Ferroelectric and Ferromagnetic Properties of K-doped 0.7BiFeO3-0.3BaTiO3 Multiferroic Ceramics

Lead-free and multiferroic 0.7BiFeO 3- 0.3BaTiO 3 ceramics doped with K (0.5, 1.0, 3.0 and 5.0 mol%) have been successfully prepared by a solid state mechanical milling technique. The single phase perovskite was found at calcination temperature of 900°C for 6 h. The effects of K doping on the crysta...

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Bibliographic Details
Published inFerroelectrics Vol. 451; no. 1; pp. 109 - 115
Main Authors Prasatkhetragarn, A., Jantaratana, P., Vittayakorn, N., Yotburut, B., Yimnirun, R.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.01.2013
Subjects
BF-BT
ferroelectric
ferromagnetic
multiferroic
Potassium-doped
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Summary:Lead-free and multiferroic 0.7BiFeO 3- 0.3BaTiO 3 ceramics doped with K (0.5, 1.0, 3.0 and 5.0 mol%) have been successfully prepared by a solid state mechanical milling technique. The single phase perovskite was found at calcination temperature of 900°C for 6 h. The effects of K doping on the crystal structure, microstructure, magnetic and electrical properties of lead-free 0.7BiFeO 3- 0.3BaTiO 3 ceramics were investigated and discussed. The fracture micrographs of specimens elucidate the grain growth behavior with increasing K content up to 3.0 mol%. The weak ferromagnetic and ferroelectric properties were observed in rhombohedrally-distorted 0.7BiFeO 3- 0.3BaTiO 3 perovskite ceramic. However, the addition of K into 0.7BiFeO 3- 0.3BaTiO 3 has been found to improve the ferroelectric and ferromagnetic properties , with the optimized properties obtained at 3.0 mol% content of K.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2013.839282