Abstract
To determine the collision fatigue limit for piezoelectric ceramics, an electrical nondestructive method was suggested. The materials show large changes in electrical potential induced by pressure on the collision. Measurements on this type of material found a relationship between the maximum value of electrical potential (Vm) and supplied collision energy (Ecs) below the collision fatigue limit. It was expressed by the following simple equation.
Vm = 9.5(Ecs)0.5
Applying the critical differential electrical potential (Vc = 4 V), we confirmed that the collision fatigue limit was nondestructively determined for PZT materials.
