Effect of Composition on Structural and Magnetic Properties of Nanocrystalline Ferrite Li0.5Sm x Fe2.5–x O4

Mahmoudi, M.; Kavanlouei, Majid; Maleki-Ghaleh, H.

doi:10.1007/s11106-015-9676-9

Cited by 4 publications

(2 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yet, along with ferrite, a small amount of a crystalline secondary phase identified as SmFeO 3 is formed (PDF No. 00-039-1490) [65,73]. It should be noted that SmFeO 3 is a non-magnetic material that exhibits an orthorhombic space group (Pnma).…”

Section: X-ray Diffraction Analysis Of Synthesized Ferritesmentioning

confidence: 99%

See 1 more Smart Citation

TG, DSC, XRD, and SEM studies of the substituted lithium ferrite formation from milled Sm2O3/Fe2O3/Li2CO3 precursors

Lysenko

Vlasov²,

Nikolaeva³

et al. 2022

J Therm Anal Calorim

View full text Add to dashboard Cite

Formation of substituted lithium ferrite Li 0.5 Sm x Fe 2.5-x O 4 (where x = 0.06 and 0.2) from Sm 2 O 3 /Fe 2 O 3 /Li 2 CO 2 precursors was studied by X-ray diffraction analysis, thermogravimetry, differential scanning calorimetry, and scanning electron microscopy. The mixture of powders was subjected to preliminary mechanical activation in a planetary mill. We analyzed samples based on the precursors and synthesized at 900 °C for 4 h in a laboratory furnace. It was found that ball milling of the precursors mixture in a planetary mill increases the powder reactivity. In spite of this, no substituted lithium ferrites were formed. It was shown that a two-phase composite that consists of pure lithium ferrite Li 0.5 Fe 2.5 O 4 and SmFeO 3 is formed during synthesis. An increase in the Sm 2 O 3 content in the initial mixture provides an increase in the amount of the formed SmFeO 3 phase. The synthesis of Li 0.5 Fe 2.5 O 4 ferrite was confirmed by XRD analysis data, the Curie temperature (627-630 °C) measured using TG analysis in a magnetic field, and by the presence of an endothermic peak on the DSC curve corresponding to the order-disorder transition in the Li 0.5 Fe 2.5 O 4 phase.

show abstract

Section: X-ray Diffraction Analysis Of Synthesized Ferritesmentioning

confidence: 99%

“…As shown in [34,35,40,64,65], the introduction of rare earth elements, including Sm, is also of significant effect on the electromagnetic properties of lithium ferrites. In most studies, synthesis of ferrites with rare earth elements and their microstructural characteristics were investigated using X-ray diffraction analysis.…”

Section: Introductionmentioning

confidence: 99%