Applied Physics Letters · 2003 · 272 citations · 12 references
Natural SciencesMaterials EngineeringMaterials ScienceMetallurgyPhase TransformationsSolid State PhysicsAlloysCurie TemperatureFerromagnetic MaterialsFerromagnetismMartensitic TransformationsMetalsHeusler AlloysShape MemoryShape Memory EffectsShape-memory AlloysStrain-induced Martensitic TransformationTextured MaterialsThermoelastic Martensitic TransformationThermoelastic Transformation
We have synthesized ferromagnetic Heusler alloy Ni2FeGa using the melt-spinning technique. The Ni2FeGa ribbon, having a high chemical ordering L21 structure, exhibits a thermoelastic martensitic transformation from cubic to orthorhombic structure at 142 K and a premartensitic transformation. The alloy has a relatively high Curie temperature of 430 K, a magnetization of 73 Am2/kg, and a low saturated field of 0.6 T. The textured samples with preferentially oriented grains show a completely recoverable two-way shape memory effect with a strain of 0.3% upon the thermoelastic martensitic transformation.
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Large magnetic-field-induced strains in Ni2MnGa single crystals
K. Ullakko, Junjie Huang, C. Kantner et al. · Applied Physics Letters · 1996 · 2.6K citations
Magnetic order and phase transformation in Ni<sub>2</sub>MnGa
P. J. Webster, K.R.A. Ziebeck, S.L. Town et al. · Philosophical Magazine B · 1984 · 1.2K citations
Promising ferromagnetic Ni–Co–Al shape memory alloy system
Katsunari Oikawa, L. Wulff, Takashi Iijima et al. · Applied Physics Letters · 2001 · 357 citations · Full text
Natural Sciences, Materials Engineering, Materials Science +17