Use of Iron Nanopowders and High-Energy Mechanical Treatment of Blend for Raising the Density of Articles Obtained by Spark Plasma Sintering

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...

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Bibliographic Details
Published in:Metal science and heat treatment 2021-07, Vol.63 (3-4), p.214-219
Main Authors: Nguyen, T. H., Konyukhov, Yu. V., Nguyen, V. M., Lileev, A. S., Tang, V. P.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Engineering Thermodynamics
Heat and Mass Transfer
Iron
Materials Science
Metallic Materials
Permanent magnets
Plasma sintering
Process metallurgy
Sintering
Spark plasma sintering
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Summary: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.
ISSN:0026-0673
1573-8973
DOI:10.1007/s11041-021-00673-x