1–3 piezoelectric composites for high-temperature transducer applications

1-3 Piezoelectric Composites for High Power Ultrasonic Transducer Applications

In this paper, we demonstrated that 1-3 PZT/polymer composites, fabricated using PZT-4 ceramic and a polymer possessing a high glass transition temperature and low loss, can be used as high power ultrasonic transducer materials for high intensity focused ultrasound (HIFU) applications. The mechanical quality factor of the 1-3 composite with 64% ceramic volume fraction is over 200. The dielectri...

High-sensitivity piezoelectric perovskites for magnetoelectric composites

A highly topical set of perovskite oxides are high-sensitivity piezoelectric ones, among which Pb(Zr,Ti)O3 at the morphotropic phase boundary (MPB) between ferroelectric rhombohedral and tetragonal polymorphic phases is reckoned a case study. Piezoelectric ceramics are used in a wide range of mature, electromechanical transduction technologies like piezoelectric sensors, actuators and ultrasoun...

High-Temperature Piezoelectric Sensing

Piezoelectric sensing is of increasing interest for high-temperature applications in aerospace, automotive, power plants and material processing due to its low cost, compact sensor size and simple signal conditioning, in comparison with other high-temperature sensing techniques. This paper presented an overview of high-temperature piezoelectric sensing techniques. Firstly, different types of hi...

Horn-Type Piezoelectric Ultrasonic Transducer: Modelling and Applications

Development of High-Performance BS-PT Based Piezoelectric Transducers for High-Temperature Applications

This paper focuses on the development of the new BiScO3-PbTiO3 (BS-PT) based piezoelectric ceramic transducers for high-temperature SHM applications. By controlling the PbO deficiency in the material system, we modify the lossy ferroelectric properties and enhance the piezoelectric responses from the intrinsic BSPT. The new in-house fabricated piezoelectric transducers can maintain comparably h...