The Effect of La Substitution on the Ferroelectric Properties of Bi4Ti3O12 Ceramics

2014 ◽  
Vol 633 ◽  
pp. 390-393
Author(s):  
X.B. Liu ◽  
X.A. Mei ◽  
M. Chen ◽  
B. Li
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
Potential Applications ◽  
Layered Perovskite Structure ◽  
La Substitution ◽  
Titanate Ceramics ◽  
La Doped

The effect of La substitution on the ferroelectric properties Bi4Ti3O12 ceramics prepared by a conventional electroceramic technique has been investigated. XRD analyses revealed Bi-layered perovskite structure in all Bi4-xLaxTi3O12 (BLT) ceramics samples, and indicted that Bi ions were only substituted near the Ti-O octahedron layers by La ions. SEM micrographs show randomly oriented and plate-like morphology. The remanent polarization ( Pr ) and coercive field ( Ec ) of the BLT ceramic with x=0.8 were above 15μC/cm2 and 85KV/cm, respectively. The large value of remanent polarization and low coercive field of La-doped bismuth titanate ceramics promote these materials to potential applications.

Ferroelectric Properties and Microstructures of La2O3-Doped Bi4Ti3O12 Ceramics

2011 ◽  
Vol 412 ◽  
pp. 302-305
Author(s):  
Chong Qing Huang ◽  
Min Chen ◽  
X.A. Mei ◽  
Y.H. Sun ◽  
J. Liu
Keyword(s):  
Electrical Properties ◽  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
Potential Applications ◽  
Layered Perovskite Structure ◽  
Titanate Ceramics ◽  
La Doped

The electrical properties of La-doped bismuth titanate, Bi4-xLaxTi3O12(BLT) ceramics prepared by a conventional electroceramic technique have been investigated. XRD analyses revealed Bi-layered perovskite structure in all samples, and indicted that Bi ions were only substituted near the Ti-O octahedron layers by La ions. SEM micrographs show randomly oriented and plate-like morphology. The remanent polarization ( Pr) and coercive field ( Ec) of the BLT ceramic with x=0.75 were above 19μC/cm2and 60KV/cm, respectively. The large value of remanent polarization and low coercive field of La-doped bismuth titanate ceramics promote these materials to potential applications.

Ferroelectric Properties and Microstructures of Tb2O3-Doped Bismuth Titanate Ceramics

2014 ◽  
Vol 633 ◽  
pp. 265-268 ◽  
Author(s):  
X.A. Mei ◽  
M. Chen ◽  
C.Q. Huang ◽  
R.F. Liu
Keyword(s):  
Electrical Properties ◽  
Coercive Field ◽  
Perovskite Structure ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
Potential Applications ◽  
Layered Perovskite Structure ◽  
Titanate Ceramics

The electrical properties of Tb2O3-doped bismuth titanate,Bi4-xTbxTi3O12 (BTT) ceramics prepared by a conventional electroceramic technique have been investigated. XRD analyses indicted Bi-layered perovskite structure in all samples, and revealed that Bi ions were only substituted near the Ti-O octahedron layers by Tb ions. SEM micrographs show randomly oriented and plate-like morphology. The remanent polarization ( Pr ) and coercive field ( Ec ) of the BTT ceramics with x=0.75 were above 16μC/cm2 and 75KV/cm, respectively. The large value of remanent polarization and low coercive field of Tb-doped bismuth titanate ceramics promote these materials to potential applications.

Ferroelectric Properties and Microstructures of Dy2O3-Doped Bi4Ti3O12 Ceramics

2011 ◽  
Vol 492 ◽  
pp. 226-229
Author(s):  
J. Liu ◽  
M. Chen ◽  
X.A. Mei ◽  
Y.H. Sun ◽  
Chong Qing Huang
Keyword(s):  
Electrical Properties ◽  
Coercive Field ◽  
Perovskite Structure ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Layered Perovskite ◽  
Potential Applications ◽  
Layered Perovskite Structure ◽  
Titanate Ceramics

The electrical properties of Dy-doped bismuth titanate, Bi4-xDyxTi3O12(BDT) ceramics prepared by a conventional electroceramic technique have been investigated. XRD analyses revealed Bi-layered perovskite structure in all samples, and indicted that Bi ions were only substituted near the Ti-O octahedron layers by Dy ions. SEM micrographs show randomly oriented and plate-like morphology. The remanent polarization (Pr) and coercive field (Ec) of the BDT ceramic with x = 0.75 were above 19μC/cm2and 50KV/cm, respectively. The large value of remanent polarization and low coercive field of Dy-doped bismuth titanate ceramics promote these materials to potential applications.

