Yüklüyor…
Dielectric materials for electrical engineering /
Part 1 is particularly concerned with physical properties, electrical ageing and modeling with topics such as the physics of charged dielectric materials, conduction mechanisms, dielectric relaxation, space charge, electric ageing and life end models and dielectric experimental characterization. Par...
| Diğer Yazarlar: | |
|---|---|
| Materyal Türü: | e-Kitap |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
London :
Wiley,
2013.
|
| Seri Bilgileri: | ISTE.
|
| Konular: | |
| Online Erişim: | Full-text access |
İçindekiler:
- Cover; Title Page; Copyright Page; Table of Contents; PART 1. GENERAL PHYSICS PHENOMENA; Chapter 1. Physics of Dielectrics; 1.1. Definitions; 1.2. Different types of polarization; 1.2.1. Non-polar solids; 1.2.2. Polar solids; 1.2.3. Electronic polarization; 1.2.4. Ionic polarization; 1.2.5. Orientation polarization; 1.2.6. Interfacial or space-charge polarization; 1.2.7. Comments; 1.3. Macroscopic aspects of the polarization; 1.3.1. Polarization of solids with metallic bonding; 1.3.2. Polarization of iono-covalent solids; 1.3.3. Notion of polarization charges.
- 1.3.4. Average field in a neutral medium1.3.5. Medium containing excess charges; 1.3.6. Local field; 1.3.7. Frequency response of a dielectric; 1.4. Bibliography; Chapter 2. Physics of Charged Dielectrics: Mobility and Charge Trapping; 2.1. Introduction; 2.2. Localization of a charge in an "ideally perfect" and pure polarizable medium; 2.2.1. Consideration of the polarization; 2.2.2. Coupling of a charge with a polarizable medium: electrostatic approach; 2.2.3. Coupling of a charge with a polarizable medium: quantum approach; 2.2.4. Conduction mechanisms.
- 2.3. Localization and trapping of carriers in a real material2.3.1. Localization and trapping of the small polaron; 2.3.2. Localization and intrinsic trapping of the carriers; 2.3.3. Trapping on structure defects and impurities; 2.3.4. Localization related to disorder; 2.3.5. Mechanical energy related to the trapping of one charge; 2.4. Detrapping; 2.4.1. Thermal detrapping; 2.4.2. Detrapping under an electric field by the Poole-Frankel effect; 2.5. Bibliography; Chapter 3. Conduction Mechanisms and Numerical Modeling of Transport in Organic Insulators: Trends and Perspectives.
- 3.1. Introduction3.2. Molecular modeling applied to polymers; 3.2.1. Energy diagram: from the n-alkanes to polyethylene; 3.2.2. Results of modeling; 3.3. Macroscopic models; 3.3.1. Elementary processes; 3.3.2. Some models characterizing the experimental behavior; 3.4. Trends and perspectives; 3.4.1. Unification of atomistic and macroscopic approaches; 3.4.2. Interface behavior; 3.4.3. Physical models for transport in volume; 3.4.4. Degradation induced by a charge and/or a field; 3.4.5. Contribution of the physics of non-insulating organic materials; 3.5. Conclusions; 3.6. Bibliography.
- Chapter 4. Dielectric Relaxation in Polymeric Materials4.1. Introduction; 4.2. Dynamics of polarization mechanisms; 4.2.1. Electronic and ionic polarization; 4.2.2. Dipolar polarization; 4.2.3. Maxwell-Wagner-Sillars polarization; 4.2.4. Interfacial polarization; 4.3. Orientation polarization in the time domain; 4.3.1. Single relaxation time model; 4.3.2. Discrete distribution of relaxation times; 4.3.3. Continuous distribution of relaxation times; 4.3.4. Stretched exponential: Kohlrausch-Williams-Watts equation; 4.4. Orientation polarization in the frequency domain.