The investigation of magnetostriction of different phases in Fe-Co alloys

Anisotropy in magnetic materials for sensors and actuators in soft robotic systems

“…64 Conversely, Fe 20 Co 80 alloys are in the fcc phase for a positive λ si or bcc phase for a negative λ si depending on the fabrication methods. 65 If a magnetic material has a positive λ si , it will elongate during magnetization. This implies that applying a tensile stress to lengthen the material ( λ si σ > 0) increases the magnetization of the material, which facilitates the formation of a preferential orientation of the easy axis.…”