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- W1959118820 abstract "In this work, we present a study focused on the effect of partial substitution of Co by Fe on structure and magnetic properties of nanocrystalline Pr 2 Co 7 . These compounds were synthesized by mechanical alloying and to correlate their properties with microstructural evolution, a multi‐scale study by: X‐ray diffraction (XRD), transmission electron microscopy, and magnetization was carried out. The Rietveld analysis of XRD diagrams shows that Pr 2 Co 7− x Fe x , annealed at 973 K, mainly adopt a hexagonal Ce 2 Ni 7 type structure with P 6 3 / mmc space group. These pseudo‐ternary compounds exhibit more interesting magnetic properties than the binary Pr 2 Co 7 compounds. A systematic study of the intrinsic magnetic properties of these alloys shows that the substitution leads to enhancement of the Curie temperatures ( T C ) by 26% for a Fe content equal to 0.5. This increase is due to the electronic as well as the magnetovolume effects. In addition, the study of extrinsic magnetic properties of the Pr 2 Co 6.5 Fe 0.5 compound has revealed the existence of a large coercive field H c , and a high remanent magnetization M r . Our results show that in these alloys, iron in solid solution has a strong effect on hardness and ordering temperature, which is particularly promising for permanent magnet applications." @default.
- W1959118820 created "2016-06-24" @default.
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- W1959118820 date "2014-01-22" @default.
- W1959118820 modified "2023-10-18" @default.
- W1959118820 title "Intrinsic and extrinsic magnetic properties of nanocrystalline Pr<sub>2</sub> (Co,Fe)<sub>7</sub>" @default.
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- W1959118820 doi "https://doi.org/10.1002/pssa.201330259" @default.
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