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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Magnetics and the Critical Materials Challenge: An FMD Symposium Honoring Matthew J. Kramer
Presentation Title Giant Saturation Magnetization of Fe-based Soft Magnetic Amorphous Alloy by Introducing Nitrogen
Author(s) Song-Yi Kim, Hye-Ryeong Oh, Hwi-Jun Kim, Min-Ha Lee
On-Site Speaker (Planned) Min-Ha Lee
Abstract Scope 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.
Proceedings Inclusion? Planned:
Keywords Magnetic Materials, Phase Transformations, Other


A Solution to the Permalloy Problem
Challenges in Affordable, Reliable Permanent Magnets
Controlling First-order Magnetic Phase Transitions in Rare-earth Intermetallics
Critical Materials Challenges in ThMn12-type Hard Magnetic Alloys for Permanent Magnets
Developing Substitutes for Magnetic Alloys
Far-from-equilibrium Materials Processing
From High-throughput Synchrotron Diffraction to Closed-loop Autonomous Materials Discovery
Giant Saturation Magnetization of Fe-based Soft Magnetic Amorphous Alloy by Introducing Nitrogen
HDDR Treatment on Nd2Fe14B-based Magnets in the Presence of an Applied Magnetic Field
Iron Nitride: a Non-rare-earth Containing Permanent Magnet
Like Poles Attraction and Unlike Poles Repulsion - Science Behind the Mystery
Magnetoelastic Interactions Reduce Hysteresis in Soft Magnets
Mechanically Strengthened Heterogeneous Sm-Co Sintered Magnets
Microstructural Evolutions, Phase Transformations and Hard Magnetic Properties in Polycrystalline Ce-Co-Fe-Cu Alloys
Nanocomposite Soft Magnetics: Applications, State-of-art, and Emerging Trends
Structure and Magnetic Properties of Galfenol Nanocomposite Alloys
Synthesis and Characterization of Rare-earth-based Metallic Glasses
Synthesis and Stabilization of Magnetic Nanoparticles of Rare-earth Metal Alloys
Utilizing High Energy X-rays to Perform In Situ observations of Alnico Spinodal Evolution

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