Research on dielectric parameters of epoxy resin based nanocomposites using the impedance spectroscopy method

2021 ◽  
Vol 1 (12) ◽  
pp. 236-239
Author(s):  
Anna DĄDA
Keyword(s):  
Impedance Spectroscopy ◽  
Epoxy Resin ◽  
Spectroscopy Method ◽  
Dielectric Parameters

scholarly journals Effect of the Zr-Substitution on the Structural and Electrical Properties of LaFeO3: XRD, Raman Scattering, SEM, and Impedance Spectroscopy Study

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 399
Author(s):  
Djoko Triyono ◽  
Ismi Purnamasari ◽  
Rifqi Almusawi Rafsanjani
Keyword(s):  
Crystal Structure ◽  
Impedance Spectroscopy ◽  
Raman Scattering ◽  
Conduction Mechanism ◽  
Sol Gel ◽  
Dielectric Parameters ◽  
Impedance Spectroscopy Study ◽  
Structural And Electrical Properties ◽  
Characteristics Analysis ◽  
Annealing Method

The LaFe1−xZrxO3 (x = 0.01, 0.05) ceramics were prepared by sol-gel and annealing method and studied by XRD, Raman scattering analysis, SEM, and impedance spectroscopy method. The crystal structure and phonon characteristics analysis revealed that the crystal structure tends to preserve its ideal orthorhombic structure, following the increase in driving force of the Fe/ZrO6 octahedral tilting. The frequency-dependent dielectric parameters at each temperature decreased with increasing Zr content. The temperature dependence dielectric relaxation and dc conduction mechanism satisfied the Arrhenius law and increased with increasing Zr content. The activation energy ranged from 0.30 to 0.50 eV and was similar in the relaxation and conduction mechanisms, indicating that both transport mechanisms were based on a similar mechanism.

Changes of Electrical Parameters of Cement Chipboards Cetris-Basic after Freezing Cycle

2015 ◽  
Vol 1124 ◽  
pp. 197-202
Author(s):  
Ivo Kusák ◽  
Miroslav Lunak
Keyword(s):  
Impedance Spectroscopy ◽  
Impedance Spectrum ◽  
Spectroscopy Method ◽  
Dielectric Losses ◽  
Electrical Parameters ◽  
Stress Cycle ◽  
Freezing Cycle ◽  
Multiple Measurements ◽  
Tan Δ ◽  
Post Stress

NDT impedance spectroscopy method was used to characterize a Cetris wood-cement chipboard. Dry specimen pre-stress and post-stress cycle tan δ (f) spectrum variances were observed. Effects of potential dielectric losses and the predominance of the polarization and conductivity components in various regions of the impedance spectrum of samples after frozen stress cycle are described. The method reproducibility has been verified by multiple measurements.

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