Temperature dependent magnetic properties and application potential of intermetallic Fe11–xCox TiCe |
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| Authors: | D. Goll R. Loeffler R. Stein U. Pflanz S. Goeb R. Karimi G. Schneider |
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| Affiliation: | Aalen University, Materials Research Institute, , 73430 Aalen, Germany |
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| Abstract: | The novel quaternary compound Fe11–xCox TiCe (x = 0 to 3.25) of Mn12Th structure has been fabricated by arc melting. The analysis is focused on temperature dependent determination of intrinsic properties from 4 K to 750 K using domain pattern analysis and magnetometry. Above room temperature RT maximum values of anisotropy constant K1 and saturation polarization Js are observed for a Co content of 15 at% (x = 1.95) with K1 and Js of 2.15 MJ/m3 (1.22 MJ/m3) and 1.27 T (1.05 T) at RT (200 °C). At operating temperatures of 100 °C for this material magnetic properties (BH)max= 282 kJ/m3, µ0Hc = 0.94 T are expected. If a suitable microstructure could be processed, based on intrinsic properties of the phases the costs would be 35% per J/m3 of the costs of Dy‐free Fe–Nd–B. (© 2014 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim) |
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| Keywords: | Fe− Co− Ti− Ce ThMn12 structure hard magnetic phase permanent magnet |
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