Synthesis, crystal structure, spectral, dielectric characteristics and conduction mechanism of two novel carboxylates of 1-benzhydrylpiperazine

2015 ◽  
Vol 146 (12) ◽  
pp. 2007-2020 ◽  
Author(s):  
Intissar Wacharine ◽  
Arto Valkonen ◽  
Mohamed Rzaigui ◽  
Wajda Smirani
Keyword(s):  
Crystal Structure ◽  
Conduction Mechanism ◽  
Dielectric Characteristics

Crystal Structure, Dielectric Characteristics and Conduction Mechanism of a New Hybrid Material, Tetra(Phenylpiperazinium) Decachlorotriplumbate(II)

2017 ◽  
Vol 28 (6) ◽  
pp. 3159-3174 ◽  
Author(s):  
Maha Mathlouthi ◽  
Abdelhamid Chiheb Dhieb ◽  
Arto Valkonen ◽  
Mohamed Rzaigui ◽  
Wajda Smirani
Keyword(s):  
Crystal Structure ◽  
Hybrid Material ◽  
Conduction Mechanism ◽  
Dielectric Characteristics

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.

Crystal structure, leakage conduction mechanism evolution and enhanced multiferroic properties in Y-doped BiFeO3 ceramics

2016 ◽  
Vol 42 (12) ◽  
pp. 13395-13403 ◽  
Author(s):  
Jie Wei ◽  
Yang Liu ◽  
Xiaofei Bai ◽  
Chen Li ◽  
Yalong Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Conduction Mechanism ◽  
Multiferroic Properties

Correlation between crystal structure and modified microwave dielectric characteristics of Cu2+ substituted Li3Mg2NbO6 ceramics

2019 ◽  
Vol 45 (8) ◽  
pp. 10170-10175 ◽  
Author(s):  
Gang Wang ◽  
Dainan Zhang ◽  
Fang Xu ◽  
Xin Huang ◽  
Yan Yang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dielectric Characteristics ◽  
Microwave Dielectric

Crystal structure and microwave dielectric properties of M(NbxTa1−x)2O6 solid solution (M = Mg or Zn)

1997 ◽  
Vol 12 (6) ◽  
pp. 1437-1440 ◽  
Author(s):  
Hyo-Jong Lee ◽  
Kug-Sun Hong ◽  
In-Tae Kim
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Microwave Dielectric Properties ◽  
Temperature Stability ◽  
Two Phase ◽  
Dielectric Characteristics ◽  
Microwave Dielectric ◽  
Morphotropic Phase Transition ◽  
Phase Mixture ◽  
Better Than

The microwave dielectric characteristics and crystal structure of the Zn(NbxTa1−x)2O6 and Mg(NbxTa1−x)2O6 systems have been investigated. It was found that both systems exhibited a morphotropic phase transition. Based on the results it was suggested that permittivity and temperature coefficient of resonant frequency depend more on crystal structure rather than on chemical composition. It was also suggested that a two-phase mixture is better than a solid solution for achieving both high quality factor and good temperature stability.

Processing and Characterization of (1-x)(Na1/2Bi1/2)TiO3 - xLa(Mg1/2Ti1/2)O3 Ceramics

2006 ◽  
Vol 514-516 ◽  
pp. 250-254 ◽  
Author(s):  
Andrei N. Salak ◽  
Nikolai P. Vyshatko ◽  
Andréi L. Kholkin ◽  
Victor M. Ferreira ◽  
Nikolay M. Olekhnovich ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Room Temperature ◽  
Bismuth Titanate ◽  
Lead Free ◽  
Dielectric Characteristics ◽  
Compositional Evolution ◽  
Evolution Of Structure ◽  
Permittivity Maximum

Lead-free relaxor ceramics based on sodium-bismuth titanate, (1-x)(Na1/2Bi1/2)TiO3 - xLa(Mg1/2Ti1/2)O3 [(1-x)NBT-xLMT] (0≤x≤0.25), were prepared by both the conventional mixed oxide method and by the Pechini route, and their crystal structure and dielectric properties were investigated. All the compositions studied were found to possess a rhombohedrally distorted crystal lattice at room temperature. A distortion degree of the unit cell decreases and its volume increases with LMT content. The temperature of the dielectric permittivity maximum does not change with increasing substitution rate. As x is increased, the frequency-dependent dielectric peaks are flattened. The compositional evolution of structure and dielectric characteristics of the ceramics obtained are analysed and discussed in respect to size, charge and polarizability of the cations involved.

Effect of niobia on the crystal structure and dielectric characteristics of Pb(Zr0.45Ti0.55)O3 prepared from polymeric precursor

2000 ◽  
Vol 35 (1) ◽  
pp. 15-24 ◽  
Author(s):  
C.O Paiva-Santos ◽  
C.F Oliveira ◽  
W.C Las ◽  
M.A Zaghete ◽  
J.A Varela ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Polymeric Precursor ◽  
Dielectric Characteristics
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