Barium Titanate (Barium Titanium Oxide) (BaTiO3)-Powder introduce:
Barium titanate 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 ceramic material that exhibits the photorefractive effect and piezoelectric properties.
Molar mass:233.192 g/mol
Density:6.02 g/cm3, solid
Melting point:1,625 °C (2,957 °F; 1,898 K)
Solubility in water:insoluble
Solubility:slightly soluble in dilute mineral acids; dissolves in concentrated hydrofluoric acid
Band gap:3.2 eV (300 K, single crystal)
Refractive index (nD):no2.412; ne=2.360
Barium titanium oxide is a dielectric ceramic widely used in multi-layer ceramic capacitors (MLCCs), embedded decoupling capacitors (EDC) and ceramic filters. It is a piezoelectric and ferroelectric component used in microphones and transducers. It is also useful for thermistors and self-regulating electric heating systems. It is doped with small amounts of metals like scandium, yttrium, neodymium, samarium to become a semiconductor. It is used in some types of uncooled sensors for thermal cameras and in electric vehicles.
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