Direct-current field dependence of dielectric properties in alumina-doped barium strontium titanate

Long Wu; Yih Chien Chen; Cheng Liang Huang; Yi Ping Chou; Yuan Tu Tsai

doi:10.1111/j.1151-2916.2000.tb01455.x

Direct-current field dependence of dielectric properties in alumina-doped barium strontium titanate

Long Wu, Yih Chien Chen, Cheng Liang Huang, Yi Ping Chou, Yuan Tu Tsai

Department of Electrical Engineering

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

50 Citations (Scopus)

Abstract

The dielectric properties of (Ba_0.6Sr_0.4)TiO₃ and Al₂O₃-doped (Ba_0.6Sr_0.4)TiO₃ have been characterized. The grain size of the specimen is maximum for (Ba_0.6Sr_0.4)TiO₃ that has been doped with 1 wt% Al₂O₃. The density and the real part of the relative dielectric constant each decrease as the Al₂O₃ content increases. The loss factor is minimum for (Ba_0.6Sr_0.4)TiO₃ that has been doped with 2 wt% Al₂O₃. The dielectric constant of the specimens decreases as the applied dc field increases. The influence of the dc field on the loss factor is much less than that on the dielectric constant. The tunability is approx. 24% for (Ba_0.6Sr_0.4)TiO₃ that has been doped with 1 wt% Al₂O₃.

Original language	English
Pages (from-to)	1713-1719
Number of pages	7
Journal	Journal of the American Ceramic Society
Volume	83
Issue number	7
DOIs	https://doi.org/10.1111/j.1151-2916.2000.tb01455.x
Publication status	Published - 2000 Jan 1

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.2000.tb01455.x

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title = "Direct-current field dependence of dielectric properties in alumina-doped barium strontium titanate",

abstract = "The dielectric properties of (Ba0.6Sr0.4)TiO3 and Al2O3-doped (Ba0.6Sr0.4)TiO3 have been characterized. The grain size of the specimen is maximum for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3. The density and the real part of the relative dielectric constant each decrease as the Al2O3 content increases. The loss factor is minimum for (Ba0.6Sr0.4)TiO3 that has been doped with 2 wt% Al2O3. The dielectric constant of the specimens decreases as the applied dc field increases. The influence of the dc field on the loss factor is much less than that on the dielectric constant. The tunability is approx. 24% for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3.",

author = "Long Wu and Chen, {Yih Chien} and Huang, {Cheng Liang} and Chou, {Yi Ping} and Tsai, {Yuan Tu}",

year = "2000",

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doi = "10.1111/j.1151-2916.2000.tb01455.x",

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T1 - Direct-current field dependence of dielectric properties in alumina-doped barium strontium titanate

AU - Wu, Long

AU - Chen, Yih Chien

AU - Huang, Cheng Liang

AU - Chou, Yi Ping

AU - Tsai, Yuan Tu

PY - 2000/1/1

Y1 - 2000/1/1

N2 - The dielectric properties of (Ba0.6Sr0.4)TiO3 and Al2O3-doped (Ba0.6Sr0.4)TiO3 have been characterized. The grain size of the specimen is maximum for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3. The density and the real part of the relative dielectric constant each decrease as the Al2O3 content increases. The loss factor is minimum for (Ba0.6Sr0.4)TiO3 that has been doped with 2 wt% Al2O3. The dielectric constant of the specimens decreases as the applied dc field increases. The influence of the dc field on the loss factor is much less than that on the dielectric constant. The tunability is approx. 24% for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3.

AB - The dielectric properties of (Ba0.6Sr0.4)TiO3 and Al2O3-doped (Ba0.6Sr0.4)TiO3 have been characterized. The grain size of the specimen is maximum for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3. The density and the real part of the relative dielectric constant each decrease as the Al2O3 content increases. The loss factor is minimum for (Ba0.6Sr0.4)TiO3 that has been doped with 2 wt% Al2O3. The dielectric constant of the specimens decreases as the applied dc field increases. The influence of the dc field on the loss factor is much less than that on the dielectric constant. The tunability is approx. 24% for (Ba0.6Sr0.4)TiO3 that has been doped with 1 wt% Al2O3.

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Direct-current field dependence of dielectric properties in alumina-doped barium strontium titanate

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