THE ELECTRICAL CONDUCTIVITY OF SEEDED GASES.

Abstract

A crude but simple method of evaluating the electrical conductivity of seeded-plasma, applicable to both equilibrium and non-equilibrium cases is presented. A simplified method, that of the mean-free-path, is used in which the force acting on an electron due to the externally applied electric field is considered the only force that causes collision between the electron and the neutral atom or molecule. This method does not consider the effect of the ions; however, in the ordinary practice of seeding, the seeding fraction is usually less than 1% and the temperature rarely exceeds 3000K. Under these circumstances the effect of ions is believed to be negligible. Satisfactory results are obtained in the temperature range of practical interest, but serious error may occur when applying this method to higher temperature regions where the ionization becomes so significant that Coulomb interaction is important. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1965
Accession Number
AD0627900

Entities

People

  • Tse-fou Zien

Tags

DTIC Thesaurus Topics

  • Chemical Reaction Properties
  • Chemical Reactions
  • Collisions
  • Conductivity
  • Electric Fields
  • Electrical Conductivity
  • Electricity
  • Electromagnetic Fields
  • Electrons
  • Ionization
  • Mean Free Path
  • Molecules
  • Physical Properties

Readers

  • Plasma Physics.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics