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A novel 1-1-3 type composite is proposed to increase the electromechanical coupling coefficient. Relaxor ferroelectric single crystal is cut into columns and surrounded by soft polymer. The other kind of hard polymer is manufactured to form a 3D grid structure. The relaxor ferroelectric single crystal and soft polymer are located in lattice of the hard polymer. The single crystal and soft polymer...
1-3-2 composite is made of 1-3 composite and ceramic base. The influence of piezoelectric phase volume fraction and composite aspect (thickness/width) on resonance characteristic of square 1-3-2 piezoelectric composite plate has been researched in ANSYS. The resonance frequency of 1-3-2 composite samples was investigated. The result shows that when the volume fraction of ceramic rods is about 0.46...
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