Arc Glow Research Articles

Electric-arc steam plasma generator

Investigation results on the arc plasmatorch for water-steam heating are presented. The construction arrangement of steam plasma generator with copper electrodes of the stepped geometry was firstly implemented. The energy characteristics of plasmatorch and erosion of electrodes reflect the features of their behavior at arc glow in the plasma-forming environment of steam. The results of numerical study of the thermal state of the composite copper-steel electrodes had a significant influence on optimization of anode water-cooling aimed at improvement of its operation life.

Synthesis of nanocrystalline carbon upon methane pyrolysis in arc discharge

We have studied a carbon material synthesized upon methane pyrolysis in the AC arc discharge using graphite electrodes. Methane was heated by passing through one of the electrodes. Carbon was condensed on the electrodes near the region of arc glow. The synthesized material was analyzed with the help of transmission electron microscopy, X-ray-phase spectroscopy, and Raman scattering spectroscopy. It is found that the synthesized material is a nanocrystalline carbon material composed of closed carbon nanostructures of various forms, carbon nanotubules, and fullerene-like (bulbous) particles. The synthesized material morphology is similar to the structure of the material precipitating onto the cathode in an arc discharge during anode sputtering in an inert gas medium.

The Newly Deposited a Cu Electrode on Ferrite Ceramics by Added Arc Glow Discharge Method.

Added arc glow discharge method is to deposit Cu metal electrode on ferrite ceramic chips in a vacuum atmosphere. A lot of phenomena, different from usual printing silver electrode method occurred during the deposition, as observed by scanning electron microscopy (SEM) the microstructure of electrode joints and energy-dispersive X-ray (EDX) analysis. Interfacial migration and diffusion occur within the metal layer and the ceramic matrix, respectively. The effect of different deposition procedures on the electrical and magnetic properties of the ceramic samples (chip and toroidal) was also investigated. The results show that, through an optimized procedure, the joint quality of deposited Cu electrodes and the properties of the relative components can significantly improved.