Barium Titanate (BaTiO₃)

وصف

Barium Titanate (BaTiO₃) is an important inorganic compound with the chemical formula BaTiO₃, a molecular weight of 233.21, and a melting point of 1618°C. It is a white powder or transparent crystal that is insoluble in water but soluble in concentrated sulfuric acid.

Physical and chemical properties

BaTiO₃ has a variety of unique physical and chemical properties, including its crystal structure and ferroelectricity. Barium titanate transforms into a cubic perovskite structure between 1460~130°C, and in the temperature range of 130~5°C, it transforms into a tetragonal system, showing significant ferroelectricity.

Barium Titanate (BaTiO₃) is an important ceramic material that plays a key role in the ceramic industry. It can not only improve the mechanical properties of ceramics, but also enhance their electrical and optical properties, so it is widely use in a variety of applications.

Improve mechanical properties

Barium Titanate (BaTiO₃) can significantly improve the mechanical strength and hardness of ceramics, making them more durable and wear-resistant. This is particularly important in the preparation of products such as ceramic tiles, ceramic utensils and abrasives2.

Improve electrical properties
Barium Titanate (BaTiO₃) can also improve the electrical properties of ceramics, so it is widely use in electronic ceramics. These ceramic products are often used in capacitors, resistors, and other electronic components to support the normal operation of the circuit2.

Fluorescent materials
Barium titanate can be excited and emit fluorescence, so it is widely used to prepare fluorescent powders. These fluorescent powders are use to make fluorescent lamps, LED lamps, and display screens to produce different colors of light.

By adjusting the different dopants of barium titanate, the color of the fluorescence can be adjust, thus showing great potential in lighting and display technology.

Prepare ceramic coatings
Barium titanate can be used to prepare ceramic coatings, which are often use to provide surface protection, wear resistance, and corrosion resistance. Adding Barium Titanate (BaTiO₃)can improve the performance of the coating, making it more durable and suitable for harsh environments2.

Make electronic ceramic components

Barium titanate has the characteristics of high dielectric constant and low dielectric loss, Barium Titanate (BaTiO₃)as well as excellent ferroelectric, piezoelectric and insulation properties, so it is widely use in the manufacture of ceramic sensitive components, multilayer ceramic capacitors (MLCC), positive temperature coefficient thermistors (PTC) and other electronic components3.

High energy storage density dielectric material

Barium titanate ceramics can be use as high energy storage density dielectric materials to manufacture high energy storage capacitors, which are suitable for pulse power technology.

Compared with other energy storage devices, capacitors have the advantages of large discharge power, high efficiency, and long pulse discharge life.

They are gradually becoming energy storage components in pulse power equipment and are widely use in defense fields such as electromagnetic rail weapons. All-electric warships, and combat vehicles1.

Optoelectronic components
Due to the perovskite crystal structure of Barium Titanate (BaTiO₃), it also has important applications in optoelectronic components, such as electro-optical display panels and infrare radiation detection3.

In summary, the role and use of barium titanate in ceramics are very extensive. From improving mechanical and electrical properties to preparing fluorescent materials and ceramic coatings.

To making various electronic ceramic components and high energy storage capacitors, barium titanate plays an irreplaceable role. With the development of science and technology, the application prospects of barium titanate in the field of ceramics will be broader.