Solid State Science and Technology, Vol. 16, No 1 (2008) 197-204
Corresponding Author: firstname.lastname@example.org
DIELECTRIC VARIATIONS OF BARIUM TITANATE ADDITIONS ON
MULLITE- KAOLINITE SAMPLE
Alex See, Jumiah Hassan, Mansor Hashim and W. Mohd. Daud Wan Yusoff
Physics Dept. Faculty of Science, Universiti Putra Malaysia,
43400 UPM, Serdang Malaysia
This research was designed to form better dielectric composite material using one
steady state dielectric with a good dielectric material. Distinct dielectric composites
were successfully produced using locally sourced kaolinite clay. The samples were
made using kaolinite as the base matrix and Barium Titanate (BT) added at varying
ratios. Barium Titanate was synthesized via solid-state reaction using Barium Carbonate
and rutile Titanium (IV) Oxide sintered at 1300°C. Local white kaolinite was used as
the matrix at varying weight ratios. The powders were dry-mixed and made into pellets
for calcination at 1000°C. The dielectric measurements were carried out using HP
4291B Impedance Analyzer dielectric setup. Three samples were prepared, namely
50%BT, 60%BT, and 70%BT. The dielectric measurements were carried out in an LT
furnace at temperatures 30°C - 400°C with frequencies ranging from 10 Hz to 1 MHz.
Measurements showed varying ionic relaxation for all samples.
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