| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Magnetism and Magnetic Materials
|
| Presentation Title |
Additive Manufacturing of Thin-walled Magnetocaloric Regenerator Structures for Heat Pump Applications |
| Author(s) |
Radhika Barua, Vaibhav Sharma |
| On-Site Speaker (Planned) |
Radhika Barua |
| Abstract Scope |
Magnetic heat pumping (MHP) is a sustainable and energy-efficient alternative to conventional vapor-compression technology. A key challenge in manufacturing MHPs is shaping brittle caloric alloys into thin-walled regenerator structures for efficient heat transfer between the solid refrigerant and the heat exchange fluid in an active magnetic regenerator (AMR) device. This presentation focuses on magnetic-field-assisted extrusion-based additive manufacturing (AM) methods to 3D print porous structures with high surface area and complex architectures using commercially viable magnetocaloric powders of nominal composition La0.4Ca0.6MnO3, AlFe2B2 and LaFe11.6Si1.2Mn0.2. The impact of different process parameters, such as powder characteristics (size distribution, morphology, flowability), printing ink viscosity, and sintering conditions (temperature and time), on the magnetofunctional response of the densified magnetocaloric structures will be discussed comprehensively. Overall, this study offers strategies for creating low-cost, functionally graded magnetic regenerators, potentially eliminating a significant barrier to the commercialization of MHP technology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnetic Materials, Additive Manufacturing, Energy Conversion and Storage |