Material Modification in Glow Discharge

Abstract

The development of new methods to improve physical and stressstrain properties of materials is an important contribution to the development of modern technologies and targeted control of their behavior. The optimum combination of stressstrain properties and electrical ones to improve performance attributes of materials is very important. The basic purpose of this work is the study of long-term effects in materials resistivity changes after treatment in a glow discharge. There are presented the results of measurements of a resistivity relative value in copper-graphite insertions after a radiation treatment in a glow discharge. The graphic dependences obtained show that in the course of two years in samples a long-lived state, a structure of irradiated composite material remains. It is a sign of that the improvement of performance attributes of insertions investigated bears longterm character. An anomalous temperature dependence of electric resistance after an irradiation treatment if a glow discharge was detected in technical copper samples. First of all this anomaly manifests itself in copper resis-tivity decrease after an irradiation treatment at different temperatures obtained that is contrary to the fact determined of the simultaneous increase of dislocations density in samples irradiated.

Simulation of the Processing Process in a Glow Discharge Plasma Generator

“…Energy-efficient methods of ion-plasma processing that improve the functional properties of tools and other crystal structures include the action of glow discharge plasma formed in controlled technological environments [1,2]. Structural changes appear in the surface layer of materials under the influence of a wide range of energy flows.…”

“…The treatment of ready-to-use products with glow discharge plasma radiation makes it possible to optimize the advantages of the processes of interaction of incoming charged particles with the surface of various materials. This allows achieving the required properties by varying particle energy, radiation dose, temperature of irradiated objects, materials of electrodes and medium formed in the interelectrode gap [1,2]. The radiation of the plasma glow discharge has a wide range of ion flux in ions and their energy.…”