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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 Controlling First-order Magnetic Phase Transitions in Rare-earth Intermetallics
Author(s) Vitalij K. Pecharsky
On-Site Speaker (Planned) Vitalij K. Pecharsky
Abstract Scope First-order magnetostructural phase transitions are highly sought in the development of functional magnetic materials, for example those that exhibit giant magnetocaloric effects. Understanding the mechanisms that lead to magnetic and lattice instabilities is important both to achieve a more complete control of magnetostructural phase transformations and for design of better materials in support of future energy applications. We compare Eu2In and Pr2In that exhibit anhysteretic magnetoelastic phase transitions and fully-reversible giant magnetocaloric effects. We also discuss novel approaches for controlling hysteresis in Gd5Si2Ge2 and La(Fe,Si)13 – archetypal materials that exhibit partially reversible giant magnetocaloric effects. This work was performed at the Ames Laboratory with support by the Division of Materials Sciences and Engineering of the Office of Basic Energy Sciences, Office of Science of U.S. Department of Energy (DOE). Ames Laboratory is operated for the U.S. DOE by Iowa State University of Science and Technology under Contract No. DE-AC02-07CH11358.
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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