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- W2387687060 abstract "Magnetic powders of Sm2Co17 alloy containing Fe,Cu and Zr were prepared by powder metallurgy method.Phase transformation and microstructure evolution of Sm(Co0.66 Fe0.25 Cu0.07 Zr0.02)8.0 alloy in the process of heat treatment were investigated by XRD and SEM.The results show that a hexagonal metastable TbCu7 structure type of 2∶ 17 phase is observed in the alloy ingot,and the solid solution of the solution-treated samples consists of hexagonal TbCu7(1∶ 7H) and rhombohedral Th2 Zn17(2∶ 17R) structure.After isothermal aging,TbCu7 and Th2 Zn17 structure is transformed into Th2 Zn17 type structure with precipitation of Sm-rich and Cu-rich phase.Through optimizing heat treatment process,the isotropic Sm2 Co17 bonded magnets with a density of 6.7 g /cm3 are obtained after solid solution at 1170 ℃ and aging at 830 ℃,and magnetic properties of the magnets are Br = 0.565 T,Hci = 615.2 kA /m and(BH) max = 53 kJ /m3." @default.
- W2387687060 created "2016-06-24" @default.
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- W2387687060 date "2011-01-01" @default.
- W2387687060 modified "2023-09-28" @default.
- W2387687060 title "Effect of heat treatment on microstructure and magnetic performance in Sm_2Co_(17) alloy" @default.
- W2387687060 hasPublicationYear "2011" @default.
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