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Abstract <p>This study examines the influence of mechanical activation (MA) and initial titanium powder properties on forced self-propagating high-temperature synthesis (SHS) compaction of Ti–C mixtures. MA of pure titanium powder substantially elevated its oxygen content from 0.3 to 2.0 wt %, whereas Ti + C mixtures exhibited minimal uptake (∼0.2–0.3 wt %) due to carbon black occlusion of titanium surface defects, enhancing reagent contact while inhibiting atmospheric oxidation. Ignition and combustion temperatures rose with oxygen concentration in titanium, independent of Ti–C interfacial area; however, burning velocity correlated directly with this area, increasing with MA time and declining with surface oxygen levels.</p>

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Effect of Mixing Conditions on Impurity Composition and Combustion Parameters of Ti + C Mixtures

  • 期刊论文

  • 发表日期：

    2026年5月26日

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  • Yu. V. Bogatov,
  • V. A. Shcherbakov

摘要

Abstract

This study examines the influence of mechanical activation (MA) and initial titanium powder properties on forced self-propagating high-temperature synthesis (SHS) compaction of Ti–C mixtures. MA of pure titanium powder substantially elevated its oxygen content from 0.3 to 2.0 wt %, whereas Ti + C mixtures exhibited minimal uptake (∼0.2–0.3 wt %) due to carbon black occlusion of titanium surface defects, enhancing reagent contact while inhibiting atmospheric oxidation. Ignition and combustion temperatures rose with oxygen concentration in titanium, independent of Ti–C interfacial area; however, burning velocity correlated directly with this area, increasing with MA time and declining with surface oxygen levels.