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Background The chemical formula for Barium Titanate is BaTiO 3. As a powder it is white to grey in colour and has a perovskite structure. It is soluble in many acids including sulfuric, hydrochloric and hydrofluoric acids. It is insoluble in alkalis and water. In the pure form it is an electrical insulator. However, when doped with small amounts of metals, most notably scandium, yttrium, neodymium, samarium etc it becomes semiconducting. As a semiconductor it exhibits positive temperature of co-efficient of resistivity (PTCR) properties in the polycrystalline form. This means at a certain temperature, called the Curie temperature, the material will exhibit an increase in resistivity, the increase typically being several orders of magnitude. The Curie temperature can to some extent be controlled by the dopant. At the Curie temperature, barium titanate undergoes a phase change from tetrahedral to cubic. It has also been reported that single crystals of barium titanate exhibit negative temperature co-efficient of resistivity (NTCR) properties.
3. Make microcapacitor 4. Make ultrasonic generator 5. Use in catalyst ckage N. W 25kg in plastic woven bags with lining or with pallet. Small order is acceptable 5. Materials and other components of the ultrasonic generator are also used to make. if you are interested in nanotechnology and want to use nanomaterials to develop new products, tell us and we will help you. Please make sure the purchase order has both the letterhead and authorized signature on it. Use in catalyst 3. Package: N. Special package according to customer's requirement Packaging & Shipping Warm and Efficient Service 1. Forty years technique deposition 2. Military standard quality 3. 24 hours on line service choose us9 We are the manufacturer with more than 40 years history.
5mm, 1. 0mm or others Polishing and polarization Polishing Single side polished or Double side polished Polarization <100>; <110> or <111> can not polarized; <001> must be polarized Barium titanate (BaTiO3) single crystal has excellent photorefractive properties, with high self-pumped phase conjugate reflectivity and two-wave mixing (light amplification) efficiency. In the optical information storage has enormous potential applications; while it is also an important substrate material.
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Barium titanate also exhibits ferroelectric properties and is an excellent photorefractive material. Applications Due to its PTCR properties, barium titanate is most often found used as a thermistor e. g. in thermal switches. Key Properties Property Value Density ( -3) 6. 02 Melting Point (°C) 1650 Young's Modulus (GPa) 67 Hardness (Mohs) 5 Source: