SKM 2023 – wissenschaftliches Programm

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SYGM: Symposium Green Magnets for Efficient Energy Conversion

SYGM 1: Green Magnets for Efficient Energy Conversion

SYGM 1.5: Hauptvortrag

Montag, 27. März 2023, 17:15–17:45, HSZ 01

Magnetocaloric materials for energy-efficient thermal control systems — •Victorino Franco, Aun N. Khan, Jorge Revuelta-Losada, Álvaro Díaz-García, Luis M. Moreno-Ramírez, and Jia Yan Law — University of Seville, Spain

Energy efficient and environmentally friendly thermal management have a direct impact on the sustainability of our way of life, with magnetocaloric refrigeration being promising for achieving a greener cooling technology [1]. However, appliances are not yet on the consumer market due to relevant limitations of the active materials. In addition to applications point of view, the effect can be used to perform studies of phase transitions. Focusing on rare earth free materials, two new types of have a promising future: high entropy alloys and materials for additive manufacturing. We will present a novel fabrication procedure for obtaining homogeneous composite filaments for additive manufacturing and we will demonstrate that the magnetocaloric response of the fillers is not affected by the manufacturing procedure [2]. We will also highlight magnetocaloric high-entropy alloys, for which new compositions have allowed to close the gap between traditional HEA and high-performing magnetocaloric materials [3,4].

[1] V. Franco et al., Progress in Materials Science 93 (2018) 112; [2] Á. Díaz-García et al., Composites Communications 35 (2022) 101352; [3] J.Y. Law et al., APL Materials 9, (2021) 080702; [4] J.Y. Law et al., Journal of Materials Research (2022). https://doi.org/10.1557/s43578-022-00712-0