Barium Titanate

Barium Titanate Supplier in Europe

Barium Titanate is a material of significant interest in both industrial and scientific applications due to its unique properties.

It is a ceramic compound that presents notable dielectric, ferroelectric, and piezoelectric characteristics, which make it ideal for various technological innovations.

Barium Titanate is primarily utilized in capacitors, sensors, and actuators owing to its superior performance and efficiency.

The crystal structure of Barium Titanate allows it to exhibit a spontaneous electric polarization, which can be reversed by an external electric field.

This attribute is crucial for its ferroelectric property, enabling wide usage in non-volatile memory devices.

Barium Titanate’s high dielectric constant also positions it as a key material in producing compact and efficient capacitors.

In the realm of electronics, the role of Barium Titanate is expanding rapidly.

Its piezoelectric properties are being leveraged in a variety of applications, from medical ultrasound transducers to precision actuator devices.

This adaptability and multifunctionality continue to drive research and development efforts, ensuring Barium Titanate remains at the forefront of material science innovation.

Properties

Barium Titanate is known for its significant dielectric properties, high permittivity, and piezoelectric capabilities. These features make it useful in capacitors and sensors. It also exhibits interesting thermal properties, helping it maintain stability across various temperatures.

Physical Properties

Barium Titanate appears as a white powder and can form transparent crystals.

This compound centers around a perovskite structure with a cubic formation under high temperatures. As the temperature decreases, the structure transitions, affecting its properties.

The material shows a clear ferroelectric phase below specific temperature thresholds. Its density, around 6.02 g/cm³, ensures that the material remains robust under different conditions.

Its high chemical stability and mechanical strength are particularly notable, making it suitable for various industrial applications.

Electrical Properties

Barium Titanate is renowned for its high dielectric constant, which can exceed 10,000.

This characteristic makes it exceptionally useful for capacitors and other electronic components needing large energy storage.

It also exhibits strong piezoelectric properties, allowing it to convert mechanical energy to electrical energy and vice versa.

The compound maintains a stable capacitance over a broad frequency range. Its resistivity, typically in the range of 10¹¹–10¹² Ω·cm, ensures good insulation performance, making it reliable in electronics applications.

Thermal Properties

Thermal properties of Barium Titanate include a Curie temperature around 120°C.

Beyond this temperature, it shifts from a ferroelectric to a para electric phase, altering its structural arrangement and characteristics.

The material’s thermal expansion coefficient is relatively low, maintaining dimensional stability even with temperature changes.

Additionally, it has a high thermal conductivity compared to other ceramic materials. This contributes to effective heat dissipation, allowing it to perform reliably in electronic devices exposed to varying thermal conditions.

The material’s ability to resist thermal shock adds to its durability.

Applications

Barium Titanate is essential in several technological domains. This material’s unique properties make it vital in capacitors, piezoelectric devices, and optoelectronics.

Capacitors

Barium Titanate is pivotal in the production of ceramic capacitors.

Its high dielectric constant enables capacitors to store large amounts of electric charge in a compact form. This property is particularly useful in applications requiring miniaturization, such as laptops and smartphones.

The material’s thermal stability ensures consistent performance across a wide range of temperatures.

Enhanced reliability in electronic circuits is achieved, making it indispensable in modern electronics.

Applications often include everything from simple electronic circuits to more complex systems like automotive electronics and industrial machines.

Piezoelectric Devices

Piezoelectric devices benefit greatly from Barium Titanate due to its characteristic piezoelectric properties.

When mechanical stress is applied, it generates an electric charge, which is crucial for sensors and actuators in various industries.

The material’s sensitivity to pressure changes is key to its performance.

Medical ultrasound equipment, microphones, and sonar devices frequently use it.

Mechanical-to-electrical conversion is efficient and reliable, enhancing the precision of devices operating under dynamic conditions.

Optoelectronics

In optoelectronics, Barium Titanate fulfills essential functions due to its photorefractive and electro-optic properties. It aids in the modulation of light, which is critical in the development of advanced optical devices.

Applications often include laser technology and adaptive optics used in telecommunications.

Its ability to change refractive index with the application of an electric field allows unprecedented control over light propagation in optical systems. This makes it a valuable component in the expansion of optical communication networks.