“Ferrites”: Synthesis, Structure, Properties and Applications

Mapping Intimacies ◽

10.21741/9781644901595-1 ◽

2021 ◽

pp. 1-61

Author(s):

S. Mullick

Keyword(s):

Low Power ◽

Saturation Magnetization ◽

Synthesis Method ◽

Magnetic Fluids ◽

High Resistivity ◽

Wide Scope ◽

Characterization Techniques ◽

Mobile Charger ◽

Biomedical Field ◽

Biomedical Electronics

Ferrites synthesis method and characterization techniques are attracting huge attentions of researchers because of their wide scope of uses in numerous areas. The ferrites include high resistivity, saturation magnetization, permeability, coercivity and low power losses. The above-mentioned useful ferrites characteristics make them appropriate for use in different applications. These ferrites are used in biomedical field for cancer cure and MRI. Electronic applications are transformers, transducers, and inductors which are also made using ferrites and also used in making magnetic fluids, sensors, and biosensors. Ferrite is a profoundly helpful material for many electrical and electronic applications. It has applications in pretty much every domestic device like LED bulb, mobile charger, TV, microwave, fridge, PC, printer, etc. This review mainly focus on the synthesis method, characterization techniques, and implementation of FNPs. This Chapter presents various methods used for ferrites preparation with distinctive examples, their advantages as well as limitations in detail. Ferrites properties like structural, optical, electrical and magnetic with their characterization techniques and various applications in the areas of biomedical, electronics, and environment are also discussed.

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Preparation of magnetized iron oxide grafted on graphene oxide for hyperthermia application

Reviews in Chemical Engineering ◽

10.1515/revce-2020-0001 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Ahmad Abulfathi Umar ◽

Muhamad Fazly Abdul Patah ◽

Faisal Abnisa ◽

Wan Mohd Ashri Wan Daud

Keyword(s):

Iron Oxide ◽

Iron Oxide Nanoparticles ◽

Near Infrared ◽

Malignant Tumors ◽

Synthesis Method ◽

Therapeutic Modality ◽

Iron Oxide Nanoparticle ◽

Oxide Nanoparticles ◽

Hybrid Nanostructure ◽

Characterization Techniques

AbstractMagnetic hyperthermia therapy (MHT) is a highly promising therapeutic modality for the treatment of different kinds of cancers and malignant tumors. The therapy is based on the concept that; iron oxide nanoparticles deposited at cancer sites can generate heat when exposed to an alternating current magnetic field or near infrared radiation and consequently destroying only the cancer cells by exploiting their vulnerability to heat. The fact that the treatment is at molecular level and that iron oxide nanoparticles provide more guided focus heating justifies its efficacy over treatment such as surgery, radiation therapy and chemotherapy. Nevertheless, the spread of MHT as the next-generation therapeutics has been shadowed by insufficient heating especially at the in vivo stage. This can be averted by modifying the iron oxide nanoparticle structure. To this end, various attempts have been made by developing a magnetic hybrid nanostructure capable of generating efficient heat. However, the synthesis method for each component (of the magnetic hybrid nanostructure) and the grafting process is now an issue. This has a direct effect on the performance of the magnetic hybrid nanostructure in MHT and other applications. The main objective of this review is to detail out the different materials, methods and characterization techniques that have been used so far in developing magnetic hybrid nanostructure. In view of this, we conducted a comprehensive review and present a road map for developing a magnetic hybrid nanostructure that is capable of generating optimum heat during MHT. We further summarize the various characterization techniques and necessary parameters to study in validating the efficiency of the magnetic hybrid nanostructure. Hopefully, this contribution will serve as a guide to researchers that are willing to evaluate the properties of their magnetic hybrid nanostructure.

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Metal-based magnetic fluids with core–shell structure FeB@SiO2 amorphous particles

Soft Matter ◽

10.1039/c7sm01238a ◽

2017 ◽

Vol 13 (37) ◽

pp. 6340-6348 ◽

Cited By ~ 7

Author(s):

Mengchun Yu ◽

Xiufang Bian ◽

Tianqi Wang ◽

Junzhang Wang

Keyword(s):

High Temperature ◽

Saturation Magnetization ◽

Shell Structure ◽

Magnetic Fluids ◽

Core Shell ◽

High Saturation Magnetization ◽

Temperature Performance ◽

High Saturation ◽

Core Shell Structure ◽

Amorphous Particles

Metal-based magnetic fluids with desirable high temperature performance based on core–shell FeB@SiO2 amorphous particles with high saturation magnetization.

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Unravelling the Anisotropic Behavior of Nickel—Wires Prepared through External Magnetic Field Assisted Hydrazine Reduction Method

Applied Sciences ◽

10.3390/app11188627 ◽

2021 ◽

Vol 11 (18) ◽

pp. 8627

Author(s):

Min-Soo Kim ◽

Min-Ji Shin ◽

Akshay Kumar ◽

Kavita Kumari ◽

Seok-Hwan Huh ◽

...