Effect of Tb Substitution on Electrical Characteristics and Microstructures of Bismuth Titanate Ceramics

2008 ◽  
Vol 368-372 ◽  
pp. 95-97
Author(s):  
Min Chen ◽  
W.K. An ◽  
A.H. Cai ◽  
Chong Qing Huang ◽  
K.L. Su ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Coercive Field ◽  
Perovskite Structure ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Layered Perovskite ◽  
Electrical Characteristics ◽  
Sem Micrographs ◽  
Layered Perovskite Structure ◽  
Titanate Ceramics

The electrical properties and Microstructures of Tb-doped bismuth titanate (Bi3.3Tb0.6Ti3O12) ceramic were investigated. XRD analyses revealed that the sample had Bi-layered perovskite structure. SEM micrographs showed randomly oriented and plate-like morphology. The remanent polarization (Pr) and coercive field (Ec) of Bi3.3Tb0.6Ti3O12 ceramic are above 25 μC/cm2 and 80 KV/cm, respectively.

Ferroelectric Properties of Bi4-xPmxTi3O12 Ceramics

2013 ◽  
Vol 591 ◽  
pp. 224-227
Author(s):  
Fang Tian ◽  
X.A. Mei ◽  
M. Chen ◽  
C.Q. Huang
Keyword(s):  
Electrical Properties ◽  
Coercive Field ◽  
Perovskite Structure ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Hysteresis Loops ◽  
Layered Perovskite ◽  
Layered Perovskite Structure ◽  
Large Leakage Current

The electrical properties of Pm2O3-doped bismuth titanate,Bi4-xPmxTi3O12 (BPT) ceramics prepared by a conventional electroceramic technique were investigated. XRD analyses revealed Bi-layered perovskite structure in all samples. SEM micrographs showed randomly oriented and plate-like morphology. For the samples with x=0.4 and 1.0 P-E hysteresis loops were characterized by large leakage current, whereas for the samples with x=0.6 and 0.8 P-E hysteresis loops were the saturated and undistorted hysteresis loops. The remanent polarization ( Pr ) and coercive field (Ec) of the BPT ceramic with x=0.8 were above 18μC/cm2 and 75KV/cm , respectively.

Ferroelectric Properties of Bismuth Titanate Ceramics by Dy3+/V5+ Substitution

2011 ◽  
Vol 412 ◽  
pp. 306-309
Author(s):  
Chong Qing Huang ◽  
Min Chen ◽  
X.A. Mei ◽  
Y.H. Sun ◽  
J. Liu
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Polycrystalline Structure ◽  
Oriented Polycrystalline ◽  
Titanate Ceramics

The ferroelectricity of Bi3.25Dy0.75Ti3O12(BDT), and Bi3.25Dy0.75Ti2.97V0.03O12(BDTV) ceramics prepared at 1100°C by a conventional ceramic technique was investigated. These ceramics possess random-oriented polycrystalline structure. The remanent polarization (Pr) and coercive field (Ec) of the BDT ceramics are 15 µC/cm2and 64kV/cm, respectively. Furthermore, V substitution improves the Prvalue of the BDT ceramics up to 23 μC/cm2, which is much larger than that of the BDT ceramics. Therefore, co-sustitution of D and V in Bi4Ti3O12(BIT) ceramic is effective for the improvement of its ferroelectricity.

