Functional PZT piezoelectric ceramics material

Functional PZT piezoelectric ceramics material

Piezoelectric ceramics are polycrystalline ceramics obtained by mixing high-temperature sintering of solid oxides (zirconium oxide, lead oxide, titanium oxide, etc.) and solid-state reaction. Piezo ceramic discs for milk analysis have a piezoelectric effect through DC high voltage polarization treatment. The general name is a functional ceramic material that can convert mechanical energy and electrical energy to each other . Because of its good mechanical properties and stable piezoelectric properties, piezoelectric ceramicsas an important force, heat, electricity, light sensitive for ultrasonic fuel level meter functional materials have been widely used in sensors, ultrasonic transducers, micro-displacement devices and other electronic components. With the continuous research and improvement of materials technology, information, aerospace and other high-tech fields .With the rapid development, the production technology and application development of piezoelectric ceramics have high intelligence. new materials of mechanical transducer piezo disc is a hot topic that people pay attention to.

According to the number of independent components in the material, piezoelectric ceramics can be divided into elementary piezo ceramic cylinder, binary, ternary and multi-element piezoelectric ceramics. BaTiO3 is a typical one-element ceramic ferroelectric with perovskite crystal structure. It is insoluble in the water, piezoelectric transducer manufacturers has large electromechanical coupling coefficient, simple preparation process, and low cost. It is the earliest practical piezoelectric ceramic. In order to obtain more stable piezoelectric ceramics with higher curie temperature, Ti4 + ion radius and Zr4 piezo rings with silver electrodes have been found. With the similar radio and similar chemical properties of both ions, PbTiO3 and PbZrO3 can form continuous solid solutions in any ratio.