The preparation of a titanium composite powder containing high-melting TiN nanoparticles using an electric-arc plasma torch is studied. Using an Evo MA15 electron microscope (Carl Zeiss) and a DRON-4.0 diffractometer, both the surface morphology and the internal structure of powder particles are investigated, an X-ray phase analysis of these particles is performed, and a distribution map of the elements both over the surface of the obtained composite particle and over its volume is constructed. It is shown that the nanoparticles are uniformly distributed over the entire volume of titanium particles and are completely clad with Ti. The nanostructured powders obtained in this way and used as nanomodifying additives increase the homogeneity of the distribution of the high-melting elements introduced into the melt, protect the nanoparticles from the direct interaction with ambient medium, increase their wettability, and prolong their shelf life. These factors improve the efficiency of metal and alloy nanomodification.

中文翻译：

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等离子流中纳米结构复合粉体形成的研究

研究了使用电弧等离子炬制备包含高熔点TiN纳米颗粒的钛复合粉末的方法。使用Evo MA15电子显微镜（卡尔蔡司）和DRON-4.0衍射仪，研究了粉末颗粒的表面形态和内部结构，对这些颗粒进行了X射线相分析，并确定了元素的分布图不仅在所得复合颗粒的表面上而且在其体积上都进行了构建。结果表明，纳米颗粒均匀地分布在钛颗粒的整个体积上，并被钛完全覆盖。以此方式获得并用作纳米改性添加剂的纳米结构粉末可提高引入熔体中的高熔点元素分布的均匀性，保护纳米颗粒免于与环境介质的直接相互作用，提高其润湿性，并延长其货架寿命。这些因素提高了金属和合金纳米改性的效率。