The influence of Cd doping on the surface acoustic wave properties of Sm-modified PbTiO3 ceramics

Sheng Yuan Chu; Te Yi Chen

doi:10.1016/S0955-2219(03)00370-4

The influence of Cd doping on the surface acoustic wave properties of Sm-modified PbTiO₃ ceramics

Sheng Yuan Chu, Te Yi Chen

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The Sm-modified lead titanate ceramics with a composition of (Pb_0.85-xCd_xSm_0.1)(Ti_0.98 Mn_0.02)O₃; x=0.01-0.08 were prepared by conventional mixed-oxide method. Dielectric and piezoelectric properties of these doped ceramics were measured at room temperature. Microstructural and phase content analyses have been carried out using SEM and XRD. The Curie point versus the amount of Cd composition was also investigated. Surface acoustic wave (SAW) properties, including phase velocity, electromechanical coupling coefficient and temperature coefficient of frequency, were measured. The experiments successfully showed that Cd additive is helpful to obtain higher phase velocity and high electromechanical coupling coefficient, and improve the temperature coefficient of frequency (TCF). In addition, it also reduces the sintering temperature of processing. The SAW properties of our samples (V_p, IL, k², and TCF) compare well to the commercially-made PZT and PT samples.

Original language	English
Pages (from-to)	1993-1998
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	24
Issue number	7
DOIs	https://doi.org/10.1016/S0955-2219(03)00370-4
Publication status	Published - 2004 Jul

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1016/S0955-2219(03)00370-4

Cite this

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title = "The influence of Cd doping on the surface acoustic wave properties of Sm-modified PbTiO3 ceramics",

abstract = "The Sm-modified lead titanate ceramics with a composition of (Pb0.85-xCdxSm0.1)(Ti0.98 Mn0.02)O3; x=0.01-0.08 were prepared by conventional mixed-oxide method. Dielectric and piezoelectric properties of these doped ceramics were measured at room temperature. Microstructural and phase content analyses have been carried out using SEM and XRD. The Curie point versus the amount of Cd composition was also investigated. Surface acoustic wave (SAW) properties, including phase velocity, electromechanical coupling coefficient and temperature coefficient of frequency, were measured. The experiments successfully showed that Cd additive is helpful to obtain higher phase velocity and high electromechanical coupling coefficient, and improve the temperature coefficient of frequency (TCF). In addition, it also reduces the sintering temperature of processing. The SAW properties of our samples (Vp, IL, k2, and TCF) compare well to the commercially-made PZT and PT samples.",

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AB - The Sm-modified lead titanate ceramics with a composition of (Pb0.85-xCdxSm0.1)(Ti0.98 Mn0.02)O3; x=0.01-0.08 were prepared by conventional mixed-oxide method. Dielectric and piezoelectric properties of these doped ceramics were measured at room temperature. Microstructural and phase content analyses have been carried out using SEM and XRD. The Curie point versus the amount of Cd composition was also investigated. Surface acoustic wave (SAW) properties, including phase velocity, electromechanical coupling coefficient and temperature coefficient of frequency, were measured. The experiments successfully showed that Cd additive is helpful to obtain higher phase velocity and high electromechanical coupling coefficient, and improve the temperature coefficient of frequency (TCF). In addition, it also reduces the sintering temperature of processing. The SAW properties of our samples (Vp, IL, k2, and TCF) compare well to the commercially-made PZT and PT samples.

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The influence of Cd doping on the surface acoustic wave properties of Sm-modified PbTiO₃ ceramics

Abstract

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