energy mechanical treatment is carried out. Thermal explosion of this mixture results in the formation of high-entropy carbides.</p>

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Thermal Explosion in Ta–Ti–Nb–V–W–C and Ta–Nb–V–Mo–W–C Powder Mixtures

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • S. G. Vadchenko,
  • Yu. S. Vergunova,
  • A. S. Rogachev,
  • I. D. Kovalev,
  • D. Yu. Kovalev

摘要

Abstract

The influence of the method and time of mixing Ta, Mo (Ti), Nb, V, and W refractory metals with carbon (soot) on the formation of high-entropy carbides in the thermal explosion mode was investigated. The ignition temperatures of the mixtures and the compositions of the resulting products were determined depending on the method of preparing mixtures of metals with soot. Among the investigated methods of obtaining TaTiNbVWC \({}_{5}\) and TaNbVMoWC \({}_{5}\) high-entropy carbides, a multistep method of mixture preparation has been shown to be the most efficient. In the first step, a high-entropy solid solution of metals is prepared by high-energy mechanical treatment, after which soot is added to it, and additional high-energy mechanical treatment is carried out. Thermal explosion of this mixture results in the formation of high-entropy carbides.