Piezoelectric lead zirconate titanate coatings on metallic wires

Acoustic measurements of thin piezoelectric lead zirconate titanate (PZT) films coated on metallic wires are presented. These experiments have demonstrated that PZT coatings fabricated by a sol-gel process can be not only coated on curved metal substrates for high-frequency focused ultrasonic transducer applications, but also on metallic wires with a long coating length for low-frequency acoustic vibrators.