Enhancing the electrical properties of multiferroic materials based on variations in BiFeO3-BaTiO3 weight ratio
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초록
BiFeO3is an example of a multiferroic material widely used for electronic devices, although there have been reports onimpeding current leakage problems arising from non-stoichiometry. This challenge is complicated by the presence of only theBiFeO3 phase. The aim of this research, therefore, is to synthesize multiferroic ceramic materials with a combination of BiFeO3and BaTiO3. Furthermore, an increase in electrical properties have been implicated in the materials’ elevated Magneto Electric(ME) value. The synthesis was performed using the sol-gel method, comprising basic materials of Bi5O(OH)9(NO3)4,Fe(NO3)3.9H2O, C6H8O7, Ba(NO3)2, TiO2, and aquabidestilate. Moreover, the calcination and sinter temperatures used were350 and 700 oC, respectively, while the varied sintering times include 2, 4, and 6 hours. In addition, the modified weight ratioof BaTiO3:BiFeO3 were 1:1, 1:2 and 2:1. The formed phases are evaluated using X-Ray Diffraction Test, while othercharacterizations include electrical properties test and particle size measurement. Therefore, the study outcome has thepotential to produce ceramic powder with particle size 72-81 nm, and samples sintered at 700 oC for 6 h, with a weight ratioof BaTiO3: BiFeO3 = 2:1, possessed the most significant electrical properties.
Abstract
BiFeO3is an example of a multiferroic material widely used for electronic devices, although there have been reports onimpeding current leakage problems arising from non-stoichiometry. This challenge is complicated by the presence of only theBiFeO3 phase. The aim of this research, therefore, is to synthesize multiferroic ceramic materials with a combination of BiFeO3and BaTiO3. Furthermore, an increase in electrical properties have been implicated in the materials’ elevated Magneto Electric(ME) value. The synthesis was performed using the sol-gel method, comprising basic materials of Bi5O(OH)9(NO3)4,Fe(NO3)3.9H2O, C6H8O7, Ba(NO3)2, TiO2, and aquabidestilate. Moreover, the calcination and sinter temperatures used were350 and 700 oC, respectively, while the varied sintering times include 2, 4, and 6 hours. In addition, the modified weight ratioof BaTiO3:BiFeO3 were 1:1, 1:2 and 2:1. The formed phases are evaluated using X-Ray Diffraction Test, while othercharacterizations include electrical properties test and particle size measurement. Therefore, the study outcome has thepotential to produce ceramic powder with particle size 72-81 nm, and samples sintered at 700 oC for 6 h, with a weight ratioof BaTiO3: BiFeO3 = 2:1, possessed the most significant electrical properties.
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