Featured Application: This is a contribution towards developing low-cost Fe-based permanent magnets that are suitable for the automobile industry.Abstract: Intrinsic magnetic properties (saturation magnetization, anisotropy fields, and Curie temperatures) of Ce 2 Fe 14 B doped with Al, Ni, and Si are presented. Substitution for Fe by these elements leads to the formation of solid solutions that crystallize in the tetragonal Nd 2 Fe 14 B structure. Substituting Al, Ni, or Si for Fe leads to a decrease in both the saturation magnetization and the anisotropy field of Ce 2 Fe 14 B. Ni and Si increase the Curie temperature of Ce 2 Fe 14 B while Al reduces it. While, for the Ce 2 (Fe 14−x T x )B containing Ni, a maximum Curie temperature of 210 • C was observed at 9 atom % Ni (x = 1.45), the highest value of 252 • C was found for the Ce 2 Fe 14 B containing 14 atom % Si (x = 2.26).
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