The effect of nano-modification and high-energy mechanical treatment in a magnetic mill on the process of spark plasma sintering of iron micropowders is studied. Iron nanopowders with a mean particle size of 94 nm are obtained by the method of chemical metallurgy. The nanopowders are introduced into the original blend with the help of a turbulent stirrer and a magnetic mill. The processes occurring during the high-energy mechanical treatment and subsequent sintering are considered, and their effect on the properties and the structure of the sintered specimens is assessed. Optimum variants for fabricating the material are suggested. The results may be used in the production of high-quality permanent magnets.

研究了磁磨机纳米改性和高能机械处理对放电等离子铁微粉烧结过程的影响。采用化学冶金法得到平均粒径为94 nm的铁纳米粉体。在湍流搅拌器和磁力研磨机的帮助下，纳米粉末被引入到原始混合物中。考虑了在高能机械处理和随后的烧结过程中发生的过程，并评估了它们对烧结试样的性能和结构的影响。建议制造材料的最佳变体。结果可用于生产高质量的永磁体。