[PDF] Top 20 Shape Memory Behavior of Ni Mn Ga Sputtered Films under a Magnetic Field

... 3.2 Shape memory behavior by thermal change The photographs in ...the shape change of the sputtered film, ...two-way shape memory effect by the temperature change during ... See full document

... a magnetic- field induced SME due to the large gradient and small thermal hysteresis in the strain–temperature ...the magnetic field was investigated at constant temperature. The shape memory ... See full document

... The field lines tend to change their direction inside the MSM element experiencing further bending on twin ...the magnetic field vectors in a multi-variant MSM region have both horizontal x- and ... See full document

... TWME has been ascribed to the relaxation of inhomogeneous stress fields in the parent phase by the formation of the pref- erentially oriented variants. The inhomogeneous stress fields will be generated for precipitates, ... See full document

... system Ni-Mn-Ga are type Heusler structure ...the shape memory ...the magnetic field in the ferromagnetic alloys, has been of growing interest in the development and/or ... See full document

... ferromagnetic shape-memory Ni-Mn-Ga for implementation in actuator applications originates from the fact that this class of materials exhibits large strains when driven by a ... See full document

... ferromagnetic shape memory alloys have been carried out: Fe–Pd [10], Fe–Pt [11], Ni–Mn–Al [12], and Co–Ni–Al [13, 14] in order to find out new alternative materials with lower ... See full document

... driven under collinear field-stress ...higher Mn content is orthorhombic rather than tetragonal ...the shape memory martensitic transformation temperature is nearly coincident with the ... See full document

... of field-induced genera- tion of the full extensional strain associated with the crystal- lographic distortion in a ferromagnetic shape memory ...of Ni–Mn–Ga. The strain is ... See full document

... of Magnetic Shape Memory alloys including the magneto-thermo-mechanical ...the magnetic circuit creating the magnetic field and a dynamical load applied to the MSMA ... See full document

... demagnetizing field, a measurement of the sample’s magnetization behavior was ...the magnetic properties of the material without the possibility of twin ...be magnetic easy ...a ... See full document

... Ferromagnetic shape memory martensites in the Ni-Mn-Ga system have been demonstrated to achieve a number of the criteria required for next generation actuators including the production ... See full document

... Fe–24 at%Pt and Fe–29.9 at%Ni alloys were produced by melting the component metals in a high frequency induc- tion furnace under argon atmosphere and casting into a wa- ter cooled iron mold. An ordering ... See full document

... superplastic behavior has been reported in several Cu-Al and Cu-Zn ...Cu-based shape memory alloys, superplasticity has already been reported ... See full document

... Two single crystals were grown at the Ames Laboratory. Appropriate quantities of nickel 共 99.99% pure 兲 , electronic grade gallium 共 99.999% 兲 , and electrolytic manganese 共 99.9% 兲 were cleaned and arc melted several ... See full document

... Recently, Ni–Mn–Ga based ferromagnetic shape memory alloys have attracted considerable attention partly because they are typical example to investigate the relationship be- tween the ... See full document

... superelastic behavior of the coil springs of the Ti-Ni shape memory alloy, the loading-unloading cycling tests were carried out under isothermal ...the Ni content, and the ... See full document

... Figures 9 and 10 show the series of stress-strain curves for the Ti-6Mo-3Ga alloys which were annealed at 1273 K for 3.6 ks and annealed at 1073 K for 120 s, respectively. The residual strain after unloading was ... See full document

... Four shape memory alloys of Cu-Zn-Ni, in the range of 35 - 55 wt% of Cu, 43 - 60 wt% Zn and 2 - 9 wt% Ni, were prepared by ingot metallurgy route in an induction furnace under an inert ... See full document

... 10 ml of ZnO growth layer solution was individually mixed into cobalt and manganese mixture and stirred for 2 hours. Cobalt and Manganese doped ZnO thin films were grown on ZnO seed coated glass substrates by ... See full document