The effect of dopants on the microwave dielectric properties of Ba(Mg0.33Ta0.67)O3 ceramics

Surendran, Kuzhichalil P., Sebastian, Mailadil T., Mohanan, Pezholil, and Jacob, Mohan V. (2005) The effect of dopants on the microwave dielectric properties of Ba(Mg0.33Ta0.67)O3 ceramics. Journal of Applied Physics, 98 (9). pp. 1-9.

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DOI: 10.1063/1.2127124

View at Publisher Website: http://dx.doi.org/10.1063/1.2127124

Abstract

The effect of dopants with different valencies and ionic radii on the densification, structural ordering, and microwave dielectric properties of Ba(Mg1/3Ta2/3)O3 (BMT) is investigated. It is found that dopants such as Sb2O5, MnO, ZrO2, WO3, and ZnO improve the microwave dielectric properties of BMT. Addition of trivalent dopants is detrimental to the cation ordering and dielectric properties of BMT. A correlation between the microwave dielectric properties of BMT and ionic radii of the dopant has been established. The variation of the dielectric properties of pure and doped BMT at cryogenic temperatures is also discussed.

ID Code:791
Item Type:Article (Refereed Research - C1)
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Copyright © 2005 American Institute of Physics. All rights reserved.

Keywords:dielectric properties, BMT, microwave characterisation, dielectric characterisation
FoR Codes:09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 100%
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86 MANUFACTURING > 8610 Ceramics, Glass and Industrial Mineral Products > 861002 Ceramics @ 30%
Deposited On:24 Oct 2006
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