|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Advanced Magnetic Materials: An FMD Symposium in Honor of Michael E. McHenry
||Magnetic Field Induced Large Strain by Reversible Phase Transformation on Metamagnetic Shape Alloys
||Ali Sadi Turabi, Haluk Ersin Karaca, Merivan Sasmaz, Volodymyr Chernenko, Yury Chumlyakov
|On-Site Speaker (Planned)
||Ali Sadi Turabi
Magnetic shape memory alloys (MSMAs) have considerable attention as actuators, magnetic refrigerators and energy harvester applications due to their magnetocaloric effect, high frequency response and large actuation strains. Ni-Mn-X (X: In, Sn, Sb) metamagnetic alloys exhibit giant magnetoresistance and large inverse magnetocaloric effect due to large magnetization difference between the transforming phases. They demonstrate magnetic field induced phase transformation (FIPT) which relies on the Zeeman energy as a magnetic driving force. Magnetization strongly depends on the Mn-Mn interatomic distance in these alloys. Thus, increasing the Mn content is promising to have higher saturation magnetization which alters Zeeman energy.
Since metamagnetic shape memory alloys concurrently undergo both magnetic and structural phase change, magneto-thermo-mechanical characterization is needed to reveal magnetic and shape memory properties for practical application. Experimental results of NiMn based metamagnetic shape memory alloys in single and polycrystalline form will be presented.
||Planned: None Selected