Developed a functionally graded piezoelectric actuators

Commonly used in the current construction of a piezoelectric single-, dual-chip driver at the interface between the layers stress concentration, resulting in the adhesive layer easily at a low temperature cracking, creep under high temperature, air circuit breaker  the life of the component. With different performance series PNN-PZ-PT material developed a functionally graded piezoelectric drive can overcome these  electric meter . In order to make a functionally graded piezoelectric drive gets large bending deflection, we need to high-voltage, low Voltage stabilizer  high strain piezoelectric material and low voltage, high dielectric properties combined with low strain piezoelectric material, and properties of the material composition and changes in the thickness direction of the gradient.