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Abstract <p>A composite material based on Ti–Al–N was obtained from titanium and aluminum powders by self-propagating high-temperature synthesis in the wave combustion mode in a nitrogen atmosphere. The study of this system was of interest for the production metal-ceramic materials based on the <i>MAX</i> phase of Ti<sub>2</sub>AlN (phases <i>M</i><sub><i>n</i> + 1</sub><i>AX</i><sub><i>n</i></sub>, where <i>n</i> = 1, 2, 3, …; <i>M</i> is a transition <i>d</i>-metal; <i>A</i> is a <i>p</i>-element; <i>X</i> is N). The resulting composite was studied by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray microanalysis. It was shown that the <i>MAX</i> phase of Ti<sub>2</sub>AlN, nitrides TiN and AlN, and intermetallic compounds Ti<sub><i>х</i></sub>Al<sub><i>у</i></sub> were formed in the sample. A detailed analysis of the morphological distribution of the constituent phases was performed, based on which the mechanism of formation of the phase composition of the composite under conditions of layer-by-layer filtration combustion of the material was discussed.</p>

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Combustion Synthesis and Microstructure of the Ti2AlN/TiNх/AlN/TiхAlу Composite

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • R. M. Nikonova,
  • N. S. Larionova,
  • V. I. Lad’yanov

摘要

Abstract

A composite material based on Ti–Al–N was obtained from titanium and aluminum powders by self-propagating high-temperature synthesis in the wave combustion mode in a nitrogen atmosphere. The study of this system was of interest for the production metal-ceramic materials based on the MAX phase of Ti2AlN (phases Mn + 1AXn, where n = 1, 2, 3, …; M is a transition d-metal; A is a p-element; X is N). The resulting composite was studied by X-ray diffraction, scanning electron microscopy, and energy dispersive X-ray microanalysis. It was shown that the MAX phase of Ti2AlN, nitrides TiN and AlN, and intermetallic compounds TiхAlу were formed in the sample. A detailed analysis of the morphological distribution of the constituent phases was performed, based on which the mechanism of formation of the phase composition of the composite under conditions of layer-by-layer filtration combustion of the material was discussed.