Influence of ZrO2 on Dielectric Properties of Ba1-xSrxTiO3 Ceramics

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Ba1-xSrxTiO3 ceramic (BST) was one of the promising materials applied in phased array antennas due to its excellent dielectric properties. Ba1-xSrxTiO3 ceramic was prepared by traditional solid state reactions. Effects of different amount of ZrO2 as additive upon the dielectric properties of BST were investigated. The analyzed results showed that, as the amount of ZrO2 increasing, the dielectric constant and temperature dependence of dielectric constant of this ceramic both decreased, while its dielectric tunability kept high value.

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Edited by:

Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li

Pages:

79-80

Citation:

H. Xue et al., "Influence of ZrO2 on Dielectric Properties of Ba1-xSrxTiO3 Ceramics ", Key Engineering Materials, Vols. 280-283, pp. 79-80, 2005

Online since:

February 2007

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$41.00

[1] A.K. Tagantsev, V.O. Sherman and K.F. Astafiev: J. Electroceram. Vol. 11 (2003), p.5.

[20] 40 60 80.

2000 4000 6000 8000 10000 12000 Permittivity Temperature (oC).

% ZrO2.

[1] % ZrO2.

[2] % ZrO2.

[5] % ZrO2.

[10] % ZrO2 Fig. 3 Temperature dependence of permittivity at 10 kHz for the BST system.

300 600 900 1200 2000 3000 4000 5000 0 % ZrO2.

[1] % ZrO2.

[2] % ZrO2.

[5] % ZrO2.

[10] % ZrO2 Permittivity E (V/mm) Fig. 4 Relative dielectric constant of BST system mixed with ZrO2 as a function of applied DC bias fields.