Phase states and electrophysical properties of multicomponent perovskite solid solutions on the base of PMN-PT and PZT systems

Abstract

Phase diagrams were constructed (at room temperature), the dielectric, piezoelectric, elastic and reversible properties of the Ge-modified xPbTiO3–yPbZrO3–zPbNb2∕3Mg1∕3O3 multicomponent system ceramics were studied. The data obtained are compared with the results of studies of solid solutions of basic binary systems, as well as with the results obtained previously for other sections of the system under consideration. A significant increase in the width of the morphotropic region, diffusion of the concentration dependences of the electrophysical characteristics, and an increase in stability under the influence of constant bias fields in the solid solutions of the studied system were established.

Keywords

• ferroelectrics
• ceramics
• multicomponent system
• phase diagrams
• piezoelectric properties