Sánchez-Alarcos Gómez, VicenteKhanna, DeepaliLa Roca, Paulo MatíasRecarte Callado, VicenteLambri, Fernando DanielBonifacich, Federico GuillermoLambri, Osvaldo AgustínRoyo Silvestre, IsaacUrbina Yeregui, AntonioPérez de Landazábal Berganzo, José Ignacio2024-10-072024-10-072024-09-06Sánchez-Alarcos, V., Khanna, D. L. R., La Roca, P., Recarte, V., Lambri, F. D., Bonifacich, F. G., Lambri, O. A., Royo-Silvestre, I., Urbina, A., Pérez-Landazábal, J. I. (2024) Polycaprolactone/MSMA composites for magnetic refrigeration applications. Polymer Composites, 1-11. https://doi.org/10.1002/pc.289970272-839710.1002/pc.28997https://academica-e.unavarra.es/handle/2454/52009A high filling load (62% weight) printable magnetic composite has been elaborated from the dispersion of magnetocaloric Ni45Mn36.7In13.3Co5 metamagnetic shape memory alloy microparticles into a PCL polymer matrix. The composite material has been prepared by solution method, resulting in a very homogeneous particles dispersion into the matrix. The structural transitions in the polymer are not affected by the addition of the metallic microparticles, which in turn results in a significant increase of the mechanical consistency. The good ductility of the elaborated composite allows its extrusion in flexible printable filaments, from which 3D pieces with complex geometries have been grown. The heat transfer of the composite material has been assessed from finite element simulation. In spite of the achievable magnetocaloric values are moderated with respect to the bulk, numerical simulations confirm that, in terms of heat transference, a PCL/Ni-Mn-In-Co wire is more efficient than a bulk Ni-Mn-In-Co cubic piece containing the same amount of magnetic active material. The quite good magnetocaloric response of the composite and the possibility to print high surface/volume ratio geometries make this material a promising candidate for the development of heat exchangers for clean and efficient magnetic refrigeration applications.application/pdfeng© 2024 The Author(s). This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License.Fused deposition modelingMagnetic compositeMagnetic refrigerationMetamagnetic shapememory alloyPolycaprolactoneinfo:eu-repo/semantics/article2024-10-07info:eu-repo/semantics/openAccess