Barium titanate is a mixed oxide of barium and titanium. The formula of Barium titanate is BaTiO3. Barium titanate is one kind of material of ferroelectric ceramic, and it is of piezoelectric properties and light refraction. There are five crystal structures when it remains solid-state. According to the temperature, they are: the six-party, the axes, the square, the orthorhombic and the trigonal. In addition to other axes, the structures of the rest are presenting ferroelectricity.
Barium titanate powder is white or transparent crystals. It is insoluble in water, soluble in concentrated sulfuric acid, R / S phrase as R20/22, S28A, S37 and S45.Barium titanate sintered by liquid barium carbonate and titanium dioxide obtained, which can be doped with any other material.
It is reported that high-purity barium nitrate is the electric car EEstor barium titanate capacitor energy storage system is a key component. Barium titanate and strontium titanate can often be mixed.
Barium titanate ceramic capacitor is used as the dielectric material, microphones and other sensors of the piezoelectric material. As a piezoelectric material, it often replaces the lead zirconate. Titanate .Polycrystalline barium titanate shows a positive temperature coefficient thermistor to become self-regulating electric heating system and useful materials.
All dense nanocrystalline barium titanate’s constant dielectric is up to 40%, Zinc oxide comparing with other materialsof traditional method of manufacturing, it is much higher.
Barium titanate crystal is used in nonlinear optics. It has a high optical coupling gain and maintain in the visible and near infrared bands.
It is self-pumped phase conjugation (self-pumped phase conjugation, SPPC) the application of the material used in the highest reflectivity. It can be used in continuous-wave four-wave mixing mW optical power remotely. In photorefractive applications, barium titanate can be doped with other elements, such as cerium.
Tin-doped barium titanate in the inclusion complex (inclusions) has been shown to create a diamond higher than the viscoelastic stiffness (stiffness) of the bulk material (bulk material). Phase transition in barium titanate crystals will change the shape and size. This leads to barium titanate composites with negative bulk modulus (Young's modulus), that is, when a force when applied to the inclusion in the opposite direction will have a displacement, and further strength of the composite material.
Thin film electro-optic modulator of Barium titanate shows more than 40 GHz frequency.Barium titanate’s pyroelectric and ferroelectric properties, are used in some sort of thermal cameras with uncooled sensors.Source: http://www.mhcocm.com