Ferroelectric Properties of Bismuth Titanate Ceramics by Sm3+/V5+ Substitution

2007 ◽  
Vol 280-283 ◽  
pp. 167-170
Author(s):  
M. Chen ◽  
Zu Li Liu ◽  
Kai Lun Yao
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Polycrystalline Structure ◽  
Co Substitution ◽  
Oriented Polycrystalline ◽  
Bst Ceramics ◽  
Titanate Ceramics

The ferroelectricity of Bi3.2Sm0.8Ti3O12 (BST) and Bi3.2Sm0.8Ti2.97V0.03O12 (BSTV)ceramics prepared at 1100oC by a conventional ceramic technique is investigated. These ceramics possess random-oriented polycrystalline structure. The remanent polarization (Pr) and coercive field (Ec) of the BST ceramics are 16 µC/cm2 and 62kV/cm, respectively. Furthermore, V5+ substitution improves the Pr value of the BST ceramics up to 25µC/cm2, which is larger than that of the BST ceramics. Therefore, the co-substitution of Sm3+ and V5+ in Bi4Ti3O12 (BIT) ceramics is effective for the improvement of its ferroelectricity.

Impedance Spectra and Ferroelectric Properties of Bismuth Titanate Ceramics by Nd3+/V5+ Substitution

2012 ◽  
Vol 624 ◽  
pp. 174-177 ◽  
Author(s):  
Min Chen ◽  
X.A. Mei ◽  
Rui Fang Liu ◽  
C.Q. Huang ◽  
J. Liu
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Impedance Spectra ◽  
Polycrystalline Structure ◽  
Oriented Polycrystalline ◽  
Titanate Ceramics

The ferroelectricity of Bi3.25Nd0.75Ti3O12 (BNT), and Bi3.25Nd0.75Ti2.97V0.03O12 (BNTV) ceramics prepared at 1100°C 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. Therefore, co-sustitution of Nd and V in Bi4Ti3O12 ceramic is effective for the improvement of its ferroelectricity.

Ferroelectric Properties of Bismuth Titanate Ceramics by Pm3+/V5+ Substitution

2013 ◽  
Vol 591 ◽  
pp. 228-231
Author(s):  
Fang Tian ◽  
X.A. Mei ◽  
M. Chen ◽  
C.Q. Huang
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Polycrystalline Structure ◽  
Oriented Polycrystalline ◽  
Titanate Ceramics

The ferroelectricity of Bi3.25Pm0.75Ti3O12 (BPT), and Bi3.25Pm0.75Ti2.97V0.03O12 (BPTV) ceramics prepared at 1200°C by a conventional ceramic technique was investigated. These ceramics possess random-oriented polycrystalline structure. The remanent polarization (Pr) and coercive field (Ec) of the BPT ceramic are 16 μC/cm2 and 62kV/cm, respectively. Furthermore, V substitution improves the Pr value of the BPT ceramic up to 25 μC/cm2 which is larger than that of the BPT ceramic. Therefore, co-sustitution of Pm and V in Bi4Ti3O12 (BIT) ceramic is effective for the improvement of its ferroelectricity.

Ferroelectric Properties of Bismuth Titanate Ceramics by Sm3+/V5+ Substitution

2012 ◽  
Vol 512-515 ◽  
pp. 1333-1336 ◽  
Author(s):  
Chong Qing Huang ◽  
Min Chen ◽  
R.F. Liu ◽  
X.A. Mei ◽  
J. Liu
Keyword(s):  
Coercive Field ◽  
Remanent Polarization ◽  
Bismuth Titanate ◽  
Ferroelectric Properties ◽  
Polycrystalline Structure ◽  
Oriented Polycrystalline ◽  
Bst Ceramics ◽  
Titanate Ceramics

The ferroelectricity of Bi3.25Sm0.75Ti3O12 (BST), and Bi3.25Sm0.75Ti2.97V0.03O12 (BSTV) ceramics prepared at 1100°C by a conventional ceramic technique was investigated. These ceramics possess random-oriented polycrystalline structure. The remanent polarization (Pr) and coercive field (Ec) of the BST ceramics are 16 µC/cm2 and 64kV/cm, respectively. Furthermore, V substitution improves the Pr value of the BST ceramics up to 25 μC/cm2, which is much larger than that of the BST ceramics. Therefore, co-sustitution of Sm and V in is effective for the improvement of the ferroelectricity of Bi4Ti3O12 ceramic.

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