Preparation of Vanadium Doped Bi4Ti3O12 Powder by Co-precipitation and Dielectric Property of Sintered Ceramics

doi:10.3724/SP.J.1077.2007.00595

Abstract

Abstract: Vanadium doped Bi₄Ti₃O₁₂powder was prepared by a co-precipitation method and its phase evolution process, microstructure and sintering behavior were investigated. The results indicate that Bi4Ti3O12 crystalline phase with grain sizes of less than 100nm can be obtained by calcination of the precursor at 550℃, which is 250℃ lower than that of traditional solid reaction. The powder possesses a good sintering activity and the bulk density of sintered samples can reach 96% of theoretical value when sintering at 900℃ for 1h. In comparison to the material prepared by solid reaction, the sample made from the co-precipitation powder also has lower dielectric loss.

Key words: bismuth titanate, co-precipitation, sintering, dielectric property

CLC Number:

TF123

TANG Qing-Yuan,LI Yao-Gang,KAN Yan-Mei,ZHANG Guo-Jun,WANG Pei-Ling. Preparation of Vanadium Doped Bi₄Ti₃O₁₂Powder by Co-precipitation and Dielectric Property of Sintered Ceramics[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.00595.

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Preparation of Vanadium Doped Bi₄Ti₃O₁₂Powder by Co-precipitation and Dielectric Property of Sintered Ceramics

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