Dielectric and piezoelectric properties of microwave sintered PZT

P. K. Sharma; Z. Ounaies; V. V. Varadan; V. K. Varadan

doi:10.1088/0964-1726/10/5/304

Dielectric and piezoelectric properties of microwave sintered PZT

P. K. Sharma, Z. Ounaies, V. V. Varadan, V. K. Varadan

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56 Scopus citations

Abstract

In this paper, the dielectric and piezoelectric properties of sol-gel derived and microwave sintered PZT are presented. It has been observed that the microwave sintering results in a material with a higher dielectric constant (≈1600) than that sintered by conventional methods (≈1480). It also offers a low dielectric loss tangent and improved d₃₃. Pellets sintered by the microwave method at 1100°C are found to have high hardness (≈1460 MPa) on the Vickers hardness scale with a theoretical density of ≈94% in comparison with that sintered by the conventional method (i.e. ≈980 MPa and ≈84%). From a hysteresis study, the remanent polarization (P_r) and coercive field (E_c) of the microwave sintered PZT are observed to be 340 mC m^-2 and 10 kV cm^-1, respectively. The value of E_c in the microwave sintered sample is low and this property is desirable for device fabrication of PZT-based smart structures.

Original language	English (US)
Pages (from-to)	878-883
Number of pages	6
Journal	Smart Materials and Structures
Volume	10
Issue number	5
DOIs	https://doi.org/10.1088/0964-1726/10/5/304
State	Published - Oct 2001

All Science Journal Classification (ASJC) codes

Signal Processing
Civil and Structural Engineering
Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics
Mechanics of Materials
Electrical and Electronic Engineering

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title = "Dielectric and piezoelectric properties of microwave sintered PZT",

abstract = "In this paper, the dielectric and piezoelectric properties of sol-gel derived and microwave sintered PZT are presented. It has been observed that the microwave sintering results in a material with a higher dielectric constant (≈1600) than that sintered by conventional methods (≈1480). It also offers a low dielectric loss tangent and improved d33. Pellets sintered by the microwave method at 1100°C are found to have high hardness (≈1460 MPa) on the Vickers hardness scale with a theoretical density of ≈94% in comparison with that sintered by the conventional method (i.e. ≈980 MPa and ≈84%). From a hysteresis study, the remanent polarization (Pr) and coercive field (Ec) of the microwave sintered PZT are observed to be 340 mC m-2 and 10 kV cm-1, respectively. The value of Ec in the microwave sintered sample is low and this property is desirable for device fabrication of PZT-based smart structures.",

author = "Sharma, {P. K.} and Z. Ounaies and Varadan, {V. V.} and Varadan, {V. K.}",

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T1 - Dielectric and piezoelectric properties of microwave sintered PZT

AU - Sharma, P. K.

AU - Ounaies, Z.

AU - Varadan, V. V.

AU - Varadan, V. K.

PY - 2001/10

Y1 - 2001/10

N2 - In this paper, the dielectric and piezoelectric properties of sol-gel derived and microwave sintered PZT are presented. It has been observed that the microwave sintering results in a material with a higher dielectric constant (≈1600) than that sintered by conventional methods (≈1480). It also offers a low dielectric loss tangent and improved d33. Pellets sintered by the microwave method at 1100°C are found to have high hardness (≈1460 MPa) on the Vickers hardness scale with a theoretical density of ≈94% in comparison with that sintered by the conventional method (i.e. ≈980 MPa and ≈84%). From a hysteresis study, the remanent polarization (Pr) and coercive field (Ec) of the microwave sintered PZT are observed to be 340 mC m-2 and 10 kV cm-1, respectively. The value of Ec in the microwave sintered sample is low and this property is desirable for device fabrication of PZT-based smart structures.

AB - In this paper, the dielectric and piezoelectric properties of sol-gel derived and microwave sintered PZT are presented. It has been observed that the microwave sintering results in a material with a higher dielectric constant (≈1600) than that sintered by conventional methods (≈1480). It also offers a low dielectric loss tangent and improved d33. Pellets sintered by the microwave method at 1100°C are found to have high hardness (≈1460 MPa) on the Vickers hardness scale with a theoretical density of ≈94% in comparison with that sintered by the conventional method (i.e. ≈980 MPa and ≈84%). From a hysteresis study, the remanent polarization (Pr) and coercive field (Ec) of the microwave sintered PZT are observed to be 340 mC m-2 and 10 kV cm-1, respectively. The value of Ec in the microwave sintered sample is low and this property is desirable for device fabrication of PZT-based smart structures.

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Dielectric and piezoelectric properties of microwave sintered PZT

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