What is the definition of piezoelectric effect? Certain materials which is known as piezoelectric materials has got the property that it can generate electric field when they are subjected to any kind of mechanical stress.
Due to mechanical stress, it causes shifting of negative and positive ions in its crystal structure and as a result electrical currents are developed. This word Piezo is a Greek word and it means press, squeeze or push. Another specialty of this material is that it also generates mechanical energy when electrical field is applied to it.
Multiple products for piezoelectric are available. It is very commonly used for detection of high voltage generation, sound, microbalances, electronic frequency generation etc. Number of scientific instruments use this material for measuring atomic resolution, scanning probe microscope etc. Even in number of consumable products, such materials are used.
Let’s get to know the brief history of this material. It was first time discovered in 1880, by two brothers called Pierre and Jacques Curie. Its first use was made during First World War when the naval force used it for detecting the presence of submarines. This was called sonar device. It created lots of interest in this material and subsequently many other applications were explored regarding this material.
There are number of natural as well as man-made materials that exhibit piezoelectric characteristics. Natural materials are Berlinite, quartz, topaz, Rochelle salt, cane sugar, dry bone and tourmaline. Man-made materials are lead zirconate titanate and barium titanate.
Due to recent concern about environment related issues many more man-made piezoelectric materials that are environmentally safe are under development.