Erosion of Pt-Rh Electrode in Atmospheric-Pressure Mesoplasma Jet

Pt-Rh alloy was examined to use as rod electrode in pulsed arc of PEN-Jet (Plasma ENergized-Jet), which is one of atmospheric-pressure mesoplasma jets, with working gas of air. Erosion rate of Pt-Rh was lower than Pt. As increasing the Rh concentration, erosion rate decreased.