Synthesis and characterization of NiCoMnCuFe1.96O4 for circulator application

Ramesh, T.; Shinde, R.S.; Murthy, S. R.

doi:10.1016/j.jmmm.2010.12.010

Cited by 12 publications

(6 citation statements)

References 23 publications

(22 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the present investigation, the MS3 sample shows higher linewidth compared to MS2 at a particular frequency and it may be due to high porosity and the nonmagnetic inclusion of MS3 compared to MS2. However, these results represent the lowest linewidth observed in the present investigated samples compared to our previously studied Ni-based ferrites [25]. This represents around 50% improvement of this critical parameter.…”

Section: Resultscontrasting

confidence: 68%

Electromagnetic properties of nanocrystalline Al3+ substituted MgCuMn ferrites synthesized by microwave hydrothermal method

Ramesh¹,

Murthy

2016

Bull Mater Sci

View full text Add to dashboard Cite

The effect of Al 3+ substitution on electromagnetic properties has been studied for nanocrystalline Mg 0.8 Cu 0.2 Mn 0.05 Al x Fe 1.95−x O 4 ferrites, wherein x varies from 0 to 0.4 in steps of 0.1. These ferrites were synthesized by using microwave hydrothermal method and then characterized using X-ray diffractometer (XRD), Fourier transform infrared and transmission electron microscopy. The synthesized powders were densified using microwave sintering method at 950 • C/50 min. Structural and surface morphology of sintered samples were characterized using XRD and atomic force microscopy, respectively. The complex permittivity and permeability properties were measured over a frequency range 100 Hz-1.8 GHz. The temperature variation of magnetic properties were measured in the temperature range of 300-650 K. The electrical and magnetization studies inferred that the values of d.c. resistivity increases by 27%, whereas saturation magnetization decreases linearly from 38.6 to 23.0 emu g −1 and Curie temperature was found to be decreased from 628 to 513 K with an increase of Al 3+ ions. The low dielectric, magnetic losses, moderate saturation magnetization and high-temperature stability properties exhibited by Al 3+ substituted MgCuMn ferrites make them find applications in microwave devices, such as circulators and isolators etc. The applicability of present samples for microwave devices has been tested by the measurement of ferromagnetic resonance linewidth at K a band.

show abstract

Section: Resultscontrasting

confidence: 68%

Electromagnetic properties of nanocrystalline Al3+ substituted MgCuMn ferrites synthesized by microwave hydrothermal method

Ramesh¹,

Murthy

2016

Bull Mater Sci

View full text Add to dashboard Cite

show abstract

“…The microwave sintered sample's sharp resonance might be due to the sample's high density. Several researchers [ 24–26 ] observed similar kind of dielectric resonance in various ferrite systems. The investigated samples dielectric loss tangent (tanδ) is around 0.06, and its behavior is similar to the dielectric constant variation with frequency.…”

Section: Resultsmentioning

confidence: 82%

Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Ramesh¹,

Sravanthi

Ashok³

et al. 2023

Macromolecular Symposia

View full text Add to dashboard Cite

Ni 0.53 Cu 0.12 Zn 0.35 Fe 2 O 4 ferrite powder is synthesized using the microwave-assisted hydrothermal (M-H) technique. The synthesized powder is characterized using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The morphology of the powder particles is examined using field effective scanning electron microscopy (FESEM). The powder is then sintered using microwave and conventional methods at 910°C/1.5 h and 910°C/4 h, respectively. The grain size, bulk density, d.c. resistivity, and saturation magnetization of both the sintered samples are measured and compared. The dielectric properties of both the sintered samples are measured at frequencies ranging from 1 MHz to 1.8 GHz. The research indicates that the sintering process has an impact on the magnetodielectric performance of ferrites. The change in properties resulting by the sintering method is briefly reviewed.

show abstract

“…12, to deduce the peak-to-peak line width (DH) and resonant magnetic field (H r ) for the samples [34e37]. H r is determined at dP/dH ¼ 0 and given by the relation [36];…”

Section: Ferromagnetic Resonance (Fmr) Spectramentioning

confidence: 99%

Structural properties and magnetic interactions in Sr-doped Mg–Mn nanoparticle ferrites

Amer

Meaz

Hashhash³

et al. 2015

Materials Chemistry and Physics

View full text Add to dashboard Cite

Synthesis and characterization of NiCoMnCuFe1.96O4 for circulator application

Cited by 12 publications

References 23 publications

Electromagnetic properties of nanocrystalline Al3+ substituted MgCuMn ferrites synthesized by microwave hydrothermal method

Electromagnetic properties of nanocrystalline Al3+ substituted MgCuMn ferrites synthesized by microwave hydrothermal method

Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Structural properties and magnetic interactions in Sr-doped Mg–Mn nanoparticle ferrites

Contact Info

Product

Resources

About