Effects of composition and sintering temperature on properties of NiZn and NiCuZn ferrites

Su, Hua; Zhang, Huaiwu; Tang, Xiaoli; Jing, Yulan; Liu, Yingli

doi:10.1016/j.jmmm.2006.07.022

Cited by 71 publications

(25 citation statements)

References 8 publications

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“…These soft magnetic materials, crystallizes in the spinel structure of the type (Zn 1-x Fe x ) (Ni x Fe 2-x )O 4 , where the metallic cations Fe 3+ /Zn 2+ occupy the tetrahedral A sites, and the metallic cations Fe 3+ /Ni 2+ occupy the octahedral B sites [5,6]. It is known that magnetic properties of ferrites are sensitive to preparation technique and their microstructures [7]. The electrical and magnetic properties of such ferrites depend strongly on distribution of cations at the tetrahedral (A) and octahedral (B) sites in the lattice [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Krishna¹,

Ravinder²,

Kumar³

et al. 2012

WJCMP

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Ni-Zn ferrite with a nominal composition of Ni 1-X Zn X Fe 2 O 4 (X = 0, 0.2, 0.6, 0.8, 0.9 and 1.0) ferrite powders have been successfully prepared at a very low temperature (180˚C) by a novel auto combustion process using citric acid as a coordinating agent. Phase purity of the solid solutions has been confirmed by X-ray diffraction. Morphological, elemental composition characterizations of the prepared samples were performed by high resolution scanning electron microscopy and energy dispersive spectroscopy (EDS). Magnetic properties of all samples are obtained by using VSM (Vibrating Sample Magnetometer) in the range of 10 K oe. The saturation magnetization values of the samples are carried out from the B-H loop. The effect of composition on saturation magnetization and magnetic moment are studied in this paper. The results showed that Saturation magnetization and magnetic moment values increases gradually as Zn 2+ composition increases, it reaches maximum value 70.28 emu/gm for (X = 0.6) and decreases further with increasing Zn 2+ composition.

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Section: Introductionmentioning

confidence: 99%

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Krishna¹,

Ravinder²,

Kumar³

et al. 2012

WJCMP

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show abstract

“…It has been reported that when the size of particles reduced to small size or in range of nanomaterials, some of their fundamental properties are affected. It is known that magnetic properties of ferrites are sensitive to preparation technique and their microstructures [15]. The electrical and magnetic properties of such ferrites depend strongly on distribution of cations at the tetrahedral (A) and octahedral (B) sites in the lattice [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Hydrothermal Synthesis and Characterisation of Nano Size Ni-Zn Ferrites

J¹

2017

IJRASET

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“…Several methods are conventionally used for the synthesis of these nanosized ferrites such as ceramic [21,22], sol-gel [23,24], coprecipitation [25], hydrothermal method [26,27], citrate precursor method [28,29], and autocombustion method [29,30]. Sonochemical approach is considerably new to synthesize ferrite in which ferrite nanoparticles are prepared by ultrasound irradiation or sonication of the reaction mixture [31].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of Magnetic Photocatalyst of Ni-Zn Ferrite/TiO₂from IC Lead Frame Scraps

Liu

2015

Journal of Nanotechnology

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IC lead frame scraps with about 18.01% tin, 34.33% nickel, and 47.66% iron in composition are industrial wastes of IC lead frame production. The amount of thousand tons of frame scraps in Taiwan each year is treated as scrap irons. Ni-Zn ferrites used in high frequent inductors and filters are produced from Ni-Zn ferrite powders by pressing and sintering. The amount of several ten thousand tons of ferrites of Ni 1− Zn Fe 2 O 4 in compositions is consumed annually in the whole world. Therefore, these IC lead frame scraps will be used in this research as raw materials to fabricate magnetic ferrite powders and combined subsequently with titanium sulfate and urea to produce magnetic photocatalysts by coprecipitation for effective waste utilization. The prepared Ni-Zn ferrite powder and magnetic photocatalyst (Ni-Zn ferrite/TiO 2 ) were characterized by ICP, XRF, XRD, EDX, SEM, SQUID, and BET. The photocatalytic activity of synthesized magnetic photocatalysts was tested by FBL dye wastewater degradation. TOC and ADMI measurement for degradation studies were carried out, respectively. Langmuir-Hinshelwood kinetic model of the prepared magnetic TiO 2 proved available for the treatments. Wastes are transformed to valuable magnetic photocatalysts in this research to solve the separation problem of wastewater and TiO 2 photocatalysts by magnetic field.

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Effects of composition and sintering temperature on properties of NiZn and NiCuZn ferrites

Cited by 71 publications

References 8 publications

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Low Temperature Hydrothermal Synthesis and Characterisation of Nano Size Ni-Zn Ferrites

Synthesis and Application of Magnetic Photocatalyst of Ni-Zn Ferrite/TiO₂from IC Lead Frame Scraps

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Effects of composition and sintering temperature on properties of NiZn and NiCuZn ferrites

Cited by 71 publications

References 8 publications

Synthesis, XRD &amp; SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Synthesis, XRD &amp; SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Low Temperature Hydrothermal Synthesis and Characterisation of Nano Size Ni-Zn Ferrites

Synthesis and Application of Magnetic Photocatalyst of Ni-Zn Ferrite/TiO2from IC Lead Frame Scraps

Contact Info

Product

Resources

About

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

Synthesis and Application of Magnetic Photocatalyst of Ni-Zn Ferrite/TiO₂from IC Lead Frame Scraps