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Process for producing perovskite-type oxides of the abo3 type
Process for producing perovskite-type oxides of the abo3 type
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机译:生产abo3型钙钛矿型氧化物的方法
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摘要
A process for producing a perovskite-type oxide of the ABO₃ type is disclosed. A solution of an element A (Pb, Ca, Sr and/or La) and an element B (Ti and/or Zr) is brought into contact with oxalic acid in the presence of an alcohol to precipitate oxalic acid salts; the acid radicals in the solution are neutralized with an amine or ammonia; the resulting precipitate is then subjected to calcination.;A fine-grained ferroelectric oxide having a sharp grain size distribution can be produced, with its chemical composition being exactly controlled. This oxide is suitable for use as a piezoelectric, pyroelectric or ferroelectric material.
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