|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials: An FMD Symposium in Honor of Michael E. McHenry
||Caloric Effects in Ni-Mn-Sn Ribbons
||Christian Omar Aguilar Ortiz, Juan Pablo Camarillo, Daniel Soto-Parra, Pablo Álvarez-Alonso, Elena Villa, Daniel Salazar, Horacio Flores-Zúńiga, José Manuel Barandiarán, Volodymyr Chernenko
|On-Site Speaker (Planned)
Ferromagnetic shape memory alloys have attracted much attention because their potential use in practical applications, due to giant magnetic-field-induced strain. Recently, the so-called metamagnetic shape memory alloys -mainly off-stoichiometric Ni2MnSn- have stood out due to their remarkable features associated to the martensitic transformation (MT), among them, caloric effects produced by magnetic and/or mechanical fields.
We have produced Ni50Mn40-xFexSn10 melt-spun ribbons to study the effect of Fe substitution on the MT and their elastocaloric and magnetocaloric effects. As-spun ribbons transform from a paramagnetic orthorhombic 4M martensite to a ferromagnetic cubic austenite with TM decreasing from 430 K down to 275 K for x = 0 and 8 respectively. A maximum of the magnetic entropy change of 11.0 Jkg-1K-1 has been obtained for x = 8 under a magnetic field change of 5 T. For Ni50Mn40Sn10, the maximum elastic entropy change was 0.8 Jkg-1K-1 for 15 MPa.
||Planned: None Selected