Galfenol (a family of Fe-Ga alloys) has been shown to have excellent magnetostriction, while maintaining mechanical properties similar to Fe.[1] Galfenol is more resistant to corrosion than Fe, is magnetically soft, and has a relatively low cost. [2] In addition to its mechanical properties, Galfenol's other advantage over Terfenol-D (currently the most popular magnetostrictive material) is that magnetostriction can be obtained even at low applied magnetic fields due to a high magnetic permeability. [3] Therefore, Galfenol can be used for applications such as microelectromechanical systems, sensors and actuators. Therefore, thin films of Galfenol are beginning to attract attention.
展开▼
