Phase formation, electric and magnetic properties of multiferroic 0.7Ba0.9Ca0.1TiO3-0.3Ni0.6Zn0.4Fe2O4 composites ceramics synthesized by the solid-state combustion technique

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dc.contributor.authorSonchaopri, Nutkamon
dc.contributor.authorSomsri, Widchaya
dc.contributor.authorChootin, Suphornphun
dc.contributor.authorVittayakorn, Naratip
dc.contributor.authorPinitsoontorn, Supree
dc.contributor.authorRittidech, Aurawan
dc.contributor.authorJantaratana, Pongsakorn
dc.contributor.authorBongkarn, Theerachai
dc.date.accessioned2026-08-06T10:48:18Z
dc.date.available2026-08-06T10:48:18Z
dc.date.issued2025-01-01
dc.description.abstractMultiferroic composite materials have both ferroelectric and ferromagnetic properties. In addition, the electrical and magnetic properties of these ceramics are primarily affected by the preparation temperature. Therefore, this study investigates the effect of the sintering temperature on the phase structure, microstructure, electrical and magnetic properties of multiferroic 0.7Ba<inf>0.9</inf>Ca<inf>0.1</inf>TiO<inf>3</inf>-0.3Ni<inf>0.6</inf>Zn<inf>0.4</inf>Fe<inf>2</inf>O<inf>4</inf> (BCT-NZF) composite ceramics synthesized by the solid-state combustion technique. The samples were sintered in a range of 1250–1350 ºC for 2 h. The X-ray diffraction (XRD) analysis revealed that all ceramics exhibited coexisting phases, with tetragonal perovskite, orthorhombic perovskite and cubic spinel phases, suggesting a complex crystalline structure. The average grain size of the ferroelectric and ferrite grains increased from 0.59 to 1.41 µm and 0.67 to 3.13 µm, respectively, moreover, ε and tanδ at 1 MHz tended to increase from 257.4 to 572.3 and 0.05 to 0.24, respectively, with increased sintering temperature. Density and saturated magnetization (M<inf>s</inf>) increased from 5.36 to 5.45 g/cm<sup>3</sup> and 19.36 to 20.38 emu/g, respectively, while remanent magnetization (M<inf>r</inf>) and coercivity (H<inf>d</inf><inf>c</inf>) decreased from 0.38 to 0.33 emu/g and 25.03 to 20.17 Oe, respectively, when the sintering temperature was increased from 1250 to 1300 °C. Above 1300 °C, the density and M<inf>s</inf> decreased, while M<inf>r</inf> and H<inf>d</inf><inf>c</inf> increased. With the optimum sintering temperature of 1300 °C, the multiferroic BCT-NZF composite ceramics exhibited the highest density (5.45 g/cm<sup>3</sup>), low leakage P-E loop, good magnetic properties (M<inf>s</inf> = 20.38 emu/g) and high magnetoelectric coupling (α<inf>ME</inf> = 4.03 mV/cm•Oe), indicating this ceramic was suitable for application in magnetoelectric devices.
dc.identifier.citationJournal of the Korean Ceramic Society, 62(1), 208-220, 2025
dc.identifier.doi10.1007/s43207-024-00461-2
dc.identifier.issn12297801
dc.identifier.other2-s2.0-85211935644
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16207
dc.sourceJournal of the Korean Ceramic Society
dc.subjectBCT-NZF
dc.subjectFerroelectric
dc.subjectFerromagnetic
dc.subjectMultiferroic
dc.subjectSolid-state combustion
dc.titlePhase formation, electric and magnetic properties of multiferroic 0.7Ba0.9Ca0.1TiO3-0.3Ni0.6Zn0.4Fe2O4 composites ceramics synthesized by the solid-state combustion technique
dc.typeArticle

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