The various sintered samples comprising of 72 wt%(Al2O3) : 28 wt%(SiO2) based ceramics were fabricated using a colloidal processing route. The phase analysis of the ceramics was performed using an X-ray diffractometer (XRD) at room temperature confirming the presence of Al2O5Si and Al5.33Si0.67O9.33. The surface morphology of the fracture surface of the different sintered samples having different sizes of grain distribution. The resistive and capacitive properties of the three different sintered samples at frequency sweep (1 kHz to 1 MHz). The contribution of grain and the non-Debye relaxation process is seen for various sintered samples in the Nyquist plot. The ferroelectric loop of the various sintered sample shows a slim shape giving rise to low remnant polarization. The excitation performance of the sample at a constant electric signal has been examined utilizing a designed electrical circuit. The above result suggests that the prepared lead-free ceramic can act as a base for designing of dielectric capacitors or resonators.

Abstract
1. Introduction
2. Experimental Procedure
3. Results and Discussion
4. Conclusions
References

• Manisha Sahu(Department of Electronics and Instrumentation, Siksha O Anusandhan (Deemed to be University)) Corresponding author
• Basanta Kumar Panigrahi(Department of Electrical Engineering, Siksha O Anusandhan (Deemed to be University))
• Hoe Joon Kim(Department of Robotics Engineering, Daegu Gyeongbuk Institute of Science & Technology (DGIST))
• PL Deepti(Department of Physics, Veer Surendra Sai University of Technology)
• Sugato Hajra(Department of Electronics and Instrumentation, Siksha O Anusandhan (Deemed to be University))
• Kalyani Mohanta(Department of Ceramic Engineering, Indian Institute of Technology-Banaras Hindu University)