Title :
Propagation of pure shear surface waves in magnetostrictive polycrystalline ferrites
Author :
Ermolov, Vladimir ; Luukkala, M.
Author_Institution :
Moscow Eng. Phys. Inst., Russia
Abstract :
The launching and propagation of pure shear surface waves (SSW) in magnetostrictive polycrystalline ferrite were studied. The results show that SSW have lower sensitivity to surface quality than Rayleigh waves, but the launching effectiveness by a meander-type transducer is lower than for Rayleigh waves. The variation in phase velocity of SSW on a magnetic field was 4.5%, which can be of interest in applications.
Keywords :
acoustic materials; ferrites; magnetoacoustic effects; magnetostriction; surface acoustic waves; surface magnetism; SSW phase velocity; magnetic field; magnetostrictive polycrystalline ferrites; meander-type transducer; shear surface waves; Ferrites; Magnetic field induced strain; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetic resonance; Magnetostriction; Surface acoustic waves; Surface waves; Tensile stress;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
