Piezoelectric ceramics function by utilizing the relative displacement of internal positive and negative charge centers caused by mechanical stress, resulting in bound charges with opposite signs on the surfaces at either end of the material—this is known as the piezoelectric effect. Piezoelectric Rings, for example, are commonly used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic devices, and piezoelectric gyroscopes. These applications are not only prevalent in high-tech fields but also improve everyday life.
In the electronic industry, ceramics that utilize their electrical and magnetic properties are referred to as electronic ceramics. These materials, including Industrial Piezoelectric Ceramic Sheets, achieve new functionalities through precise control of surface, grain boundary, and size structures. They are extensively used in sectors such as energy, household appliances, and automotive industries.
The development of electronic ceramic materials is closely intertwined with advancements in physical chemistry, applied physics, silicate physical chemistry, solid-state physics, optics, electricity, acoustics, and radio electronics, all of which drive each other forward. Consequently, as electronic technology rapidly advances, significant progress has been made in the field of electronic ceramics.
Electronic ceramics can be categorized into five types based on their functions and uses: insulating device ceramics, capacitor ceramics, ferroelectric ceramics, semiconductor ceramics, and ionic ceramics.