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Magnetic Anisotropy ◽

Saturation Magnetization ◽

Synthesis Method ◽

Ferromagnetic Behavior ◽

Geometrical Shape ◽

Face Centered Cubic ◽

Minimum Diameter ◽

Hydrazine Reduction

Ni wires, prepared through a hydrazine reduction, were exposed to external magnetic fields of different geometrical shape and configuration during the synthesis denoted as Ni-Non-Magnetic, Ni-Double, Ni-Single, Ni-Ring. Their effect on the wire morphology, magnetization and magnetic anisotropy was then investigated via various characterization techniques viz. X-ray diffraction (XRD), high-resolution field emission scanning electron microscopy (HR-FESEM), and vibrating sample magnetometer (VSM). The polycrystalline single phase of the Ni-wires with face centered cubic symmetry was confirmed through the analysis of XRD patterns. Analysis of HR-FESEM images revealed that the Ni-particles were aligned in form of wire-like morphology. The Ni-single sample formed the wires with minimum diameter compared to the parent sample. The magnetization measurements performed at 300 K and 50 K demonstrated the ferromagnetic behavior of all the samples. The room temperature saturation magnetization (MS) and anisotropy constant (K) of the Ni-wires were reduced upon providing the external field during synthesis. However, the low temperature (50 K) magnetization behavior was rather opposing, indicating enhanced values of MS and K. Among all, Ni-ring sample showed maximum anisotropy with a value of 3.84 × 104 erg/cm3 at 50 K. The ambiguous nature of the anisotropic constant and saturation magnetization ascribed partly to the variation in diameters of Ni-wires and to the intermittent spin-spin exchange interactions of unaligned/partially aligned particles during the synthesis. Briefly, in the present study, it was established that the morphology and magnetic anisotropy of the Ni-wires could be tailored through the external magnetic field assisted synthesis method.

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Development and synthesis method for pass-transistor logic family for high-speed and low power CMOS

38th Midwest Symposium on Circuits and Systems. Proceedings ◽

10.1109/mwscas.1995.504436 ◽

2002 ◽

Cited By ~ 7

Author(s):

V.G. Oklobdzija ◽

M. Soderstrand ◽

B. Duchene

Keyword(s):

Low Power ◽

High Speed ◽

Synthesis Method ◽

Low Power Cmos ◽

Pass Transistor ◽

Pass Transistor Logic

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An improved pass transistor synthesis method for low power, high speed CMOS circuits

ISLPED'00: Proceedings of the 2000 International Symposium on Low Power Electronics and Design (Cat. No.00TH8514) ◽

10.1145/344166.344541 ◽

2000 ◽

Author(s):

Tudor Vinereanu ◽

Sverre Lidholm

Keyword(s):

Low Power ◽

High Speed ◽

Synthesis Method ◽

Cmos Circuits ◽

Pass Transistor

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Damping effects of magnetic fluids of various saturation magnetization (abstract)

Journal of Applied Physics ◽

10.1063/1.345854 ◽

1990 ◽

Vol 67 (9) ◽

pp. 5477-5477

Author(s):

Mark Chagnon

Keyword(s):

Saturation Magnetization ◽

Magnetic Fluids ◽

Damping Effects

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Ultra low power cytomimetic VLSI circuits: Synthesis method & proof-of-concept results

Biological Systems Open Access ◽

10.4172/2329-6577.s1.001 ◽

2015 ◽

Vol 04 (02) ◽

Author(s):

Emmanuel Mic. Drakakis

Keyword(s):

Low Power ◽

Synthesis Method ◽

Vlsi Circuits ◽

Proof Of Concept ◽

Ultra Low Power

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Magnetic Properties of Barium Ferrite Prepared by Hydrothermal Synthesis

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.655.178 ◽

2015 ◽

Vol 655 ◽

pp. 178-181

Author(s):

Min Chen ◽

R.H. Fan ◽

Gui Fang Liu ◽

Xu Ai Wang ◽

Kai Sun

Keyword(s):

Hydrothermal Synthesis ◽

Saturation Magnetization ◽

Barium Ferrite ◽

Phenolic Resin ◽

Resin Composite ◽

Synthesis Method ◽

Barium Nitrate ◽

Iron Nitrate ◽

Bulk Materials ◽

Excellent Chemical

M-type barium ferrite (BaFel2O19) receives much attention due to the remarkable properties of the bulk materials: large magnetic anisotropy, sufficient saturation magnetization, non-toxic, excellent chemical stability and good corrosion resistivity. Using stoichiometric amounts of iron nitrate, barium nitrate and sodium hydroxide as the starting materials, we have prepared BaFel2O19 by hydrothermal synthesis method. The results show that when the n (Fe3+)/n (Ba2+) ratio of 6 and n (OH−)/n (NO3−) ratio of 2, the morphology of BaFe12O19 is hexagonal platelets which approximately 800 nm in length and 50 nm in thickness. The coercivity of BaFe12O19 is 1286 Oe and the saturation magnetization is 23.7 emu/g. The BaFe12O19/phenolic resin composite has been prepared and the permeability of the BaFel2O19/phenolic resin composite was measured.

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