Measurement of Electric and Magnetic Properties of ZnO Nanoparticles in the X-Band Using Nicolson–Ross–Weir Analysis

Mabhouti, Kh.; Karamirad, Mohsen; Norouzzadeh, P.; Golzan, Mir Maqsood; Naderali, R.

doi:10.1007/s11664-020-08071-4

Cited by 14 publications

(9 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The complex permittivity is extracted by this technique from the calculatedS 11 reflection coefficient andS 21 transmission coefficient. The Nicholson-Ross and Weir (NRW) method [9] is fast, direct and applicable to waveguides as well as coaxial lines [11]. This method has been used to determine both the permittivity and permeability of the material studied [12], it is wide frequency band and non-iterative.…”

Section: Theory and Methodsmentioning

confidence: 99%

Permittivity of SiC ceramic matrix compositesin Ku band

Ouhassan

Bri

Boubakraoui³

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

The objective of this work is to determine the dielectric permittivity of two SiC ceramic matrix composites. These composites are reinforced with NicalonSiCfibers and SCS6SiC fibers (SiCf / SiC) and have different volume fractions. The results obtained show that the dielectric property depends on the volume fraction and the frequency. Composites with high volume fractions have better dielectric properties than others. The values of the real and imaginary part of the complex permittivity decrease with frequency increase in the Ku-band. Moreover, the imaginary part takes negative values.

show abstract

Section: Theory and Methodsmentioning

confidence: 99%

Permittivity of SiC ceramic matrix compositesin Ku band

Ouhassan

Bri

Boubakraoui³

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

show abstract

“…The Nicholson-Ross-Weir procedure [16,17] was used to extract the complex dielectric permittivity using the measured values of the Sij parameters. It is fast, direct, non-iterative, and applicable to waveguides and coaxial lines [18]. Moreover, it allows a wide frequency band characterization [19].…”

Section: Theory and Methodsmentioning

confidence: 99%

“…In the Nicholson-Ross-Weir (NRW) procedure, the reflection Γ and transmission coefficients T are related to the parameters S11 and S21 as follows [18,20]:…”

Section: Theory and Methodsmentioning

confidence: 99%

Complex permittivity of FeSiAl/Al₂O₃ ceramic composite at X-band frequencies

2021

View full text Add to dashboard Cite

The objective of this paper is to extract and study the complex permittivity of the FeSiAl/Al2O3 ceramic composite at X-band frequencies. We studied by simulation the complex permittivity of four composites with FeSiAl content varying from 0% to 15% by volume in the alumina matrix. The influence of the FeSiAl content on the complex permittivity of the FeSiAl / Al2O3 composite was also studied. The results obtained show on the one hand that the complex permittivity depends on the frequency. Indeed, the values of the real and imaginary parts of the complex permittivity decrease with the increase in frequency over the entire frequency range in the X band. On the other hand, the high FeSiAl content has a significant impact on the values of the real and imaginary parts of complex permittivity. Higher values were obtained for composites with a high inclusion content. In this work, we obtained a good agreement between the simulation results and the published experimental results. These results indicate that the FeSiAl / Al2O3 composite can be used in applications as an electromagnetic wave absorbing material.

show abstract

“…Several synthesis methods have been developed for the fabrication of pure and doped zinc oxide nanoparticles such as chemical co-precipitation [22], combustion synthesis [23], spray pyrolysis [24], hydrothermal [25], thermal plasma [26], sonochemical [27], sol-gel [28], etc. As compared to the other techniques, the sol-gel route produces oxide nanoparticles at a lower cost, shorter time duration, and best control on the shape and size of the particles [29,30].…”

Section: Introductionmentioning

confidence: 99%

X-ray line profile analysis and magnetic and optical properties of FexZn0.95-xCr0.05O nanoparticles fabricated by sol-gel route

Balsure¹,

Gurav

Kadam³

et al. 2022

Cerâmica

View full text Add to dashboard Cite

Fe x Zn 0.95-x Cr 0.05 O nanoparticles have been obtained for the different concentrations of Fe ions by using the sol-gel method. The hexagonal wurtzite structure of all the samples was confirmed by Rietveld refined X-ray diffraction patterns. The addition of Fe ions decreased lattice constants a and c from 3.2487 to 3.2474 Å and 5.2043 to 5.2029 Å, respectively. Uniform deformation, uniform stress deformation, and uniform deformation energy density models were assumed to obtain the crystallite size and strain values from Williamson-Hall analysis. The average crystallite size obtained from all four methods showed increasing variation with the addition of Fe ions in Zn-Cr-O, which was found in good agreement with the Scherrer equation, scanning electron microscopy, and high-resolution transmission electron microscopy results. Energy-dispersive X-ray spectra of typical samples confirmed the stoichiometric proportion of constituent elements. Room temperature ferromagnetism was observed in all the Fe-free and Fe-doped samples. Optical studies were carried out by UV-visible spectrophotometry. The band gap values lay in the range of 3.275 to 3.215 eV.

show abstract

Measurement of Electric and Magnetic Properties of ZnO Nanoparticles in the X-Band Using Nicolson–Ross–Weir Analysis

Cited by 14 publications

References 49 publications

Permittivity of SiC ceramic matrix compositesin Ku band

Permittivity of SiC ceramic matrix compositesin Ku band

Complex permittivity of FeSiAl/Al₂O₃ ceramic composite at X-band frequencies

X-ray line profile analysis and magnetic and optical properties of FexZn0.95-xCr0.05O nanoparticles fabricated by sol-gel route

Contact Info

Product

Resources

About

Measurement of Electric and Magnetic Properties of ZnO Nanoparticles in the X-Band Using Nicolson–Ross–Weir Analysis

Cited by 14 publications

References 49 publications

Permittivity of SiC ceramic matrix compositesin Ku band

Permittivity of SiC ceramic matrix compositesin Ku band

Complex permittivity of FeSiAl/Al2O3 ceramic composite at X-band frequencies

X-ray line profile analysis and magnetic and optical properties of FexZn0.95-xCr0.05O nanoparticles fabricated by sol-gel route

Contact Info

Product

Resources

About

Complex permittivity of FeSiAl/Al₂O₃ ceramic composite at X-band frequencies