|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Magnetics and the Critical Materials Challenge: An FMD Symposium Honoring Matthew J. Kramer
||Giant Saturation Magnetization of Fe-based Soft Magnetic Amorphous Alloy by Introducing Nitrogen
||Song-Yi Kim, Hye-Ryeong Oh, Hwi-Jun Kim, Min-Ha Lee
|On-Site Speaker (Planned)
Transition metal nitrides have attracted great attention in recent years because of their outstanding physical and chemical characteristics, including optical, electrical, magnetic and mechanical properties. Commonly nitrogen introduced into magnetic materials as nitride forms, such as FeN, Co(Ni)N and (LiFe)N, which has strict limitation of chemical stoichiometry and crystal structure. In particular, iron nitrides to achieve non-rare earths based high performance magnetic characteristics have widely used as magnetic, optical recording materials. An excess Gibbs free energies induced and stored by non-equilibrium defects can provide extra driving force for nitride formation. The extra driving force stored in the Fe-based amorphous structure promotes occurring of nitridation. In the current study, we evaluate the role of nitrogen in enhancing magnetic moment of Fe-based amorphous alloy and raising Curie temperature which never been explored before.
||Magnetic Materials, Phase Transformations, Other