Effect of substitution of Pb on ferroelectric and piezoelectric properties BZT ceramics

Kumar, Parveen; Singh, Sangeeta; Juneja, J. K.; Prakash, Chandra; Raina, K. K.

doi:10.1016/j.matlet.2015.01.160

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…Barium Titanate (BT) has become one of the most important electroceramic since the discovery of its versatility in multilayer ceramic capacitors (MLCC), piezoelectric sensors, transducers, actuators and ferroelectric random access memories (FRAM) and electro-optic devices [1][2][3][4]. It has also been reported that substitution of Pb 2+ for Ba 2+ in BT raises the Curie point and also lowers the room temperature dielectric constant [5].…”

Section: Introductionmentioning

confidence: 99%

Complex Impedance Spectroscopy of Ba0.8Pb0.2TiO3 Synthesized by Mechano Chemical Activation

Singh¹,

Kumar²,

Prakash

et al. 2013

KEM

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Single phase Ba0.8Pb0.2TiO3 (BPT) with improved dielectric and ferroelectric properties was synthesized by Mechano-Chemical Activation (MCA). It is also interesting to investigate the change in different electrical parameters of the sample synthesized by MCA. In the present work, we are reporting the Complex Impedance spectroscopy (CIS) of BPT ceramics synthesized by MCA. Complex quantities like electric modulus (M*) and impedance (Z*) were calculated from measured dielectric constant (ε) and tanδ measured as a function of frequency (70Hz-1MHz) upto 500oC. To understand the relaxation behavior, real and imaginary parts of M* and Z* were plotted as a function of frequency at different temperatures. Typical Cole-Cole plots of Z′ and Z″ indicate the contribution from both grain and grain boundary to the relaxation mechanism.

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