Effect of Nitrogenation on the Intrinsic Magnetic Properties of the Compounds (Nd1-xCeₓ)1.1Fe₁₀CoTi

• Published in: IEEE transactions on magnetics Vol. 56; no. 11; pp. 1 - 5
• Main Authors: Martinez Sanchez, H., Alfonso, L. E. Zamora, Hernandez, J. S. Trujillo, Jaramillo, D. Salazar, Alcazar, G. A. Perez
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-11-2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Alloy systems; Anisotropic magnetoresistance; Anisotropy; Compounds; Curie temperature; Intrinsic magnetic properties; Magnetic field measurement; Magnetic properties; Magnetic saturation; Magnetism; Magnetization; Nitrogen; Nitrogenation; Permanent magnets; Temperature; uniaxial anisotropy
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2020.3020094

The effect of the nitrogenation process on intrinsic magnetic properties such as saturation magnetization, anisotropy field, magnetocrystalline anisotropy constant, and Curie temperature of the (Nd 1− x Ce x ) 1.1 Fe 10 CoTi (<inline-formula> <tex-math notation="LaTeX">x = 0.0 </tex-math></inline-formula>, 0.5 and 1) alloy systems are analyzed. The anisotropy field increases from 1.8 to 2.8 T with the substitution of Nd by Ce. The nitrogenation process resulted in an increase in the saturation magnetization, anisotropy field, and Curie temperature. The best magnetic properties were found for the Nd 1.1 Fe 10 CoTiN y compound, for which it was estimated a saturation magnetization of 153.3 Am 2 kg −1 , anisotropy field of 10.3 T, anisotropy constant of 5.98 MJm −3 , and Curie temperature of 768.9 K. A slight reduction in mean particle size was obtained after the nitrogenation process (~5.4 to <inline-formula> <tex-math notation="LaTeX">\sim 3.9~\mu \text{m} </tex-math></inline-formula>).