Matches in SemOpenAlex for { <https://semopenalex.org/work/W4380422181> ?p ?o ?g. }
- W4380422181 abstract "Metamagnetic shape memory alloys (MMSMAs) are attractive functional materials owing to their unique properties such as magnetostrain, magnetoresistance, and the magnetocaloric effect caused by magnetic-field-induced transitions. However, the energy loss during the martensitic transformation, that is, the dissipation energy, Edis , is sometimes large for these alloys, which limits their applications. In this paper, a new Pd2 MnGa Heusler-type MMSMA with an extremely small Edis and hysteresis is reported. The microstructures, crystal structures, magnetic properties, martensitic transformations, and magnetic-field-induced strain of aged Pd2 MnGa alloys are investigated. A martensitic transformation from L21 to 10M structures is seen at 127.4 K with a small thermal hysteresis of 1.3 K. The reverse martensitic transformation is induced by applying a magnetic field with a small Edis (= 0.3 J mol-1 only) and a small magnetic-field hysteresis (= 7 kOe) at 120 K. The low values of Edis and the hysteresis may be attributed to good lattice compatibility in the martensitic transformation. A large magnetic-field-induced strain of 0.26% is recorded, indicating the proposed MMSMA's potential as an actuator. The Pd2 MnGa alloy with low values of Edis and hysteresis may enable new possibilities for high-efficiency MMSMAs." @default.
- W4380422181 created "2023-06-14" @default.
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- W4380422181 date "2023-06-12" @default.
- W4380422181 modified "2023-09-30" @default.
- W4380422181 title "Pd<sub>2</sub>MnGa Metamagnetic Shape Memory Alloy with Small Energy Loss" @default.
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- W4380422181 doi "https://doi.org/10.1002/advs.202207779" @default.
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