Microstructure engineering of metamagnetic Ni-Mn-based Heusler compounds by Fe-doping
A roadmap towards excellent cyclic stability combined with large elastocaloric and magnetocaloric effects
2021/10/27
Lukas Pfeuffer, Jonas Lemke, Navid Shayanfar, Stefan Riegg, David Koch, Andreas Taubel, Franziska Scheibel, Nagaarjhuna A. Kani, Esmaeil Adabifiroozjaei, Leopoldo Molina-Luna, Konstantin P. Skokov and Oliver Gutfleisch
Acta Materialia 221, 117390 (2021).
Ni-Mn-based metamagnetic shape-memory alloys are highly promising for solid-state caloric cooling applications but commonly exhibit structural and functional fatigue during cyclic operation. In this work, we present exemplarily for Ni-Mn-In a microstructure design which allows to achieve excellent cyclic stability together with large magnetocaloric and elastocaloric effects.
