Study of the sintering temperature and the sintering time period effects on the structural and magnetic properties of M-type hexaferrite BaFe12O19

El-Shater, R.; El-Ghazzawy, E.H.; El-Nimr, M. K.

doi:10.1016/j.jallcom.2017.12.228

Cited by 66 publications

(28 citation statements)

References 36 publications

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“…XRD pattern of the M-type BaFe 12 O 19 hexa-ferrite has a single phase of pure M-type hexa-nanoferritesas compared with JCPDS data (Card nos. 00-027-1029, 00-007-0276 and 01-079-1411).The X-ray diffraction pattern of the mixed ferrites shows the peaks of two phases of the cubic spinel and Mtype hexaferrite [small intensities of the plans (114), (107), (116) and (205)] [17]. It is shown that the peaks of M-type hexaferrite have a relative low intensity due to its low ratio.…”

Section: Resultsmentioning

confidence: 96%

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

Shater¹

2020

Arab Journal of Nuclear Sciences and Applications

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This investigation presents a design of 20% M-type BaFe12O19 hexaferrite as a core coated by 80% MgFe2O4 spinel ferrite as a shell (〖Mg〗_80-H_20) in addition to, a mixture of 80% MgFe2O4 spinel ferrite and 20% M-type BaFe12O19 hexa-ferrite powders. The spinel and nanocompsite ferrite materials were synthesized by uingthe wet mechano-chemical co-precipitation route. All prepared samples; spinel, nanocomposite and mixture are annealed at 1200 oC for 6 hours. The results of X-ray diffraction patterns, TEM images and the transmitted IR spectra revealed the formation of two different composite materials. The results of ferromagnetic resonance FMR spectra and magnetic hysteresis loops represents contrast between the nanocomposite structure and the mixed material of the same constitutes with the same ratio

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Section: Resultsmentioning

confidence: 96%

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

Shater¹

2020

Arab Journal of Nuclear Sciences and Applications

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“…Barium hexaferrite (BaFe 12 O 19 ) has been one of the most widely used magnetic materials, accounting for nearly 90% of the $4 billion global market due to its superior properties such as low manufacturing costs, high Curie temperature, high coercivity, chemical stability, and corrosion resistance [ 1 , 2 , 3 , 4 , 5 ]. The production of hexagonal BaFe 12 O 19 has reached 300,000 tons annually, equivalent to 50 g per person [ 2 , 6 , 7 , 8 , 9 ]. Due to its hexagonal structure, the material was called barium hexaferrite.…”

Section: Introductionmentioning

confidence: 99%

Process Optimization of In Situ Magnetic-Anisotropy Spark Plasma Sintering of M-Type-Based Barium Hexaferrite BaFe12O19

et al. 2021

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This paper introduces a new spark plasma sintering technique that is able to order crystalline anisotropy by in-series/in situ DC electric coupled magnetic field. The process control parameters have been investigated on the production of anisotropic BaFe12O19 magnets based on resulted remanence (Mr). Sintering holding time (H.T.), cooling rate (C.R.), pressure (P), and sintering temperature (S.T.) are optimized by Taguchi with L9 orthogonal array (OA). The remanent magnetization of nanocrystalline BaFe12O19 in parallel (Mrǁ) and perpendicular (MrꞱ) to the applied magnetic field was regarded as a measure of performance. The Taguchi study calculated optimum process parameters, which significantly improved the sintering process based on the confirmation tests of BaFe12O19 anisotropy. The magnetic properties in terms of Mrǁ and MrꞱ were greatly affected by sintering temperature and pressure according to ANOVA results. In addition, regression models were developed for predicting the Mrǁ as well as MrꞱ respectively.

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“…Недавние исследования показали, что технологии обработки существенно влияют на физические свойства наночастиц [3]. Поскольку размер кристаллитов, размер частиц и межчастичное расстояние оказывают наибольшее влияние на магнитные свойства, идеальный метод синтеза должен обеспечивать контролируемость этих параметров [4][5][6][7]. Известно множество способов получения как порошков гексаферритов, так и готовых изделий в виде брикетов различных форм.…”

Section: Introductionunclassified

Магнитные Свойства Прессованных Нанопорошков Гексаферрита Бария

Тимофеев¹,

Костишин²,

Макеев³

et al. 2019

Журнал Технической Физики

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Study of the sintering temperature and the sintering time period effects on the structural and magnetic properties of M-type hexaferrite BaFe12O19

Cited by 66 publications

References 36 publications

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

Comparative Study of Structure, FMR and Magnetic Properties of Nanocomposite and Mixture Ferrite.

Process Optimization of In Situ Magnetic-Anisotropy Spark Plasma Sintering of M-Type-Based Barium Hexaferrite BaFe12O19

Магнитные Свойства Прессованных Нанопорошков Гексаферрита Бария

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