Determination of temperature dependence of piezoelectric coefficients matrix of lead zirconate titanate ceramics by quasi-static and resonance method

摘要

The piezoelectric coefficients (d(33), -d(31), d(15), g(33), -g(31), g(15)) of soft and hard lead zirconate titanate ceramics were measured by the quasi-static and resonance methods, at temperatures from 20 to 300 degrees C. The results showed that the piezoelectric coefficients d(33), -d(31) and d(15) obtained by these two methods increased with increasing temperature for both hard and soft PZT ceramics, while the piezoelectric coefficients g(33), -g(31) and g(15) decreased with increasing temperature for both hard and soft PZT ceramics. In this paper, the observed results were also discussed in terms of intrinsic and extrinsic contributions to piezoelectric response.