Charging and discharging phenomena in oxides, electrical and mechanical applications

Author

Gressus, C. Le ; Blaise, G.

Author_Institution

CEA-DSM-CENS, Gif sur Yvette, France

fYear

1991

fDate

8-12 Jul 1991

Firstpage

812

Abstract

Research was conducted to investigate (1) the origin of the correlation which exists between the charging of insulators and their properties (breakdown, fracture toughness, wear, etc.); (2) the origin of the analogy which exists between electric properties and mechanical properties of insulators; and (3) the origin of electron and photoemissions which occur prior to or at the instant of the catastrophe (breakdown, fracture). A theoretical approach to charging and discharging phenomena has made it possible to develop an experimental method giving characteristic dielectric parameters: permittivity, distribution of defects, and energy which can be dissipated inside the insulator without initiating a catastrophe. This method was used to correlate these parameters with the breakdown voltage of oxides and of polymers, and with mechanical properties of ceramics. New high performance materials were prepared

Keywords

electric breakdown of solids; electron field emission; fracture toughness; permittivity; photoemission; wear; breakdown; breakdown voltage; charging; dielectric parameters; discharging phenomena; electron emissions; fracture toughness; insulators; mechanical applications; oxides; photoemissions; polymers; wear; Dielectric materials; Dielectrics and electrical insulation; Electric breakdown; Electron traps; Mechanical factors; Permittivity; Piezoelectric polarization; Potential well; Space charge; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on

Conference_Location

Tokyo

Print_ISBN

0-87942-568-7

Type

conf

DOI

10.1109/ICPADM.1991.172191

Filename

172191