AN ELECTROSTRICTIVE CERAMIC MATERIAL INCLUDING A PROCESS FOR THE PREPARATION THEREOF AND APPLICATIONS THEREFOR.

摘要

This invention relates to a new ceramic electrostrictive compositions having superior electrical properties, a process for the preparation of the new electrostrictive compositions and applications for the new compositions. Specifically, a solid solution composition of lead magnesium niobate - lead titanate - (barium titanate or strontium titanate) has exhibited desirable electrostrictive properties. This composition shows a diminished dependence of dielectric constant on temperature.