Dielectric Relaxation Properties in Colossal Dielectric Constant Material Sr0.9Ba0.1Ti0.9Ru0.1O3

2011 ◽  
Vol 298 ◽  
pp. 23-28 ◽  
Author(s):  
Tong Wei ◽  
Qing Jun Zhou ◽  
Qing Gong Song ◽  
Chuan Zhen Zhao ◽  
Jun Ming Liu
Keyword(s):  
Dielectric Constant ◽  
Dielectric Relaxation ◽  
Relaxation Behavior ◽  
Color Centers ◽  
Complex Perovskite ◽  
Impedance Analyzer ◽  
Clear Link ◽  
Dielectric Relaxation Behavior ◽  
Colossal Dielectric Constant ◽  
Dielectric Relaxation Properties

We investigated the colossal dielectric constant behavior and interesting dielectric relaxation over broad temperature and frequency ranges in complex perovskite Sr0.9Ba0.1Ti0.9Ru0.1O3 ceramics by using HP4294 impedance analyzer. Through the discussion, there exists a clear link between the dielectric relaxation and the sample conductivity. It’s believed that hopping of electrons between color centers not only produce conductivity but also give rise to dielectric relaxation behavior.

High dielectric constants in BaTiO3 doped 90V2O5−10Bi2O3 oxide glasses obeying Debye-type dielectric relaxation behavior

1994 ◽  
Vol 9 (8) ◽  
pp. 1932-1935 ◽  
Author(s):  
Sahana Chakraborty ◽  
A.K. Bera ◽  
S. Mollah ◽  
B.K. Chaudhuri
Keyword(s):  
Dielectric Constant ◽  
Dielectric Relaxation ◽  
Dilution Effect ◽  
Dielectric Behavior ◽  
Dielectric Constants ◽  
Relaxation Behavior ◽  
Oxide Glasses ◽  
Base Glass ◽  
Dielectric Relaxation Behavior ◽  
High Dielectric

BaTiO3 doped 90V2O5−10Bi2O3 (VB) oxide glasses show a larger dielectric constant (102-104) compared to that of the base glass VB (∼102). The VB glass with 15 wt.% BaTiO3 shows the largest dielectric constant, and all the glasses show a Debye-type dielectric relaxation behavior. The increase in dielectric constant appears to be mainly due to the formation of microcrystalline clusters of BaTiO3 (1.8–8 μm, depending on the BaTiO3 concentration present in the base glass). Other than the dilution effect with BaTiO3, the glass-former oxide Bi2O3 also influences the dielectric behavior of BaTiO3 doped VB glasses.

Nonmonotonic dielectric relaxation behavior of thermochromic epoxy composite

2022 ◽  
pp. 131678
Author(s):  
Jian Gao ◽  
Yiwei Long ◽  
Kangning Wu ◽  
Jianying Li ◽  
Guilai Yin
Keyword(s):  
Dielectric Relaxation ◽  
Epoxy Composite ◽  
Relaxation Behavior ◽  
Dielectric Relaxation Behavior

Oxygen defect related high temperature dielectric relaxation behavior in (Ba,La)(Zr,Sn,Ti)O3 ceramics

2021 ◽  
Vol 127 (10) ◽  
Author(s):  
Ke Meng ◽  
Wenhua Li ◽  
Xingui Tang ◽  
Xiaobin Guo ◽  
Qiuxiang Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Dielectric Relaxation ◽  
Relaxation Behavior ◽  
Oxygen Defect ◽  
Dielectric Relaxation Behavior
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