Comparing volt-ampere characteristics of electrolytes and probe characteristics in afterglow plasma

Abstract

Experimental volt-ampere characteristics in plasma and electrolytes are presented. As it was shown, electrons quickly leave a discharge volume in conditions of low pressures. As a result, ionic plasma forms. Parameters of the plasma could be calculated with the application of Langmuir’s theory. An increased value of temperature could be associated with collisions in a volume distributed charge sheath. A temperature correction was made with a method, taking into account collision processes within the sheath. As it noted, the volt-ampere characteristic becomes linear when many collisions occur in the sheath. A comparison of the characteristics in ion-ionic plasma and electrolytes also was made. The ion-ionic plasma has a similar electrolyte charge kinetics. Measured linear characteristic means a bending out from the Maxwell distribution. An existence of a small current near zero of potential in solutions concerns with the formation of the sheath. The formation is under the influence of the positive and negative ions drift, a hydration and spatial orientations of molecules of the water. Refs 10. Figs 12. Tables 1.