PIEZOELECTRIC AND PYROELECTRIC PROPERTIES OF PZT: SILICONE RESIN COMPOSITES IN 0-3 CONNECTIVITY

摘要

In this paper, an attempt has been made to study Piezoelectric and Pyroelectric properties of PZT: Silicone resin composites in 0-3 connectivity. For this PZT was prepared by the conventional oxide route. The samples were prepared by mixing sintered PZT powder of fine particle size (1-3 urn) in silicone resin. Results show that the densities of composite (PZT/Silicone Resin) were progressively higher with respect to higher ratios of PZT. Also, it is clear that although the d_(33) values increases steadily with the increase of PZT in the composite, the piezo figure of merit which is the parameter looked for when designing a sonar system, shows a peak at 40% PZT, implying that composition to be best suited for transducer application, this is due to the fall in e accompanied by a fall in the numerical value of d_(31). Value of d_h and g_h is definitely not the highest for 40% composites but due to the low value of Z (acoustic impedance), the material gains suitability for the application.