Abstract

Of the plasma methods used to improve the tribological properties of the solid surface [1-3], the treatment of metal pieces in the hybrid discharge, which is a combination of high voltage and electric arc discharges, seems very promising [4,5]. This method is developed in the Plasma Physics and Technology Laboratory at the Universidad Industrial de Santander (Colombia). In our work, the hybrid discharge is ignited in tungsten vapor. The plasma temperature and atomic composition of the discharge are measured through its optical spectrum.

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