Impedance spectra and Ferroelectric Properties of Bismuth Titanate Ceramics by Nd3+/V5+ Substitution
The ferroelectricity of Bi3.25Nd0.75Ti3O12 (BNT),and Bi3.25Nd0.75Ti2.97V0.03O12 (BNTV) 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 BNT ceramics are 16 μC/cm2 and 65kV/cm,respectively.Furthermore,V substitution improves the Pr value of the BNTV ceramics up to 23 μC/cm2,which is much larger than that of the BNT ceramics.Thcrcfore,co-sustitution of Nd and V in Bi4Ti3O12 ceramic is effective for the improvement of its ferroelectricity.
Microstructure Ceramic Ferroelectric Doping Dielectric
M.Chen X.A.Mei R.F.Liu C.Q.Huang J.Liu
School of Physics and Electronics,Hunan Institute of Science and Technology,Yueyang,414000,China
国际会议
桂林
英文
174-177
2012-07-16（万方平台首次上网日期，不代表论文的发表时间）