Mon, December 16, 2019   Advanced Search

Piezoelectric and Pyroelectric Studies of PCZT Ceramics

Ajay Kumar Rakesh

Department of Physics, M.M.H. (P.G.) College Ghaziabad, C.C.S. University, Meerut, U.P., INDIA.

ABSTRACT

In this paper, an attempt has been made to study piezoelectric and pyroelectric properties of calcium modified Lead Zirconate Titanate (PCZT) ceramics. For this, PZT was prepared by the conventional oxide route. The samples of Ca2+ modified PZT i.e., PCZT were used in this study. Results shows that although the d33 values decreases steadily with the increase of Ca in the ceramic, the piezo figure of merit which is the parameter looked for when designing a sonar system, shows a peak at 6% Ca, implying that composition to be best suited for transducer application, this is due to the fall in ε accompanied by a fall in the numerical value of d31. Also results show that for piezo detectors, PCZT with 6% Ca is the ideal candidate while 4% Ca PCZT is the best material for pyroelectric detectors.

Keywords : Polycrystalline, Solid state reaction, Ceramic, Piezoelectric and Pyroelectric Coefficients.