Piezoelectric materials are crystalline materials that generate a voltage between their two ends when pressure is applied. In 1880, French physicists P. Curie and J. Curie brothers discovered that when a heavy object is placed on a quartz crystal, some surfaces of the crystal will generate charges,

Mechanical properties Piezoceramic materials are materials with good rigidity and high hardness among engineering materials, and their hardness is mostly above 1500HV. Ceramics have high compressive strength, but low tensile strength, poor plasticity and toughness. thermal properties Ceramic mater

Polarization of piezoelectric ceramics Before the piezoelectric ceramic material is not polarized, the free electrons are arranged in disorder; after the polarization treatment, remanent polarization is generated along the polarization direction to become an anisotropic polycrystal, the free electro

Piezoelectric ceramics are artificial polycrystalline piezoelectric materials. The crystal grains inside the material have many spontaneously polarized electric domains, which have a certain polarization direction, so that there is an electric field. When there is no external electric field, the el

One is inorganic piezoelectric materials, which are divided into piezoelectric crystals and piezoelectric ceramics. Piezoelectric crystals generally refer to piezoelectric single crystals; piezoelectric ceramics generally refer to piezoelectric polycrystals.Piezoelectric ceramics refer to the polycr

The crystal grains inside piezoelectric ceramics have many spontaneously polarized electric domains, and they have a certain polarization direction. When there is no external electric field, the electric domains are randomly distributed in the crystal, and their polarization effects are canceled out

Important Applications of Piezoelectric Ceramics Piezoelectric ceramics have been widely used because of their piezoelectricity and the diversity of electromechanical properties caused by piezoelectricity. Due to the wide variety of piezoelectric ceramic device

Piezoelectric hydrophone principle/working principle: Piezoelectric ceramics are used as the energy-transforming material. The piezoceramic tubes are arranged in two parallels to form a bamboo-shaped structure to improve the sensitivity and anti-interference ability of the hydrophone. The piezoelect

The sound vector transducer is composed of a traditional non-directional sound pressure sensor and a dipole-directed point vibration velocity sensor. It can simultaneously measure the sound pressure at a point in the sound field and several orthogonal components of the particle vibration velocity. T

Piezoelectric materials have an excellent ability to convert mechanical force into electrical charge and vice versa. Piezoelectric ceramics such as lead zirconate titanate, lead magnesium niobate-lead titanate, etc. have been widely used in sensors, actuators, transducers and energy harvesters. Howe

Piezoelectric shock absorption system The piezoelectric damping system can be divided into passive damping and active damping. Passive vibration reduction is to prepare a layer of resistive film on the surface of piezoelectric ceramics. The piezoelectric ceramic converts vibration or noise into elec

The cost of single-layer piezoelectric ceramics is very competitive, and its series resonance point is relatively high, which can exceed the megahertz level, and the vibration strength and output working capacity of the single-layer piezoelectric ceramics at the series resonance point are Quite larg

The piezoelectric ceramic sheet is a key component of the laser positioning system in the working process. When in use, it mainly uses the piezoelectric conversion characteristics of the piezoelectric ceramic. When in use, the length of the laser cavity is adjusted by adjusting the voltage to ensure

Piezoelectric ceramics are often used in the field of biomedicine for their wear resistance, long life and biocompatibility, but it is more than that. It is concluded that piezoelectric ceramics have great prospects in the medical device industry. In recent years, the medical device industry has con