Affiliation:
1. Universiti Malaysia Perlis
2. Universiti Malaysia Perlis (UniMAP)
3. Universidad de Santiago de Chile
Abstract
Barium strontium titanate (BST), Ba0.8Sr0.2TiO3 ceramic prepared using conventional solid-state reaction method has achieved a single phase at 1400 °C. The Ba0.8Sr0.2TiO3 ceramic shows the highest dielectric constant and capacitance at 65°C about 4001 (10 Hz) and 2.92765 x10-9 F, respectively. The conductivity of Ba0.8Sr0.2TiO3 ceramic is in between the range of semi-insulator and insulator materials, and this composition also has exhibited the positive temperature coefficient resistivity (PTCR) properties jump of one order of magnitude from 2.06202 x 107 Ω.cm to 3.00958 x 108 Ω.cm measured at 1 kHz.
Publisher
Trans Tech Publications Ltd