where,Qis the magnitude of positive or negative charge andlis the length of dipole or distance between two charges. Every dipole in a dielectric material is like a vector whose direction is along the applied electric field (or from negative to positive charge of a dipole) and dipole density ...
Electric field intensity factors are obtained for conducting paths emanating from a surface electrode in an orthotropic material. The asymptotic problem of a kinked conducting path in dissimilar anisotropic dielectric materials is considered. The electric field intensity factor for the asymptotic problem is...
Dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift thr
Dielectric loss: This is the amount of energy dissipated as heat in a dielectric material when it is subjected to an alternating electric field. It is measured by theloss tangentor dissipation factor, which is the ratio of the resistive current to the capacitive current in the material. The r...
In subject area:Chemistry A dielectric material is an electrically insulating substance that can withstand high electric fields without conducting current, commonly used in capacitors and radio-frequency devices for energy storage. AI generated definition based on:Electrochimica Acta,2011 ...
“Students, engineers, and materials scientists will find this book to be a good comprehensive resource for learning about the fundamental material property characteristics of dielelectric materials.” (IEEE Electrical Insulation Magazine, 1 July 2014)...
介电质(Dielectric material) 先分析一下绝缘体,外部电场会造成绝缘体内部载流子的位移,以产生诱导偶极子。某些绝缘体中存在永久偶极子,他们会在外部电场的作用下对齐,有永久偶极子的材料成为极化材料,反之则为非极化材料。 而在金属中(metal),自由移动的电子立即消除材料中的电场变化(屏蔽固定的正离子),外部电场被表...
direction of the applied electric field. The negative charges are shifted in the direction opposite to the applied electric field. This leads to Dielectric polarization. In dielectric material, electric charges do not flow through the material. Polarization reduces the overall field of the dielectric...
A non-thermal plasma assisted combustion fuel injector that uses an inner and outer electrode to create an electric field from a high voltage power supply. A dielectric material is operatively disposed between the two electrodes to prevent arcing and to promote the formation of a non-thermal ...
material. Table 1 The results of calculations of atomic concentrations on the basis of EDX and XPS spectra in comparison with theoretical values. Full size table In order to determine dielectric properties of (Zn,Mg,Ni,Fe,Cd)Fe2O4high entropy ferrite real and imaginary part of permittivity ...