Title :
Effect of nitrogen content on magnetic properties of Sm2Fe17Nx and SmFe5Ny alloys
Author :
Chin, Tsung-Shune ; Lin, Cheng-Hao ; Bai, H.J. ; Huang, Y.H. ; Cheng, K.S. ; Huang, S.H.
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsing Hua Univ., Hsinchu, Taiwan
fDate :
9/1/1992 12:00:00 AM
Abstract :
Magnetic properties of Sm2Fe17Nx and SmFe5Ny with different nitrogen contents are studied. It was found that the magnetocrystalline anisotropy for both Sm 2Fe17Nx and SmFe5Ny alloys changes from easy plane to easy axis at x>0.13 and y>0.07. The 1:5, 1:3, and α-Fe phases coexist in homogenized SmFe5 alloy. Nitrogenation reduces the 1:3 and α-Fe phases, and stabilizes the 1:5 phase in SmFe5Ny alloys. The transition in magnetocrystalline anisotropy from easy plane to easy axis for Sm2 Fe17Nx and SmFe5Ny alloys is gradual and dependent on nitrogen content
Keywords :
Curie temperature; X-ray diffraction examination of materials; ferromagnetic properties of substances; iron alloys; magnetic anisotropy; magnetisation; nitridation; permanent magnets; samarium alloys; α-Fe phases; Curie temperature; Sm2Fe17Nx alloys; SmFe5Ny alloy; X-ray diffraction; crystal structure; magnetic properties; magnetocrystalline anisotropy; nitrogenation; powder; saturation magnetisation; thermal magnetic curve; Anisotropic magnetoresistance; Diffraction; Iron; Magnetic anisotropy; Magnetic properties; Nitrogen; Perpendicular magnetic anisotropy; Powders; Samarium; X-ray scattering;
Journal_Title :
Magnetics, IEEE Transactions on
