About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Alloys and Compounds for Thermoelectric and Solar Cell Applications XII
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Presentation Title |
A Sandwich-structured Ni-Mn-Ga Particles/Cu Foil Composite Material Toward the Applications of Magnetic Cooling: Experiments and Simulations |
Author(s) |
Wan-Ting Chiu, Pimpet Sratong-On, DongKeun Han, Masaki Tahara, Volodymyr Chernenko, Hideki Hosoda |
On-Site Speaker (Planned) |
Wan-Ting Chiu |
Abstract Scope |
Materials exhibiting a magnetocaloric effect (MCE) are critical components in sustainable energies, such as magnetic refrigeration. Ferromagnetic shape memory alloys, especially, the prototype Ni-Mn-Ga alloys possessing a Heusler structure, are promising for magnetic cooling applications since they demonstrate high sensitivity of martensitic transformation to the magnetic field. In this work, the Ni50Mn28Ga22 (at.%) particles, exhibiting a single 5-modulated (5M) martensite phase, were utilized for the fabrications of the sandwich-structured Ni-Mn-Ga particles/Cu foil laminated composites. Anisotropic magnetic properties, characterized by easy-direction and hard-direction, were found in-plane and out-of-plane of laminate, respectively. Magnetic field-induced shape deformation of laminated composites was also unveiled on both macro- and micro-scales at the magnetic field range from 0 to 1.5 T by using optical microscopy and X-ray computed tomography (micro-CT) imaging. The magnetization behaviors of composites were studied in detail. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Computational Materials Science & Engineering, Magnetic Materials |