Chemical Engineering - Chemical Engineering Basics - Discussion

Thanks, @Ratan Chandra.

Piezoelectric materials have the special property of producing an electrical voltage in response to an applied force. Usually crystals or ceramics, piezoelectric materials have a variety of uses including sonar, sound detection and high-voltage generation in addition to everyday uses, such as cigarette lighter ignition sources and barbecue-grill igniters.

How to Use Piezoelectricity to Make Electricity.

How Does a Piezo Actuator Work?

What Is Piezoelectricity?

Piezoelectricity, derived from the Greek word piezo, meaning to squeeze or press, is an electric charge that accumulates in certain materials such as crystals, ceramics and bone, when a stress or strain is applied to the material. Materials demonstrating the piezoelectric effect also show the opposite effect called converse piezoelectric effect. This means a piezoelectric material becomes deformed, as if undergoing stress, when being exposed to an electrical field. Put briefly, piezoelectric materials create electricity when stress is applied, and become stressed when electricity is applied History.

Initially demonstrated in the lab in 1880, the first practical applications for piezoelectric materials were not developed until 1917 during World War I. The very first application was for sonar used to detect submarines with sound waves. After this success, interest in piezoelectric applications grew and by World War II, man-made piezoelectric materials were being constructed and used in aviation radios, filters for radio and television signals and everyday applications, such as small engine igniters.