Dielectric and ferroelectric characteristics of doped BZT-BCT ceramics sintered at low temperature
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The paper presents relaxor properties of lead-free nanostructured ZnO doped BZT-BCT ceramics sintered at lowtemperature. Curie-Weiss, Quadratic, Vogel-Fulcher laws were applied to study dielectric properties. The fitting experimentaldata to the mentioned laws showed the typical diffuseness characteristic of the materials as a result of the substitution of Zn2+ions into BZT-BCT substrate. Also, received ferroelectric loops were well saturated and fairly slim for all samples that assert againdiffuse ferroelectric nature in the investigated ceramics. The characterized values of remnant polarization, Pr, and coercive field,Ec, depended on ZnO nanoparticles concentration. According to that, when varying doping content in the region of 0.00-0.25%wt,Pr improved and reached a maximum value of 6.19 μC/cm2 at 0.15%wt, then decreased monotonously. Meanwhile Eccontinuously intensified in the range of 1.36-2.72 kV/cm. In other words, nanosized ZnO particles made the ceramics harder
Abstract
The paper presents relaxor properties of lead-free nanostructured ZnO doped BZT-BCT ceramics sintered at lowtemperature. Curie-Weiss, Quadratic, Vogel-Fulcher laws were applied to study dielectric properties. The fitting experimentaldata to the mentioned laws showed the typical diffuseness characteristic of the materials as a result of the substitution of Zn2+ions into BZT-BCT substrate. Also, received ferroelectric loops were well saturated and fairly slim for all samples that assert againdiffuse ferroelectric nature in the investigated ceramics. The characterized values of remnant polarization, Pr, and coercive field,Ec, depended on ZnO nanoparticles concentration. According to that, when varying doping content in the region of 0.00-0.25%wt,Pr improved and reached a maximum value of 6.19 μC/cm2 at 0.15%wt, then decreased monotonously. Meanwhile Eccontinuously intensified in the range of 1.36-2.72 kV/cm. In other words, nanosized ZnO particles made the ceramics harder
참고문헌 (14)
- W. Liu, , Phys. Rev. Lett., 103, pp.257602~ (2009)[DOI]
- D. Xue, , J. Appl. Phys., 109, pp.054110~ (2011)[DOI]
- D. Damjanovic, , Appl. Phys. Lett., 100, pp.192907~ (2012)[DOI]
- J. Wu, , J. Euro. Cera. Soc., 32, pp.891~898 (2012)[DOI]
- D.A. Tuan, , Indian J. Pure & Appl. Phys., 53, pp.409~415 (2015)
- P. Wang, , J. Euro. Cera. Soc., 31, pp.2005~2012 (2011)[DOI]
- S. Su, , Curr. Appl. Phys., 11, pp.S120~S123 (2011)[DOI]
- D.A. Tuan, , Materials Transactions, 56(9), pp.1370~1373 (2015)[DOI]
- Q.T.D. Le, , Adv. Nat. Sci.: Nanosci. Nanotechnol., 2, pp.025013~ (2011)[DOI]
- R. Hayati, , Mat. Sci. and Eng. B, 172, pp.121~126 (2010)[DOI]
- D.A. Tuan, , Inter. J. Modern. Phys. B, 29(32), pp.1550231~ (2015)[DOI]
- J. Hao, , J. Ameri. Cera. Soc., pp.1~9 (2012)
- A.C. Caballero, , J. Euro. Cera. Soc., 17, pp.513~552 (1997)[DOI]
- V.R. Mudinepalli, , J. Adv. Cera., 4(1), pp.46~53 (2015)[DOI]