Effect of different raw materials on the microwave dielectric properties of Ba2Ti9O20 ceramics

Dibarium nona titanate (Ba2Ti9O20) dielectric ceramics were prepared through a solid-state route using raw materials from different manufacturers. The dielectric resonator properties were studied in the microwave frequency region. The impurities in the raw materials drastically affected the microwav...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2004-06, Vol.15 (6), p.345-349
Main Authors: MANOJ RAAMAVARMA, SREEMOOLANADHAN, H, CHANDRASEKARAN, V
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties
Dielectric properties of solids and liquids
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Niobates, titanates, tantalates, pzt ceramics, etc
Physics
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Summary:Dibarium nona titanate (Ba2Ti9O20) dielectric ceramics were prepared through a solid-state route using raw materials from different manufacturers. The dielectric resonator properties were studied in the microwave frequency region. The impurities in the raw materials drastically affected the microwave dielectric properties of Ba2Ti9O20. The presence of TiO2, which reduces the temperature coefficient of resonant frequency, could be identified clearly by XRD. 26 refs.
ISSN:0957-4522
1573-482X
DOI:10.1023/B:JMSE.0000025675.25551.9c