钛酸钡
钛酸钡是钡和钛的混合氧化物，也称偏钛酸钡，化学式为BaTiO3。钛酸钡是一个铁电陶瓷材料，有光折射效应及压电性质。其固态时可有五种晶体结构，温度从高到低依次为：六方、等轴、四方、斜方及三方晶系。除等轴外，其余的结构都呈现铁电性。
Barium titanate
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Barium titanate 钛酸钡
![Scanning transmission electron microscopy of the ferroelastic domains that form in BaTiO3 on cooling through the Curie temperature. The vertex point, where domain bundles meet, moves from the center in isometric crystals (top) to off-center in oblongs (bottom).[7]](/uploads/202412/23/BaTiO3_ferro_domains1401.jpg)
Barium titanate is the inorganic compound with the chemical formula BaTiO3. Barium titanate is a white powder and transparent as larger crystals. This titanate is a ferroelectric ceramic material, with a photorefractive effect and piezoelectric properties.
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