Synthesis, structural, and magnetic characterisation of magnesium-doped lithium ferrite of composition Li0.5Fe2.5O4

Widatallah, H. M.; Johnson, Craig; Berry, Frank J.; Pękała, M.

doi:10.1016/s0038-1098(01)00327-1

Cited by 63 publications

(44 citation statements)

References 8 publications

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“…3 were well mixed and dry-milled in a Retsch PM400 planetary ball mill with a stainless steel vial (250 ml) and balls (20mm) operating at a milling speed of 200 rpm for 190 hours. The powder to ball weight ratio was 1:20.…”

Section: Methodsmentioning

confidence: 99%

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The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4

2006

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Single-phased spinel-related titanium-substituted Li 0.5 Fe 2.5 O 4 has been synthesized by sintering in air a mechanically pre-milled mixture of lithium carbonate, corundum-related iron (III) oxide and the rutile polymorph of titanium (IV) oxide at 700ºC (12h). This temperature is ca. 450-500ºC less than the temperatures at which the material is normally prepared by conventional ceramic techniques. On replacing the rutile polymorph of titanium (IV) oxide in the pre-milled mixture by the anatase form the formation of single-phased titanium substituted Li 0.5 Fe 2.5 O 4 was not achieved even after sintering the mixture at 1000 o C (12h).2

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Section: Methodsmentioning

confidence: 99%

“…The material is extensively studied due to its desirable electric and magnetic properties that render it attractive in microwave and memory-core applications [1][2][3][4]. The magnetic moments on the A-and B-sub-lattices are antiparallel, indicating that the dominant contribution to magnetization comes from the octahedral B-sub-lattice.…”

Section: Introductionmentioning

confidence: 99%

The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4

2006

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“…Lithium iron oxides LiFe 5 O 8 are of increasing scientific interest and are also promising candidates for cathode materials in rechargeable lithium batteries [1,2]. Its high curie temperature, high saturation magnetization and hysterisis loop properties after performance advantages over other spinel ferrites used in microwave frequency and magnetic core applications [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Its high curie temperature, high saturation magnetization and hysterisis loop properties after performance advantages over other spinel ferrites used in microwave frequency and magnetic core applications [1][2][3][4]. Two separate crystallographic ordered and disordered forms of LiFe 5 O 8 -have been isolated.…”

Section: Introductionmentioning

confidence: 99%

Cation Distribution in Lithium Ferrite (LiFe5O8) Prepared via Aerosol Route

Singhal¹,

Chandra²

2010

JEMAA

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“…They find an ever increasing application in microwave devices, memory core of computers, radars, solar energy devices, ferrofluids, ferroseals, audio-video and digital recording etc. Owing to their high Curie temperature, high saturation magnetization and hysteresis loop properties these materials offer performance advantage over other spinel structures [2][3][4][5][6].…”

Section: Relative Transmissionmentioning

confidence: 99%

Mössbauer effect studies on mixed lithium–zinc ferrites prepared by solution combustion method

2008

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Mössbauer effect studies have been made on lithium ferrites of varying compositions i.e. Li 0.5−x/2 Zn x Mn 0.05 Fe 2.45−x/2 O 4 prepared by combustion method from stoichiometric aqueous solutions of metal nitrates and oxalyl dihydrazide. In these compositions x varies from 0→0.5 in steps of 0.1. The Mössbauer spectral studies reveal that substitution of nonmagnetic Zn 2+ is responsible for successive increase in line-width and change in hyperfine fields at A and B sites. The combustion method is rapid and may approach direct conversion from the molecular mixture of precursor solution to the fine particles of oxide product. The process involves highly exothermic redox reaction between metal nitrates and oxalyl dihydrazide solutions.

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Synthesis, structural, and magnetic characterisation of magnesium-doped lithium ferrite of composition Li0.5Fe2.5O4

Cited by 63 publications

References 8 publications

The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4

The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4

Cation Distribution in Lithium Ferrite (LiFe5O8) Prepared via Aerosol Route

Mössbauer effect studies on mixed lithium–zinc ferrites prepared by solution combustion method

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