| About this Abstract |
| 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 |