Study of Non-Homogeneity of Magnetic Field Distribution in Single-Crystal Ni-Mn-Ga Magnetic Shape Memory Element in Actuators Due to Its Anisotropic Twinned Microstructure

• Published in: IEEE transactions on magnetics Vol. 53; no. 3; pp. 1 - 8
• Main Authors: Gabdullin, N., Khan, S. H.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.03.2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuator design; Actuators; Anisotropy; Demagnetization; Electromagnetic analysis; Finite element analysis; Gallium; magnetic anisotropy; Magnetic fields; Magnetic permeability; magnetic shape memory (MSM) alloys; Magnetism; Manganese; Martensite; Martensitic transformations; Mathematical model; Microstructure; MSM actuators; Nickel; non-homogeneous permeability; Perpendicular magnetic anisotropy; Shape; Shape effects; Shape memory; Shape memory alloys; Single crystals

Magnetic shape memory (MSM) alloys are relatively new and very promising "smart" materials that respond to magnetic fields and exhibit the shape memory effect at room temperature. Maximum strain varies from 6% to 12% of the MSM element's length depending on its microstructure. The sha...