Abstract
A lead-free solid solution, of a composition Ba0.97La0.02Ti1-xNb4x/5O3 (for x = 0.00 and 0.10) (noted BLT, BLT0.9Nb0.08), was elaborated by a low-cost molten-salt ceramic process. This attempt focused on the Voltage Stability of the electrical properties of ceramics. Ceramics confirm a slight rise in the real and imaginary parts of the complex impedance on the application of field levels. These values considered using AC impedance spectroscopy were reduced with intensifying Nb concentration, as well as augmented by the application of d.c-bias voltages. The complex impedance plot shows a single impedance semicircle, distinguished over the high and low frequencies (f). The equivalent circuit configuration was fitted via (EIS) spectra analyzer. The electrical properties obtained from the complex electric modulus show a conduction process down to the short-range mobility of charge carriers. The substitution of Nb5+ ions on B sites leads to the rise of a band gap. BLTi1-xNb4x/5O3 (for x = 0.00 and 0.1) shows remarkable frequency-independent relatively studied properties, it is a potential aspect for devices.