Directly obtained τ-phase MnAl, a high performance magnetic material for permanent magnets

H Fang, S Kontos, J Ångström, J Cedervall… - Journal of Solid State …, 2016 - Elsevier
The metastable tetragonal τ-phase has been directly obtained from casting Mn 0.54 Al 0.46
and (Mn 0.55 Al 0.45) 100 C 2 using the drop synthesis method. The as-casted samples …

[HTML][HTML] One step preparation of pure 𝝉-MnAl phase with high magnetization using strip casting method

Z Shao, H Zhao, J Zeng, Y Zhang, W Yang, Y Lai… - AIP Advances, 2017 - pubs.aip.org
Ferromagnetic phase of Mn-Al exhibits great potential in the rare-earth free permanent
magnetic materials due to its high magnetocrystalline anisotropy, high magnetization, high …

Influence of processing on structure property correlations in τ-MnAl rare-earth free permanent magnet material

N Singh, V Mudgil, K Anand, AK Srivastava… - Journal of Alloys and …, 2015 - Elsevier
In order to understand the genesis of the magnetic τ-phase of MnAl alloy, which due to its
multiphase nature is generally difficult to synthesize as a single-phase, we have synthesized …

One step towards MnAl-based permanent magnets-Differences in magnetic, and microstructural properties from an intermediate annealing step during synthesis

S Shafeie, H Fang, D Hedlund, A Nyberg… - Journal of Solid State …, 2019 - Elsevier
The influence of an additional annealing step during synthesis on the preparation of MnAl
based permanent magnet alloys has been investigated. Bulk samples of Mn 55 Al 45 C 2 …

Structural, microstructural and magnetic evolution in cryo milled carbon doped MnAl

H Fang, J Cedervall, D Hedlund, S Shafeie… - Scientific reports, 2018 - nature.com
The low cost, rare earth free τ-phase of MnAl has high potential to partially replace bonded
Nd2Fe14B rare earth permanent magnets. However, the τ-phase is metastable and it is …

Microstructural development in MnAl-base permanent magnet materials: New perspectives

DP Hoydick, EJ Palmiere, WA Soffa - Journal of applied physics, 1997 - pubs.aip.org
The MnAl-base permanent magnets continue to loom on the horizon as potentially important
technological materials. Marginal enhancement of their technical magnetic properties and …

Preparation of nanocrystalline Mn–Al–C magnets by melt spinning and subsequent heat treatments

E Fazakas, LK Varga, F Mazaleyrat - Journal of Alloys and Compounds, 2007 - Elsevier
Mn54Al44C2 ribbon samples have been prepared by melt spinning in a single-phase ɛ
hexagonal disordered state and its exothermal transformation at around 500° C into a …

Formation of pure -phase in Mn–Al–C by fast annealing using spark plasma sintering

F Maccari, A Aubert, S Ener, E Bruder, I Radulov… - Journal of Materials …, 2022 - Springer
Mn–Al–C is intended to be one of the “gap magnets” with magnetic performance in-between
ferrites and Nd-Fe-B. These magnets are based on the metastable ferromagnetic τ-phase …

[HTML][HTML] Rare-earth-free MnAl-C-Ni permanent magnets produced by extrusion of powder milled from bulk

L Feng, J Freudenberger, T Mix, K Nielsch… - Acta Materialia, 2020 - Elsevier
Rare-earth-free MnAl-C-Ni permanent magnets have been produced for the first time by
extruding powders milled from bulk. The resulting materials, fabricated using different …

Phase-pure τ-MnAlC produced by mechanical alloying and a one-step annealing route

V Øygarden, J Rial, A Bollero, S Deledda - Journal of Alloys and …, 2019 - Elsevier
Phase-pure τ-MnAlC powder has been synthesized using mechanical alloying followed by a
single annealing step. Mechanical alloying from the elemental constituents resulted in 100 …