Combustion synthesis of nickel ferrite powders: Effect of NaClO4 content on their characteristics and magnetic properties

Intaphong, Prakasit; Radklaochotsatain, Nutwara; Somraksa, Wararat; Musigawon, Suppanat; Kongthong, Naruepon; Kaemkit, Ramnaree; Samadoloh, Sukanya; Chanadee, Tawat

doi:10.1016/j.cap.2019.02.006

Cited by 10 publications

(3 citation statements)

References 31 publications

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“…Finally, the as-leached nickel ferrite powder was dried in an oven at 100°C for 24 h to obtain as-prepared nickel ferrite powder. This procedure was adapted from and followed a previous report [9].…”

Section: Preparation Of Nickel Ferrite Powder By Csmentioning

confidence: 99%

“…where ε i is the dielectric loss, D is the dissipation factor obtained from the measurement data and ε r is the dielectric constant obtained from Equation (9).…”

Section: Magnetic and Electrical Properties Investigationmentioning

confidence: 99%

“…It proceeds by a combustion wave front that moves with a spiral heat convection through compacted reactants in a highly exothermic and self-sustaining chemical reaction between the reactants and a suitable fuel. CS had produced single-phase materials requiring minimal or no treatment and was an inexpensive process with a high production rate [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Nickel ferrite ceramics: combustion synthesis, sintering, characterization, and magnetic and electrical properties

Vepulanont

Sa-nguanprang

Buapoon

et al. 2021

Journal of Asian Ceramic Societies

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Nickel ferrite powders were prepared by combustion synthesis of Fe, Fe 2 O 3 and NiO using NaClO 4 as fuel. Nickel ferrite ceramics were fabricated by single-step and two-step sintering under various conditions. The effects of each sintering process on the densification, microstructure and properties of the ceramics were investigated. X-ray diffraction analysis of asprepared powders and as-fabricated ceramics confirmed a single-phase NiFe 2 O 4 with a cubic spinel crystal structure. Single-step sintering produced ceramics with a wider density range (3.63-3.97 g/cm 3 ) than two-step sintering (3.74-3.84 g/cm 3 ) and a wider grain size range (1.10-2.31 µm compared to 1.30-1.37 µm). Two-step sintering produced ceramics with greater microhardness (135.00-172.60 HV) than single-step sintering (65.33-153.00 HV). In both methods, higher sintering temperatures produced ceramics with greater saturation magnetization (M s ). The highest M s values were 62.84 emu/g from single-step sintering at 1200°C and 70.00 emu/g from two-step sintering at T 2 = 1150°C: H c was, respectively, 31.18 and 22.00 Oe. The ceramic sintered by the two-step method at T 2 of 1150°C presented superparamagnetic-like behavior of multi-domain magnetic materials, with high µ i and very low H c . The higher electrical resistivity (R), dielectric constant (ε r ) and quality factor of this ceramic support highfrequency data storage applications.

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Section: Preparation Of Nickel Ferrite Powder By Csmentioning

confidence: 99%

“…where ε i is the dielectric loss, D is the dissipation factor obtained from the measurement data and ε r is the dielectric constant obtained from Equation (9).…”

Section: Magnetic and Electrical Properties Investigationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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