The influence of Calcium doping on structural and electrical properties of ferroelectric Lead Titanate ceramic

A, Nagarbawadi M.; S, Jangade P.; T, Bagwan S.

doi:10.9790/4861-06321519

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The dc conductivity of lead titanate doped with Ca is influenced by Ca content at room temperature and near transition temperature. The T c temperature shifts to lower values by increasing Ca addition [2].…”

Section: Introductionmentioning

confidence: 93%

Structural Morphological and Dielectric Properties of Pb1-xNixTiO3 Doped with Ni

Tawfik¹,

Hemeda²,

Hemeda³

et al. 2016

OJAppS

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In this paper, we have reported a conformable PbTiO 3 ceramics doped with Ni by standard double sintering technique as well as chemical co-precipitation method which were successfully synthesized by means of carefully controlled processing parameters. Single phase formation was confirmed through X-Ray Diffraction (XRD) analysis, IR spectroscopy, SEM micrograph and TEM images. Discussion and comparison between both preparation methods were made on the basis of observed results. The tetragonality c/a decreased from 1.049 to 1.0276 for ceramic samples and decreased from 1.06519 to 1.0365 for co-precipitation samples by increasing Ni content. TEM images show small ferroelectric domains of about 3 to 14 nm for the co-precipitation sample and 26 to 48 nm for the ceramic samples. The SEM of coprecipitation samples shows that the microstructure is very dense. The behavior of ε identifies that our samples are nonrelaxor. Increasing the Ni concentration increases the value of dielectric constant and the T c is shifted to lower temperature.

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Section: Introductionmentioning

confidence: 93%

Structural Morphological and Dielectric Properties of Pb1-xNixTiO3 Doped with Ni

Tawfik¹,

Hemeda²,

Hemeda³

et al. 2016

OJAppS

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Preparation and Characterization of Ca +2 modified PbTi0 3 ceramics by HEBM technique

Kumari

Sinha

Chaudhary

2017

Materials Today: Proceedings

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Magnetron-Sputtered Lead Titanate Thin Films for Pyroelectric Applications: Part 2—Electrical Characteristics and Characterization Methods

Fathipour,

Xu,

Rana

2024

Materials

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Pyroelectric materials are naturally electrically polarized and exhibits a built-in spontaneous polarization in their unit cell structure even in the absence of any externally applied electric field. These materials are regarded as one of the ideal detector elements for infrared applications because they have a fast response time and uniform sensitivity at room temperature across all wavelengths. Crystals of the perovskite lead titanate (PbTiO3) family show pyroelectric characteristics and undergo structural phase transitions. They have a high Curie temperature (the temperature at which the material changes from the ferroelectric (polar) to the paraelectric (nonpolar) phase), high pyroelectric coefficient, high spontaneous polarization, low dielectric constant, and constitute important component materials not only useful for infrared detection, but also with vast applications in electronic, optic, and MEMS devices. However, the preparation of large perfect and pure single crystals PbTiO3 is challenging. Additionally, difficulties arise in the application of such bulk crystals in terms of connection to processing circuits, large size, and high voltages required for their operation. In this part of the review paper, we explain the electrical behavior and characterization techniques commonly utilized to unravel the pyroelectric properties of lead titanate and its derivatives. Further, it explains how the material preparation techniques affect the electrical characteristics of resulting thin films. It also provides an in-depth discussion of the measurement of pyroelectric coefficients using different techniques.

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The influence of Calcium doping on structural and electrical properties of ferroelectric Lead Titanate ceramic

Cited by 3 publications

References 11 publications

Structural Morphological and Dielectric Properties of Pb1-xNixTiO3 Doped with Ni

Structural Morphological and Dielectric Properties of Pb1-xNixTiO3 Doped with Ni

Preparation and Characterization of Ca +2 modified PbTi0 3 ceramics by HEBM technique

Magnetron-Sputtered Lead Titanate Thin Films for Pyroelectric Applications: Part 2—Electrical Characteristics and Characterization Methods

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