Additives effect on the multiferroic behaviour of BiFeO3�PbTiO3

Singh, RP and Saha, S (2021) Additives effect on the multiferroic behaviour of BiFeO3�PbTiO3. In: Ceramics International .

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Abstract

The use of additives as a sintering aid for promoting densification is well-known in processing structural ceramics. In leaky ferroelectric ceramics (e.g., BiFeO3-based systems), additives are also used to reduce the leakage current, improve the poling efficiency and the piezoelectric response of a material. A less investigated aspect is how additives affect the multiferroic (ferroelectric and magnetic) features of BiFeO3-based ceramics. In this work, we report a systematic study of the effect of different additives viz, MnO2, CuO, K2CO3 and KMnO4 on the microstructural, electromechanical, and magnetic properties of Dy-modified BiFeO3�PbTiO3. We found that all the additives help in the precipitation of the ferrimagnetic dysprosium iron garnet phase. The additives containing potassium (K) tend to suppress the grain size. We found that the best combination of ferroelectric and ferromagnetic behaviour was found in a mixture of additives. © 2021

Item Type:	Journal Article
Publication:	Ceramics International
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd
Keywords:	Bismuth compounds; Copper oxides; Ferroelectric ceramics; Ferroelectricity; Ferromagnetism; Manganese oxide; Potash; Sintering; Solid solutions, 'current; Additive assisted sintering; Additive effects; BiFeO3�PbTiO3 solid solution; Densifications; Ferroelectric; Leaky ferroelectrics; Multiferroic behavior; PbTiO-3; Sintering Aid, Additives
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	29 Nov 2021 11:18
Last Modified:	29 Nov 2021 11:18
URI:	http://eprints.iisc.ac.in/id/eprint/70017

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