Study of reversible changes of the coercive force of Nd-Fe-B- based alloys subjected to cyclic heat treatments

Lileev, A. S.; Sein, V. A.; Khotulev, E. S.

doi:10.1088/1742-6596/1134/1/012035

Cited by 1 publication

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The greatest influence on the magnetic properties of materials is exerted by their chemical composition, dispersion and particle morphology [9][10][11][12]. There are many methods to obtain metal NPs and NCs, but not all of them allow to control of the properties of intermediate and final products during synthesis.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of Fe, Co and Ni Based Nanopowders Produced by Chemical-Metallurgy Method

Nguyên

Konyukhov

Minh³

et al. 2021

Eurasian Chem. Tech. J.

View full text Add to dashboard Cite

This research study describes the magnetic properties of Fe, Co and Ni metallic nanopowders (NPs) and their ternary nanocomposites (NCs), which can be used as fillers in radio-wave absorbing composite materials and coatings, as well as for magnetic protection of banknotes and security paper. The nanopowders were prepared by the chemical metallurgy method. The desired properties of Fe, Co and Ni NPs and NCs were achieved by co-precipitation, the addition of surfactants and changes in reduction temperature and time parameters. Magnetic measurements showed that all samples of pure metal NPs are semi-hard magnetic materials. The added surfactants have distinct effects on the dimensional and magnetic characteristics of Fe, Co and Ni NPs. Ni–Co–Fe NCs are also mainly semi-hard magnetic materials. Fine-tuning of their composition and chemical reduction temperatures allows controlling the values of Ms and Hc in large ranges from 49 to 197 A·m2/kg and from 4.7 to 60.6 kA/m, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%