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

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

Preparation of KNbO3 Powder by Modified Pechini Method from Layered Perovskite Aqueous Solution

2008 ◽  
Vol 368-372 ◽  
pp. 1883-1885 ◽  
Author(s):  
Takafumi Kokubo ◽  
Kenichi Kakimoto ◽  
Hitoshi Ohsato
Keyword(s):  
Crystal Structure ◽  
Pechini Method ◽  
Layered Perovskite ◽  
Polymeric Precursor Method ◽  
Polymeric Precursor ◽  
Precursor Method ◽  
Thermal Decomposition Behavior ◽  
Modified Pechini Method ◽  
Ft Ir ◽  
Decomposition Behavior

KNbO3 (KN) powder was synthesized by modified Pechini method (polymeric precursor method). KN powder with different crystal structure and grain size distribution was synthesized by different drying temperature. In this paper, the mechanism of preparation of KN powder was discussed in thermal decomposition behavior. The obtained powder was characterized by XRD, TEM, FT-IR and TG-DTA.

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.

Crystal structure and microwave dielectric characteristics of Co-substituted Zn1−xCoxZrNb2O8 (0 ≤ x ≤ 0.1) ceramics

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 86889-86903 ◽  
Author(s):  
H. L. Pan ◽  
Q. Q. Liu ◽  
Y. H. Zhang ◽  
H. T. Wu
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Method ◽  
Dielectric Characteristics ◽  
Microwave Dielectric ◽  
Conventional Solid State Method ◽  
State Method

Wolframite structure Zn1−xCoxZrNb2O8 (x = 0, 0.02, 0.04, 0.06, 0.08, 0.10) ceramics were prepared by the conventional solid state method.

Crystal structure, spectra analysis and dielectric characteristics of Ba4M28/3Ti18O54 (M= La, Pr, Nd, and Sm) microwave ceramics

2021 ◽  
Vol 47 (2) ◽  
pp. 1750-1757
Author(s):  
Geng Wang ◽  
Qiuyun Fu ◽  
Pengju Guo ◽  
Ming Hu ◽  
Huanhuan Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Microwave Ceramics ◽  
Spectra Analysis ◽  
Dielectric Characteristics
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