Dielectric materials and electrostatics [[electronic resource] /] / Olivier Gallot-Lavallée

• Record Nr.: UNINA9910141832703321
• Autore: Gallot-Lavallée Olivier
• Pubbl/distr/stampa: London, : ISTE; Hoboken, N.J., : Wiley, c2013
• ISBN: 1-118-75341-0; 1-118-75349-6; 1-118-75372-0
• Descrizione fisica: 1 online resource (219 p.)
• Collana: Electrical engineering series
• Disciplina: 537.24
• Soggetti: Dielectrics; Electrostatics
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Cover; Title Page; Contents; Foreword; Chapter 1. Mathematical Examination of Dielectrics; 1.1. Introduction to dielectrics; 1.1.1. Polarization; 1.1.2. Ionization; 1.1.3. Polarized dielectrics; 1.1.4. Electrical induction; 1.1.5. Move from one dielectric to another; 1.1.6. Move from a dielectric to a conductor; 1.1.7. Energy contained in a dielectric; 1.2. Perfect dielectrics; 1.2.1. Refraction of force- and induction-lines; 1.2.2. Field in the vicinity of a charged conductor; 1.2.3. Electrostatic pressure; 1.2.4. Corresponding elements; 1.2.5. Equilibrium in a system of conductors; 1.2.6. Capacities and influence coefficients 1.2.7. Calculation of the interstitial field; 1.2.8. Depolarizing field; 1.3. Forces exerted on polarized dielectrics; 1.3.1. Forces exerted on a rigidly-polarized solid dielectric; 1.3.2. Forces exerted on a solid perfect dielectric; 1.3.3. Forces exerted on a liquid dielectric; 1.3.4. Electrostriction; 1.4. Dielectric losses; 1.5. Residual charges; 1.6. Electrets; 1.7. Characteristics of an insulator; 1.8. Pyro and piezo-electricity; 1.8.1. Pyroelectricity; 1.8.2. Piezoelectricity; 1.9. Currents in extended conductors; 1.9.1. Current density; 1.9.2. Expression of Ohm's law in an extended conductor 1.9.3. ; Conservation of current density; 1.9.4. Distribution of current in an extended medium; 1.9.5. Power dissipated by the Joule effect; 1.9.6. Resistance of the conductive medium; 1.9.7. Deviation of the electrical current when crossing the surface separating two conductors; Chapter 2. Physical Examination of Dielectrics; 2.1. Gaseous dielectrics; 2.1.1. Reminder of the properties of gases; 2.1.2. Ionization; 2.1.3. Examination of the conditions of initiation of self-sustaining discharge; 2.1.4. Corona discharge effect; 2.1.5. Use of gases as insulators 2.2. Liquid and solid dielectrics; 2.2.1. Conductivity; 2.2.2. Physics of polarization; 2.2.3. Dielectric losses; 2.2.4. Breakdown of solid dielectrics; Bibliography; Appendix 1. List of Figures; Appendix 2. List of Symbols; Appendix 3. List of Useful Values; Appendix 4. Reminder about Dielectric Spectroscopy; Appendix 5. Reminder about Transitory Currents; The Authors; Index
• Sommario/riassunto: An introduction to the physics of electrical insulation, this book presents the physical foundations of this discipline and the resulting applications. It is structured in two parts. The first part presents a mathematical and intuitive approach to dielectrics; various concepts, including polarization, induction, forces and losses are discussed. The second part provides readers with the keys to understanding the physics of solid, liquid and gas insulation. It comprises a phenomenological description of discharges in gas and its resulting applications. Finally, the main electrical properties