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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Liang, Jierong
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
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conferencepaper
Magnetocaloric Heat Exchangers by Laser Powder Bed Fusion
Abstract
Magnetocaloric materials, which change their temperature when brought into a changing magnetic field, have the potential to enable innovative cooling and heating technologies. To attain highly efficient systems, fast and high heat transfer from the magnetocaloric material has to be achieved. It was shown that by Laser Powder Bed Fusion (LPBF), it is possible to shape brittle intermetallic La(Fe,Si)<sub>13</sub>-based alloys to microchannel- or plate-like-structures with a minimum wall thickness of 300 μm. Additionally, the refined microstructure resulting from the LPBF process enables shortening the heat treatment time to optimize the magnetocaloric properties, and mixing La(Fe,Si)13 and LaCe(Fe,Mn,Si)<sub>13</sub> powder for the LPBF process is an effective way to adjust the composition and hence the temperature of maximum magnetocaloric effect. Results on the magnetocaloric properties as well as considerations regarding the optimization of the heat exchanger geometry and the influence of the surface roughness will be presented.