Neutron Diffraction Study of the τ-Phase of Carbon-Doped Mn–Al Alloy

Em, V. T.; Latergaus, I. S.; Remeev, A. Sh.; Lee, C. T.

doi:10.1002/1521-396x(199702)159:2<323::aid-pssa323>3.0.co;2-7

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…With the FullProf software on ND diffractograms, it is possible to refine simultaneously the lattice parameters and the magnetic moments of the Mn atoms [6]. All 1a sites are filled by Mn atoms and 1d sites are filled with the excess of Mn, and with all Al atoms.…”

Section: Neutron Diffractionmentioning

confidence: 99%

Effect of Carbon Addition on Magnetic Order in Mn–Al–C Alloys

et al. 2017

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Obtaining 100% of metastable τ -phase (L10) in Mn-Al alloys needs addition of carbon and Mn in excess to stabilize the phase. The excess of Mn could lead to partial antiferromagnetic coupling, that would result in a reduction in magnetization, which is in agreement with the experimental results. To clarify this question, (Mn0.55Al0.45)100−xCx alloys, with x between 0 and 2, were rapidly quenched from the melt (by melt-spinning) and annealed at 550 • C. In the as-cast state, the sample is in the hexagonal paramagnetic ε-phase, and after annealing, the sample is in the tetragonal ferromagnetic τ -phase. Different routes for the addition of carbon were used. The structural properties were determined by neutron diffraction, and the magnetic properties by means of VSM measurements and neutron diffraction (ND).

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Section: Neutron Diffractionmentioning

confidence: 99%

Effect of Carbon Addition on Magnetic Order in Mn–Al–C Alloys

et al. 2017

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“…It is also necessary to add carbon that stabilizes the τ phase during its formation, and slows down the degradation of the materials over time. [42], [43], [44], [45], [46]. Fig.…”

Section: B the Tetragonal Structure L1mentioning

confidence: 97%

Getting Rid of Critical Raw Materials in Hard Magnets: Is it Feasible?

Mazaleyrat¹

2022

IEEE Trans. Magn.

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Hard Magnets are key components in the evolution of transportation technologies and renewable energies. In particular in automobile industry, the anticipated switch to full electric drive in the next 30 years will create a strong demand for magnets. Unfortunately, present high performance hard magnets uses critical elements, either rare-earth or cobalt, so we can foresee a big stress on the market. In this paper, we will review all existing hard magnets having functional properties adapted to automobile electric drives, the evolution of present material to reduce the critical elements content or to get rid of them. Finally a functional cost criteria will be set and discussed.

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Neutron Diffraction Study of the τ-Phase of Carbon-Doped Mn–Al Alloy

Cited by 2 publications

References 7 publications

Effect of Carbon Addition on Magnetic Order in Mn–Al–C Alloys

Effect of Carbon Addition on Magnetic Order in Mn–Al–C Alloys

Getting Rid of Critical Raw Materials in Hard Magnets: Is it Feasible?

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