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• W2022454821 abstract "Abstract The magnetic and structural properties of rapidly quenched (Pr80Ga20)100-xFex, RTbFe and RTbFe(Co)M alloys are examined over a wide range of chemical compositions, where R ≡ Pr, Sm, MM and M ≡ B and Si. The Ga-containing samples show relatively high coercive fields (up to 3 kOe) in the amorphous state which subsequently disappear after crystallization. On the other hand, the high coercive fields (≈5 kOe) of melt-spun RTbFe samples decrease slightly after crystallization but their magnetic moment increases substantially. Melt-spun RTbFe(Co)M samples are generally magnetically soft in the as-quenched state. Magnetic hardening is produced by annealing the samples around 750°C leading to coercive fields which could not be measured with an ordinary electromagnet (Hc #62; 23 kOe). The best properties have been obtained on a Pr14Fe71B15 sample with a coercive field of 8 kOe and an energy product of 8.5 MGOe. Thermomagnetic data show that a structural transformation takes place upon heating the samples to 750°C. The Curie temperature of the precipitate phase is around 320°C while that of the as-quenched phase is around 160°C. Transmission electron microscope studies show a very fine precipitate structure with a precipitate size below 100 A. The precipitate phase is believed to be highly anisotropic leading to the observed hard magnetic properties." @default.
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• W2022454821 date "1984-01-01" @default.
• W2022454821 modified "2023-09-27" @default.
• W2022454821 title "Magnetic hysteresis in rapidly quenched rare-earth alloys" @default.
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• W2022454821 doi "https://doi.org/10.1016/0304-8853(84)90319-6" @default.
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