Production of powdery raw material of easily sinterable titanium-containing perovskite and solid solution thereof

Abstract

Abstract PURPOSE:To obtain the titled product having high uniformity and bulk density and sinterable easily, at a low cost, by forming a precipitate from a Ti alkoxide solution and an aqueous solution of a compound containing metallic element coordinated with 6 oxygen atoms and calcining the precipitate. CONSTITUTION:A solution of titanium alkoxide and an aqueous solution of a compound containing the metallic element of the component B are made to contact with a precipitate- forming liquid to precipitate the titanium component and a metallic element (other than titanium) coordinated with 6 oxygen atoms (the component B) and the obtained precipitate is added with an aqueous solution of a compound containing a metallic element coordinated with 12 oxygen atoms (the component A) to obtain the precipitate of the component A. As an alternative method, a mixed aqueous solution of a compound containing the metallic element of the component A and a compound containing the metallic element of the component B is made to contact with a precipitate-forming liquid to form the precipitate of the component A and the component B. The precipitate produced by either of the above procedures is added with a solution of a titanium alkoxide to precipitate a titanium component. The precipitate is washed, filtered, dried and calcined at 400-1,000 deg.C to obtain the raw material powder of the objective easily sinterable titanium-containing perovskite and its solid solution.

Inventors

• 👤 Shinichi Shirasaki
• 👤 信一 白崎
• 👤 Kyoji Odan
• 👤 恭二 大段
• 👤 Kosuke Ito
• 👤 伊藤　幸助
• 👤 Masaru Kurahashi
• 👤 優 倉橋
• 👤 Motoharu Hanaki
• 👤 花木　基治

Bibliographic Details