Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets

by / Friday, 06 April 2018 / Published in

Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets


Published in: Journal of Alloys and Compounds, 749, 640-644
2018/06/15
Publisher URL: https://www.sciencedirect.com/science/article/pii/S0925838818312027?via%3Dihub
DOI: https://doi.org/10.1016/j.jallcom.2018.03.325 Authors: Abstract:

In this work, we report the effects of partial substitution of Ce by Sm in CeFe9Co2Ti alloys on their magnetic and structural properties. The alloys were prepared in bulk and melt-spun ribbons. The alloys present the ThMn12 phase in the full range of substitutions, and reach anisotropy> fields above 8 T for the best alloy. After heat treatment, melt-spun ribbons show high values of magnetization (>112 A m2/kg), Curie temperatures >370 °C and enhanced coercivity. Although the coercivity values obtained are already suitable for permanent magnet applications, they are still low as compared to the anisotropy field (less than 6%). Coercivity is expected to improve by optimizing the microstructure of the best samples.

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