Ferroelectric Properties of Bismuth Titanate Ceramics by Er3+/V5+ Substitution
The ferroelectricity of Bi3.2Er0.8Ti3O12 (BET),and Bi3.2Er0.8Ti2.97V0.03O12 (BETV) ceramics prepared at 1100℃ by a conventional ceramic technique was investigated.These ceramics possess random-oriented polycrystalline structure.The remanent polarization (Pr) and coercive field (Ec) of the BET ceramics are 18 μC/cm2 and 64kV/cm,respectively.Furthermore,V substitution improves the Pr value of the BETV ceramics up to 30 μC/cm2,which is much larger than that of the BET ceramics.Therefore,co-sustitution of Er and V in Bi4Ti3O12 (BIT) ceramic is effective for the improvement of its ferroelectricity.
Microstructure Ceramic Ferroelectric Doping Dielectric
R.F.Liu M.B.Sun W.P.Ding X.A.Mei
School of math,Hunan Institute of Science and Technology,Yueyang,414000,China
国际会议
桂林
英文
158-161
2012-07-16（万方平台首次上网日期，不代表论文的发表时间）