Dielectric tunability in (1-x)[Pb(Mg 1/3Nb 2/3)O 3]-xPbTiO 3 ceramics for tunable devices application

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Data

2010-12-01

Autores

Guarany, C. A.
Guerra, J. D S
Araujo, E. B. [UNESP]
Lima, E. C. [UNESP]

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Resumo

The dielectric properties of the 0.65[Pb(Mg 1/3Nb 2/3)O 3]-0.35PbTiO 3 ferroelectric ceramic composition were investigated viewing the capability to be used for tunable microwave applications. The dielectric response has been studied for three selected temperatures (300 K, 370 K and 400 K), below the paraelectric- ferroelectric phase transition temperature, as a function of the applied 'bias' electric field. The obtained dielectric tunability was found to be around 60 %, under an electric field of 19 kV/cm, which makes the studied ceramic composition an excellent candidate for application in the electro-electronic industry, as tunable devices. © 2010 IEEE.

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Ceramics, Dielectric properties), Ferroelectrics, Ceramic compositions, Dielectric response, Dielectric tunability, Electronic industries, Ferroelectric phase transition temperatures, Paraelectrics, Tunable device, Tunable microwave applications, Ceramic materials, Electric fields, Ferroelectricity, Lead, Ferroelectric materials

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Proceedings of the 2010 IEEE International Symposium on the Applications of Ferroelectrics, ISAF 2010, Co-located with the 10th European Conference on the Applications of Polar Dielectrics, ECAPD 2010.