About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
Development of Magnetic Refrigeration Materials for Cryogenic Applications |
Author(s) |
Hossein Sepehri Amin, Xin Tang, J. Lai, Anton Bolyachkin, Tadakatsu Ohkubo, Kazuhiro Hono |
On-Site Speaker (Planned) |
Xin Tang |
Abstract Scope |
Hydrogen will play a major role in the establishment of carbon neutrality. However, one of the major challenges is H2 liquefaction required for its storage and transportation. Cryogenic magnetic refrigeration (CMR) is a prospective environmentally friendly and highly efficient technology for liquefaction of H2. However, the lack of magnetic refrigerant materials with high magnetic entropy change in a wide temperature range of 77-20 K required for the hydrogen liquefaction is a bottle-neck for practical applications of CMR. In this talk, we will first demonstrate how data science was employed to reduce the transition temperature of rare-earth free (Mn,Fe,Co)2(P,Si) based compounds below 100 K while maintaining giant magnetocaloric effect. In the second part of the talk, we will show a series of Er(Ho)Co2-based materials developed with a giant magnetic entropy change (-∆Sm > 0.2 Jcm-3K-1) but without thermal hysteresis suitable for operation in the full temperature range required for hydrogen liquefaction. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, Machine Learning, Other |