Abstract
To synthesizes the polycrystalline perovskite ceramic compounds (That is, (BiFeO3)1-x + (LaFeO3)x, having x = 0.0, 0.1, 0.2 and 0.3) (BFO-LFO), by using an elevated temperatures solid state reaction technique. Powder X-Ray diffraction (P-XRD) was employed for structural analysis to validate the creation of single phase materials and the phase structure of BFO-LFO changing from rhombohedral to tetragonal. The morphological characteristics of the surface of ceramic composite pellets were examined by using a scanning electron microscopy at the ambient temperature, which revealed a uniform arrangement of grains with very little porosity and varying sizes on the samples' surface. At various temperatures (25-500 °C), the frequency-temperature connection of dielectric and electric characteristics was studied utilizing dielectric and complex impedance spectroscopy. Both grains and grain boundaries have been demonstrated to have a substantial impact on the electrical sensitivity of the materials. All BFO-LFO samples exhibited a negative temperature coefficient of resistance.
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