|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Materials Science for High-Performance Permanent Magnets
||Fabrication of Submicrometer-sized Sm2Fe17N3 Hard Magnetic Particles
||Toshiharu Teranishi, Hsin-Lun Wu, Ryota Sato
|On-Site Speaker (Planned)
The hard magnetic particles containing light rare-earth element with high magnetocrystalline anisotropy have drawn great attention because of the potential application in high energy-product permanent magnets. The Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub> hard magnetic particles prepared by introducing nitrogen atoms into the interstitial sites of the Sm<sub>2</sub>Fe<sub>17</sub> alloy particles can be applied to high performance bonded magnets (saturation magnetization <i>M</i><sub>s</sub> = 1220 emu/cm<sup>3</sup>, anisotropy field <i>H</i><sub>k</sub> = 146 kOe, and Curie temperature <i>T</i><sub>c</sub> = 750 K). The particle size is one of the important factors for fabricating high energy-product permanent magnets. In this study, we report the fabrication of the Sm<sub>2</sub>Fe<sub>17</sub>N<sub>3</sub> hard magnetic particles in submicrometer size from the Fe<sub>3</sub>O<sub>4</sub>/SmO<sub>x</sub> core/shell nanoparticles synthesized by the chemical approach.