Introduction of the piezoelectric ceramics

Introduction to piezoceramics


Introduction of the piezoelectric ceramics

Products utilizing a piezoelectric phenomenon or ultrasonic known from ancient are present in a familiar daily life. Further, up to the medical and automotive or home electronics, piezoceramics products is used in various industrial fields. Piezoceramics itself is present in the interior of various devices. It does not meet one’s eyes. Piezoelectric ceramics having various applications is a material that transmutable pressure and electric mutually. Apply the strain, electrical output will arise. Apply the electrical input, elastic will arise. Also, make use of the mechanism by which these effects are mutual transformation.
Fuji ceramics is a consistent process through to production from research and development.
Select the rich material group of piezoceramics, and provides a piezo products that is appropriate for a variety of applications.

Mechanism of energy transformation of the piezoceramics

Electrical energy transduction from mechanical energy Mechanical energy transduction from electrical energy

Materials of piezoelectric ceramics

Lead zirconate titanate〔Pb(Zr・Ti)O3〕 which exhibit large piezoelectricity among the piezoelectric ceramics are generally referred to as PZT. Is a ferroelectric having a crystal structure referred a perovskite. Lead titanate〔PbTiO3〕and lead zirconate〔PbZrO3〕is the basic composition. By changing the mixing ratio of the two components, it can control the piezoelectric, dielectric, elasticity and other physical properties. Then, the piezoceramics material suitable for applications, those can manufacture. Piezoelectric material, it is a big feature of reversibly transform the electrical energy and mechanical energy. In the PZT material with its features, in addition to the soft and hard materials, it provides lead titanate〔PbTiO3〕, lead metaniobate〔PbNb2O6〕, and the piezoceramic elements of bismuth titanate〔Bi4Ti3O12〕.