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). 094114. 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.


Item ID:	791
Item Type:	Article (Research - C1)
ISSN:	1089-7550
Keywords:	dielectric properties, BMT, microwave characterisation, dielectric characterisation
Additional Information:	Copyright © 2005 American Institute of Physics. All rights reserved.
Date Deposited:	24 Oct 2006
FoR Codes:	09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 100%
SEO Codes:	97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 40% 86 MANUFACTURING > 8617 Communication Equipment > 861799 Communication Equipment not elsewhere classified @ 30% 86 MANUFACTURING > 8610 Ceramics, Glass and Industrial Mineral Products > 861002 Ceramics @ 30%
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