Enhanced formation and improved thermal stability of ferromagnetic τ phase in nanocrystalline Mn55Al45 alloys by Co addition

MnAl alloy (τ phase) is one of the most promising rare-earth-free permanent magnets due to its remarkable magnetic properties. The metastable τ phase is normally produced by rapid quenching technique and subsequent heat treatments. In this work, the direct formation of pure τ phase in (Mn0.55Al0.45)...

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