Preparation of Ultrafine Bi4Ti3O12 Powder by Coprecipitation Methods

Abstract

Abstract: Ultrafine Bi₄Ti₃O₁₂ powder was prepared by a coprecipitation method and its phase evolution process and sintering behavior were investigated. The
results show that the synthetic temperature of Bi₄Ti₃O₁₂ is lowered significantly due to homogeneous mixing of Ti and Bi components in the
precursor mixture, and phase pure Bi₄Ti₃O₁₂ powder can be produced after aging at 600℃. The powder obtained consists of irregular-shaped
particles of about 100nm and is nearly aggregate free. Dense Bi₄Ti₃O₁₂ ceramics can be prepared at a considerably low temperature of 950℃,
indicating the high sinterability of the powder.

Key words: bismuth titanate, coprecipitation, ultrafine powder, sintering

CLC Number:

TF123

KAN Yan-Mei,JIN Xi-Hai,WANG Pei-Ling,LI Yong-Xiang,CHENG Yi-Bing. Preparation of Ultrafine Bi₄Ti₃O₁₂ Powder by Coprecipitation Methods[J]. Journal of Inorganic Materials.

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Preparation of Ultrafine Bi₄Ti₃O₁₂ Powder by Coprecipitation Methods

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