Effect of Volume Fraction of NiMnGa Powders on Magnetic-Field-Induced Strain in NiMnGa/Polymer Composites

Polymer composites inserted with high volume fraction of NiMnGa powders were fabricated and their magnetic-field-induced strain (MFIS) was investigated. It is found that MFIS of NiMnGa/polymer composites increases with the increase of volume fraction of NiMnGa powders in composites. Large MFIS of 950 ppm has been obtained along the orientation magnetic field while only 220 ppm was on the perpendicular orientation magnetic...