Product Name
Name：Nano Barium Titanate（Tetragonal phase:/span>
Product Overview
Barium titanate (BaTiO3), with a molecular weight of 233.19, is a white crystalline powder that is soluble in concentrated sulfuric acid, hydrochloric acid, and hydrofluoric acid, but insoluble in dilute nitric acid, water, and alkali. The crystal of barium titanate belongs to the typical perovskite structure (AB03), with an ideal structural unit cell, namely a cubic symmetric unit cell. The six oxygen atoms in barium titanate crystals form octahedra, with titanium located at the center of the octahedra and barium in the gaps between the octahedra. As the temperature decreases, the thermal motion of titanium ions also weakens. Above the Curie point (120 ¡ãC, barium titanate is in the cubic phase and belongs to the paraelectric phase. At room temperature, barium titanate belongs to the tetragonal ferroelectric system. The crystal forms of barium titanate are divided into five types: hexagonal phase, cubic phase, tetragonal phase, rhombohedral phase, and rhombohedral phase. Among them, the triclinic, rhombohedral, and tetragonal crystal systems are called ferroelectric crystal systems, which have ferroelectricity. The preparation methods of nanometer barium titanate mainly include sol gel method, hydrothermal method, chemical precipitation method, solid phase method and ultrasonic synthesis method.
Technical Parameter
Size:00-350nm
Purity: 99 wt%
Main ingredient: BaTiO3
Appearance：White powder
Product Features
High dielectric constant and low dielectric loss: Nanoscale barium titanate has a higher dielectric constant and lower dielectric loss, which makes it perform well in high-frequency applications. Excellent ferroelectric and piezoelectric properties: These characteristics enable nano barium titanate to be used for manufacturing high-performance sensors and actuators. Positive Temperature Coefficient Effect (PTC): This effect makes nano barium titanate have important applications in thermistors. Photoluminescence and photocatalytic activity: When the particle size reaches the nanometer level, barium titanate also exhibits unique photoluminescence and photocatalytic activity, which can be used for the degradation of organic pollutants.
Application Fields
Multilayer Ceramic Capacitor (MLCC): Due to its high dielectric constant and low dielectric loss, nano barium titanate is an ideal material for making MLCC and is widely used in various electronic devices. Thermistor (PTC): Utilizing its positive temperature coefficient effect, nano barium titanate is used to manufacture high-performance thermistors. Optoelectronic devices: Due to their excellent photoluminescence and photocatalytic activity, nano barium titanate can be used in the manufacturing of optoelectronic devices. Microwave ceramics: In the field of microwave technology, nano barium titanate is widely used due to its excellent dielectric properties. Biomedical applications: such as bone repair or implants, utilizing their porous structure and good biocompatibility.
Related Information
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