Barium titanate, Barium Titanate(IV), BaTiO3

Product Information

Barium titanate (BTO) is an inorganic compound with chemical formula BaTiO3. Barium titanate appears white as a powder and is transparent when prepared as large crystals. It is a ferroelectric, pyroelectric, and piezoelectric ceramic material that exhibits the photorefractive effect. It is used in capacitors, electromechanical transducers and nonlinear optics. Barium Titanate is a crystalline solid used in photo optic applications. Titanate compounds contain a form of Titanium Oxide and have various applications including electronics, ceramics, and batteries (in the case of Lithium Titanate). Researchers from the University of Illinois recently created nanofiber mats of zinc titanate that can scrub sulfur impurities from petroleum-based fuels more efficiently than existing methods, a nanotechnology-based development that may lower the cost of fuel technologies in the future

Synonyms

Barium titanate, barium(2+); dioxido(oxo)titanium, barium titanium oxide, barium titanium trioxide, CAS 7787-45-3, Ba-tat, PTC (Positive Temperature Coefficient) Formulated Thermistor Powder

Barium titanate Specification

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Properties（Theoretical）

Applications of Barium titanate

• Barium titanate is a dielectric ceramic used in capacitors, with dielectric constant values as high as 7,000. Over a narrow temperature range, values as high as 15,000 are possible; most common ceramic and polymer materials are less than 10, while others, such as titanium dioxide (TiO2), have values between 20 and 70.

• It is a piezoelectric material used in microphones and other transducers. The spontaneous polarization of barium titanate single crystals at room temperature range between 0.15 C/m2 in earlier studies, and 0.26 C/m2 in more recent publications,[13] and its Curie temperature is between 120 and 130 °C. The differences are related to the growth technique, with earlier flux grown crystals being less pure than current crystals grown with the Czochralski process,which therefore have a larger spontaneous polarization and a higher Curie temperature.

• As a piezoelectric material, it has been largely replaced by lead zirconate titanate, also known as PZT. Polycrystalline barium titanate has a positive temperature coefficient of resistance, making it a useful material for thermistors and self-regulating electric heating systems.

• Thin films of barium titanate display electrooptic modulation to frequencies over 40 GHz

• The pyroelectric and ferroelectric properties of barium titanate are used in some types of uncooled sensors for thermal cameras.

• Barium titanate is widely used in thermistors and positive temperature coefficient heating elements. For these applications, barium titanate is manufactured with dopants to give the material semiconductor properties. Specific applications include overcurrent protection for motors, ballasts for fluorescent lights, automobile cabin air heaters, and consumer space heaters

• High-purity barium titanate powder is reported to be a key component of new barium titanate capacitor energy storage systems for use in electric vehicles.

• Due to their elevated biocompatibility, barium titanate nanoparticles (BTNPs) have been recently employed as nanocarriers for drug delivery.

• Magnetoelectric effect of giant strengths have been reported in thin films grown on barium titanate substrates

• Barium titanate crystals find use in nonlinear optics. The material has high beam-coupling gain, and can be operated at visible and near-infrared wavelengths. It has the highest reflectivity of the materials used for self-pumped phase conjugation (SPPC) applications. It can be used for continuous-wave four-wave mixing with milliwatt-range optical power. For photorefractive applications, barium titanate can be doped by various other elements, e.g. iron.

Packing of Barium titanate

Standard Packing:

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.

ATTs’ Barium titanate is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.

Chemical Identifiers