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Structural and Electrical Properties of BiFeO3 Nanoparticles Synthesized by Microcontroller based Thermogravimetric Analyser

Author(s): P.H. Suresha

Journal: Journal of Current Engineering Research
ISSN 2250-2637

Volume: 3;
Issue: 1;
Date: 2013;
Original page

Keywords: Microcontroller | Thermogravimetric analyser | Multiferroics | Nanomaterials | Dielectric measurements

Bismuth ferrite (BiFeO3) nanoparticles were successfully synthesized by a home built microcontroller based thermogravimetric analyser (MTGA). Microcontroller based thermogravimetric analyzer (MTGA) is an home built technique used to study the thermal decomposition of inorganic solids, chemical properties of intermediate and final products, synthetic conditions and synthesis of nanomaterials. The MTGA has additional features like controlled gas delivery system suitable for synthesis of nanomaterials in various gas atmospheres. This paper reports the structural, thermal and electrical properties of BiFeO3 synthesized by MTGA. The structural and thermal properties were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and thermogravimetric analysis (TGA). The dielectric constant and dielectric loss were tested at room temperature between 100 Hz to 20 MHz. The results of TGA reveal the ideal conditions for the preparation of nano BFO by different techniques. It was found that structural, thermal and electrical properties of BiFeO3 synthesized by MTGA are in good agreement with that prepared by other techniques like solution combustion method, sol-gel method etc. The microcontroller based thermogravimetric analyser (MTGA) is one of the good techniques for the preparation of nanomaterials.
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