Magnetic Strains
نویسندگان
چکیده
منابع مشابه
Myocardial strains from 3D displacement encoded magnetic resonance imaging
BACKGROUND The ability to measure and quantify myocardial motion and deformation provides a useful tool to assist in the diagnosis, prognosis and management of heart disease. The recent development of magnetic resonance imaging methods, such as harmonic phase analysis of tagging and displacement encoding with stimulated echoes (DENSE), make detailed non-invasive 3D kinematic analyses of human m...
متن کاملMagnetic-field-induced strains and magnetic properties of Heusler alloy Ni52Mn23Ga25
Large magnetic-field-induced strain ~MFIS! of 22700 ppm has been obtained from the Heusler alloy Ni52Mn23Ga25 at 300 K. The temperature for structure transformation was confirmed by three types of magnetic measurements. A burst of MFIS up to 5400 ppm could be induced by rotating a steady field of 1 T. In the martensitic phase, the material have a high saturated magnetization of 66 Am/kg and a h...
متن کاملMagnetic-Field Induced Strains in Ferromagnetic Shape Memory Alloy Ni55Mn23Ga22 Deposited by RF-Magnetron Sputtering
1.5mm–Ni55Mn23Ga22 ferromagnetic thin films were deposited onto silicon substrates and silicon single beam cantilever using radio-frequency magnetron sputtering. As-deposited sample and heat-treated thin films were studied on their silicon substrates and peeled off to determine the influence of the stress. Post-heat treatment process allows at the films to achieve the shape memory effect (SME)....
متن کاملGiant magnetic-field-induced strains in Heusler alloy NiMnGa with modified composition
A giant magnetic-field-induced strain ~MFIS! of 23100 ppm has been obtained in Heusler alloy Ni52Mn22.2Ga25.8 single crystal in the @001# direction at a temperature from 23 to 31 °C. This MFIS reaches saturation in an applied field about 6 kOe, and exhibits the same amplitude with an opposite sign while the field is perpendicular to the samples. According to a previous model, this MFIS associat...
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ژورنال
عنوان ژورنال: Nature
سال: 1888
ISSN: 0028-0836,1476-4687
DOI: 10.1038/038224a0