Abstract
Vibration-level characteristics of electromechanical properties in the pseudo-ternary solid solution system PbZrO3-PbTiO3-Pb(Mn1/3Sb2/3)O3 ceramics were studied using a constant current control method. Stability under a vibration-level change was determined from the measurements of Young's modulus Y0 E and mechanical dissipation factor Q m-1. Durability degree for a high vibration-level excitation was estimated by a heat generation phenomenon. The durability was found to be dependent on the stability. As the stability increased, the durability also increased. The durability degree for a high vibration-level excitation was improved in the pseudo-ternary solid solution system PbZrO3-PbTiO3-Pb(Mn1/3Sb2/3)O3 ceramics over the binary solid solution system PbZrO3-PbTiO3 ceramics.