Effect of Temperature on the Dielectric Properties of 0-3 PZT-Cement Composites

Abstract

In this work, 0-3 lead zirconate titanate (PZT) was mixed with normal Portland cement to produce 0-3 connectivity composites. The effect of temperature on the dielectric properties such as the dielectric constant and dielectric loss was determined. It was found that with increasing PZT content the T_c increases where the optimum dielectric constant was observed and that at the temperature up to 100°C there is a significant change in the dielectric properties in PZT-cement composites. This is due to the loss of water molecules at up to 100°C. At above 100°C, the dielectric properties of the composites were found to have a similar behavior to that of PZT ceramic with T_c being ≈420°C.

Keywords:

• PZT
• cement
• composites
• dielectric properties
• temperature

Acknowledgments

The authors are grateful to members of staff at the Electroceramics Research Laboratory for the research facilities made possible for this research work and also to the Thailand Research Fund (TRF) and the Commission on Higher Education (Thailand) for financial support.

Communicated by Dr. George W. Taylor