DIELECTRIC RELAXATION EFFECTS IN A METAL‐OXIDE‐PLASMA CAPACITOR

1967 ◽  
Vol 10 (1) ◽  
pp. 27-29 ◽  
Author(s):  
Robert A. Olson ◽  
G. Medicus
Keyword(s):  
Metal Oxide ◽  
Dielectric Relaxation ◽  
Relaxation Effects ◽  
Plasma Capacitor

Dielectric relaxation assessment of a heat treated metal oxide varistor

2003 ◽  
Vol 150 (4) ◽  
pp. 141-147 ◽  
Author(s):  
H.S.B. Elayyan ◽  
S.N. Al-Refaie
Keyword(s):  
Metal Oxide ◽  
Dielectric Relaxation ◽  
Heat Treated ◽  
Metal Oxide Varistor

On the relationship between matric potential and dielectric properties of organic free soils: a sensitivity study

2009 ◽  
Vol 46 (10) ◽  
pp. 1202-1215 ◽  
Author(s):  
Norman Wagner ◽  
Alexander Scheuermann
Keyword(s):  
Dielectric Relaxation ◽  
Low Frequency ◽  
Bound Water ◽  
Frequency Dispersion ◽  
Strong Relationship ◽  
Sensitivity Study ◽  
Relative Dielectric Permittivity ◽  
Relaxation Processes ◽  
Matric Potential ◽  
Relaxation Effects

High-frequency electromagnetic determination of moisture in porous media, (e.g., soil) is based on the strong relationship between volumetric water content and relative dielectric permittivity. In particular, in fine-grained soils the movement of water is influenced by different surface-bonding forces due to interface processes. The interface effects lead to a number of dielectric relaxation processes (free- and bound-water phase, Maxwell–Wagner effect, counterion relaxation effects). These relaxation processes are the reason for the strong frequency dependence of the electromagnetic material properties below 1 GHz. The matric potential is a measure of the bonding forces on water in the soil. Based on a thermodynamic relationship between soil matric potential and dielectric relaxation behaviour of water in different binding states, a broadband dielectric relaxation model was developed that considers low-frequency dispersion up to 1 MHz as well as losses due to direct-current conductivity. The sensitivity of the model on soil suction was systematically analyzed based on a pedotransfer function (PTF) for soil textures ranging from pure sand up to pure clay. The results are compared with known empirical and semiempirical calibration functions, as well as theoretical mixing models.

Problems with metal-oxide high-κ dielectrics due to 1/t dielectric relaxation current in amorphous materials

2004 ◽  
Author(s):  
J.R. Jameson ◽  
P.B. Griffin ◽  
A. Agah ◽  
J.D. Plummer ◽  
H.-S. Kim ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Dielectric Relaxation ◽  
Amorphous Materials

Dielectric relaxation effects on permittivity of surface soils

2005 ◽  
Author(s):  
Marcel G. Schaap ◽  
Jan M. H. Hendrickx
Keyword(s):  
Dielectric Relaxation ◽  
Surface Soils ◽  
Relaxation Effects

Intramolecular donor-acceptor systems. 7. Solvent dielectric relaxation effects on the photophysics of 6-(phenylamino)-N,N-dimethyl-2-naphthalenesulfonamides

1983 ◽  
Vol 87 (14) ◽  
pp. 2479-2484 ◽  
Author(s):  
E. M. Kosower ◽  
H. Kanety ◽  
H. Dodiuk ◽  
G. Striker ◽  
T. Jovin ◽  
...  
Keyword(s):  
Dielectric Relaxation ◽  
Relaxation Effects ◽  
Donor Acceptor

Isothermal depolarization current in metal-oxide varistor ceramics under various polarizing fields

2013 ◽  
Vol 03 (02) ◽  
pp. 1350016 ◽  
Author(s):  
Yu. A. Tonkoshkur ◽  
A. Yu. Lyashkov ◽  
A. S. Tonkoshkur
Keyword(s):  
Zinc Oxide ◽  
Electric Field ◽  
Metal Oxide ◽  
Fermi Level ◽  
Dielectric Relaxation ◽  
Localized States ◽  
Oxide Ceramics ◽  
Depolarization Current ◽  
Function Expansion ◽  
Metal Oxide Varistor

A method of analysis of experimental kinetic dependences of isothermal depolarization currents in metal-oxide varistor ceramics composed of ZnO – Bi 2 O 3– CoO – Sb 2 O 3– SnO 2– MnO – B 2 O 3 has been proposed and tested. The method is based on reconstruction of dependences with the use of the Kohlrausch–Williams–Watt function. Expansion of the distribution and reduction of the average time of dielectric relaxation of the depolarization were found as the magnitude of the polarizing electric field increased. These findings have been interpreted in the framework of the notion of participation in the recharge of localized states more distant from the Fermi level in the crystallites of zinc-oxide ceramics under increased polarizing fields.

ChemInform Abstract: INTRAMOLECULAR DONOR-ACCEPTOR SYSTEMS. 7. SOLVENT DIELECTRIC RELAXATION EFFECTS ON THE PHOTOPHYSICS OF 6-(PHENYLAMINO)-N,N-DIMETHYL-2-NAPHTHALENESULFONAMIDES

1983 ◽  
Vol 14 (43) ◽  
Author(s):  
E. M. KOSOWER ◽  
H. KANETY ◽  
H. DODIUK ◽  
G. STRIKER ◽  
T. JOVIN ◽  
...  
Keyword(s):  
Dielectric Relaxation ◽  
Relaxation Effects ◽  
Donor Acceptor
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