RETRACTED: Magnetic properties of iron-based soft magnetic composites with MgO coating obtained by sol–gel method

Taghvaei, Amir Hossein; Ebrahimi, A.; Ghaffari, Mohammad Ali; Janghorban, K.

doi:10.1016/j.jmmm.2009.11.008

Cited by 43 publications

(11 citation statements)

References 13 publications

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“…These include epoxy, polyamide, silicone resins and polyvinyl alcohol [8][9][10]. The thermal treatment temperature for these materials is limited by the thermal resistance of the organic insulating layer between the magnetic particles; therefore phosphates (zinc/iron/manganese) and oxides (MgO) with high resistance temperatures were selected instead of organic coatings [11,12]. Unfortunately, the above mentioned insulating coatings have a common flaw.…”

Section: Introductionmentioning

confidence: 99%

Iron-based soft magnetic composites with Mn–Zn ferrite nanoparticles coating obtained by sol–gel method

Sun

et al. 2012

Journal of Magnetism and Magnetic Materials

102

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Section: Introductionmentioning

confidence: 99%

Iron-based soft magnetic composites with Mn–Zn ferrite nanoparticles coating obtained by sol–gel method

Sun

et al. 2012

Journal of Magnetism and Magnetic Materials

102

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“…Annealing effects on properties of several kinds of polymers such as silicone, epoxy, and phenolic resin have been systematically investigated. 4–6 The resistance temperature of phenolic or epoxy resin, when used as the insulating layer, is lower than 200 ℃. 5 As the named publications focused on the magnetic properties, there is a lack of information concerning the mechanical properties of SMCs.…”

Section: Introductionmentioning

confidence: 99%

Annealing effects on magnetic properties and strength of organic-silicon epoxy resin-coated soft magnetic composites

Xiao

Sun

Chen

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part C:

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Soft magnetic composites (SMCs) can be described as soft magnetic powders covered by electrically insulating layers. In this work, iron powders with high purity and organic-silicon epoxy resin were chosen for good magnetic properties, thermal stability, and mechanical properties, respectively. The effect of amount of resin, different annealing temperatures on the microstructure, and performance of SMCs was investigated. Results show that organic-silicon epoxy resin has excellent properties as dielectric coating materials for coating iron powders and maximum heat-resistant temperature is about 400 ℃. According to magnetic properties and flexural strength analysis, the optimum annealing temperature of organic-silicon epoxy resin-coated composite is 200 ℃. Furthermore, the finite element analysis indicates that the strength of the whole composites is related to the adhesion of resin and iron and the strength of resin itself.

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“…Among them, Fe/MgO composite particles have drawn increasingi nterest and researchers have attempted various methodst op roduce them due to their novel magnetic and catalytic features. Taghvaei et al [27] reported the analysis of the magneticl osses in ironbased softmagnetic composites with MgO insulation. They obtained composites amples by coating MgO on the commercial iron powdersbymeans of the sol-gel method.Rakmak et al [28] synthesized Fe/MgO nano-crystal catalysts for removal of hydrogen sulfide in ab iogas that showed marked catalytic properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation and magnetic characterization of Fe/metal oxide nanocomposite particles by means of hydrogen reduction assisted ultrasonic spray pyrolysis (USP-HR)

Ebin

Toparlı

Gürmen

2013

International Journal of Materials Research

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Preparationa nd magnetic characterization of Fe/metal oxide nanocompositep articles by means of hydrogenr eduction assisted ultrasonic spray pyrolysis (USP-HR) Fe/metal oxide nanocomposite particles werep roducedb y meansofhydrogen reduction assisted ultrasonic spray pyrolysis.Fe/Fe 0.761 Mg 0.239 Oand Fe/MgO nanocomposite particles wereo btained at 600 and 800 8 C, respectively. The thermodynamics of the formationr eactions werei nvestigated.Increasing the reaction temperatureallowed efficient reduction of the precursor to metallic iron that induces the formationo fp ure MgO phase.T he crystallite sizes of the Fe in the composite structures slightly increased,a nd also the crystallite sizes of the oxides decreased with elevating temperature. The nanocomposite particles exhibited spherical morphology and their particle sizes wereslightlydifferent. All of the samples showed ferromagnetic characteristics and the results indicate that the amount of metal and metaloxide phases most affected the saturation magnetizations of the composite particles which werelower than pure iron.

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RETRACTED: Magnetic properties of iron-based soft magnetic composites with MgO coating obtained by sol–gel method

Cited by 43 publications

References 13 publications

Iron-based soft magnetic composites with Mn–Zn ferrite nanoparticles coating obtained by sol–gel method

Iron-based soft magnetic composites with Mn–Zn ferrite nanoparticles coating obtained by sol–gel method

Annealing effects on magnetic properties and strength of organic-silicon epoxy resin-coated soft magnetic composites

Preparation and magnetic characterization of Fe/metal oxide nanocomposite particles by means of hydrogen reduction assisted ultrasonic spray pyrolysis (USP-HR)

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