Structure Analysis of Sm2(Fe, Mn)17NX Magnet Original Research Article

In order to understand the coercivity mechanism of Sm2(Fe, Mn)17Nx magnet, the structure of amorphous phase found in the crystal phase was clarified using a TEM-tomography. It was found that amorphous phases precipitated as a fine wire in the crystal phase that differs with the phase separation in Sm-Co magnets. It may say that different coercivity mechanism should be proposed in each Sm2(Fe, Mn)17Nx and Sm-Co magnets.