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Dielectric properties of strontium titanate filled mullite composites in microwave region


Citation

See, Alex and Hassan, Jumiah and Hashim, Mansor and Wan Yusoff, Wan Mohamad Daud (2007) Dielectric properties of strontium titanate filled mullite composites in microwave region. In: National Physics Conference 2007 (PERFIK 2007), 26-28 Dec. 2007, Kuala Terengganu, Malaysia. (pp. 281-285).

Abstract

This research was designed to form better dielectric composite material using one steady state dielectric with a good dielectric material. Distinct dielectric composite was successfully produced using locally sourced kaolinite clay. The samples were made using kaolinite as the base matrix and Strontium Titanate (ST) added in varying ratios. Strontium Titanate were synthesized via solid‐state reaction using Strontium Carbonate and rutile Titanium (IV) Oxide with sintering at 1300 °C. Local white kaolinite was used to fuse the barium titanate material in varying weight ratios. The powders were dry‐mixed and made into pellets for calcination at 1000 °C. The dielectric measurements were carried out using the HP 4291B Impedance Analyzer dielectric setup. Three samples were prepared, namely 10%ST, 20%ST and 30%ST. The dielectric measurements were carried out at room temperature. Microwave region measurements showed steady state and linear dielectric relaxation ranging from 7 in the control sample and dropping down to 5 in 30%ST. The responses indicate linear relation between ST addition and microwave region dielectric permittivity.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1063/1.2940644
Publisher: American Institute of Physics
Keywords: CMC; Dielectric measurement; Microwave frequency; Mullite; Strontium titanate
Depositing User: Nabilah Mustapa
Date Deposited: 29 Sep 2017 02:26
Last Modified: 29 Sep 2017 02:26
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1063/1.2940644
URI: http://psasir.upm.edu.my/id/eprint/57505
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