Thermally and electrically induced bubbles in liquid argon and nitrogen

Author

Denat, A. ; Jomni, F. ; Aitken, F. ; Bonifaci, N.

Author_Institution

Lab. d´´Electrostatique et de Materiaux Dielectriques, CNRS, Grenoble, France

Volume

9

Issue

1

fYear

2002

fDate

2/1/2002 12:00:00 AM

Firstpage

17

Lastpage

22

Abstract

An experimental study of high field conduction phenomena in liquid argon and liquid nitrogen in a point-plane electrode geometry is reported. These liquids behave qualitatively like saturated hydrocarbons except when they are studied close to their normal boiling point. The generation and dynamics of microscopic bubbles (thermally and electrically induced) as a function of various parameters (nature of the liquid, injected energy, hydrostatic pressure) are presented and discussed. Possible influences of these phenomena on the electrical insulation at cryogenic temperatures is also discussed

Keywords

argon; bubbles; cryogenics; electrical conductivity; high field effects; nitrogen; thermal insulation; Ar; N₂; cryogenic temperatures; electrical insulation; electrically induced bubbles; high field conduction phenomena; liquid Ar; liquid N₂; microscopic bubbles; point-plane electrode geometry; saturated hydrocarbons; thermally induced bubbles; Argon; Cryogenics; Dielectrics and electrical insulation; Electrodes; Geometry; Hydrocarbons; Liquids; Microscopy; Nitrogen; Temperature;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.983879

Filename

983879