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- W4220784759 abstract "• Mischmetal (MM 30 Nd 70 ) 30.4 Fe 68.2 Al 0.4 Cu 0.2 B 0.8 magnets were developed with sintering route. • Process conditions have been established to yield ideal microstructure. • Microstructure contains exchange coupled Re 2 Fe 14 B, Re-rich and CeFe 2 phases. • Mischmetal magnet demonstrates H c of 619 kA/m, B r of 1.15 T and (BH) max of 241 kJ/m 3. Mischmetal (MM 30 Nd 70 ) 30.4 Fe 68.2 Al 0.4 Cu 0.2 B 0.8 bulk magnets have been prepared with strip casting method followed by hydrogen decrepitating, jet milling, sintering and annealing. Process conditions to achieve optimum magnetic properties have been established through experimentations. XRD studies revealed main tetragonal RE 2 Fe 14 B phase and less RE-rich and CeFe 2 phases. Microscopic examinations elucidated that magnet microstructure composed of main magnetically MM 2 Fe 14 B hard phase, RE-rich intergranular phase and magnetically soft CeFe 2 phase. Henkel plot demonstrated the existence of exchange coupling between magnetic phase grains. Thermal studies showed Curie temperature of 278 °C for the Mischmetal (MM 30 Nd 70 ) 30.4 Fe 68.2 Al 0.4 Cu 0.2 B 0.8 magnet. Magnetic evaluations provoked coercivity H cj of 619kA/m, remanenec B r of 1.15 T and maximum energy product density of 241 kJ/m 3 for the (MM 30 Nd 70 ) 30.4 Fe 68.2 Al 0.4 Cu 0.2 B 0.8 magnetic alloy." @default.
- W4220784759 created "2022-04-03" @default.
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- W4220784759 date "2022-07-01" @default.
- W4220784759 modified "2023-09-29" @default.
- W4220784759 title "Fabrication and analysis of mischmetal MM-Fe-B magnetic alloy" @default.
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- W4220784759 doi "https://doi.org/10.1016/j.jmmm.2022.169257" @default.
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