ELECTRIC AND MAGNETIC PROPERTIES OF Ni0.475Zn0.475Li0.025Al0.025Fe2O4 DOPED (Bi0.5Na0.5)0.94Ba0.06TiO3 CERAMICS PREPARED BY THE SOLID-STATE COMBUSTION METHOD

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dc.contributor.authorPattanakasem, Wiwat
dc.contributor.authorSookboon, Chirarat
dc.contributor.authorSomsri, Widchaya
dc.contributor.authorVittayakorn, Naratip
dc.contributor.authorPinitsoontorn, Supree
dc.contributor.authorRittidech, Aurawan
dc.contributor.authorJantaratana, Pongsakorn
dc.contributor.authorUdeye, Thanya
dc.contributor.authorBongkarn, Theerachai
dc.date.accessioned2026-08-06T10:48:59Z
dc.date.available2026-08-06T10:48:59Z
dc.date.issued2025-01-01
dc.description.abstractIn this study, we synthesized (1-x)((Bi<inf>0.5</inf>Na<inf>0.5</inf>)<inf>0.94</inf>Ba<inf>0.06</inf>TiO<inf>3</inf>)-x Ni<inf>0.475</inf>Zn<inf>0.475</inf>Li<inf>0.025</inf>Al<inf>0.025</inf>Fe<inf>2</inf>O<inf>4</inf> [(1-x)BNBT-xNZLAF] ceramics with x= 0, 0.05, 0.10, 0.15, and 0.20 using the solid-state combustion method. The phase formation, microstructure, and dielectric, ferroelectric, ferromagnetic, and magnetoelectric properties were investigated. BNBT and NZLAF powders were calcined at 750°C and 900°C for 2 h., respectively. The calcined powders were then mixed in various ratios to produce (1-x)BNBT-xNZLAF composites, which were sintered at 1125°C for 2 h. X-ray diffraction analysis indicated that undoped BNBT ceramics exhibited a typical perovskite structure with coexisting rhombohedral (R) and tetragonal (T) phases. With increasing NZLAF content, the cubic spinel (C) phase emerged with the R and T perovskite phases. Rietveld refinement indicated a higher percentage of the C phase as x increased. When x increased from 0 to 0.10, the average grain size and density increased (from 1.0 to 9.8 m and 5.45 to 5.61 g/cm3, respectively) followed by a drop at higher NZLAF levels. Doping BNBT ceramics with NZLAF resulted in a reduction in the dielectric constant (εr), dielectric loss (tan δ), and remnant polarization (Pr). The undoped BNBT ceramic showed a saturated P-E hysteresis loop, while NZLAF doped ceramics exhibited unsaturated P-E loops and increased leakage current. Magnetic measurements showed a transition from diamagnetic to ferromagnetic behavior with NZLAF doping. As x increased, the remnant magnetization (Mr), saturation magnetization (Ms), and magnetoelectric coefficient also increased (Mr0.058 emu/g, Ms3.594 emu/g, and MEcoefficient 2.64 mV/cm•Oe at x=0.25). These results suggest that NZLAF-doped BNBT ceramics hold potential for multiferroic material applications.
dc.identifier.citationSuranaree Journal of Science and Technology, 32(4), 2025
dc.identifier.doi10.55766/sujst11164
dc.identifier.issn0858849X
dc.identifier.other2-s2.0-105020059247
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/16393
dc.sourceSuranaree Journal of Science and Technology
dc.subjectBNBT
dc.subjectCombustion Method
dc.subjectDielectric
dc.subjectMicrostructure
dc.subjectMultiferroic
dc.subjectNZLAF
dc.titleELECTRIC AND MAGNETIC PROPERTIES OF Ni0.475Zn0.475Li0.025Al0.025Fe2O4 DOPED (Bi0.5Na0.5)0.94Ba0.06TiO3 CERAMICS PREPARED BY THE SOLID-STATE COMBUSTION METHOD
dc.typeArticle

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