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- W4313397727 abstract "Sm2Fe17N3 coarse powder was directly consolidated into a disc magnet by the high-pressure torsion technique. The huge superimposed hydrostatic pressure (10 GPa) made it possible to apply a large amount of plastic deformation to the disc as well as the powder particles of the brittle Sm2Fe17N3 compound at room temperature. This large deformation brought about grain subdivision inside powder particles and enabled to produce a bulk magnet having the coercivity of 5.7 kOe from the coarse powder having the coercivity of 1 kOe without reducing the particle size. It was clarified that those grain subdivision events are accompanied by the motion of dislocations confined in non-basal planes. Synchrotron X-ray diffractometry was also performed and revealed that too large strain, however, results in the disappearance of the hard magnetic Sm2Fe17N3 phase and the eventual loss of the coercivity." @default.
- W4313397727 created "2023-01-06" @default.
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- W4313397727 date "2023-03-01" @default.
- W4313397727 modified "2023-10-18" @default.
- W4313397727 title "Cold consolidation and coercivity enhancement in Sm2Fe17N3 magnets by high-pressure torsion" @default.
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- W4313397727 doi "https://doi.org/10.1016/j.scriptamat.2022.115251" @default.
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