What is a Barium titanate (BaTiO₃) ?

Barium titanate (BaTiO₃) is an inorganic compound composed of barium, titanium, and oxygen, and it has a perovskite crystal structure. It appears as a white crystalline powder and is known for its excellent dielectric, piezoelectric, and optical properties. It is widely used in electronic components and ceramics, especially in capacitors, PTC thermistors, ultrasonic sensors, and actuators. Barium titanate is notable for its significant change in dielectric constant with temperature, making it suitable for precision temperature control and sensor applications. In recent years, it has also attracted attention as a lead-free, environmentally friendly piezoelectric material.

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