Figure 7
From: Materials degradation in non-thermal plasma generators by corona discharge

Tungsten wire of 25 μm exposed at (a) 0 h, (b) 20 h, (c) 280 h and (d) 450 h by atmospheric corona discharge.
From: Materials degradation in non-thermal plasma generators by corona discharge

Tungsten wire of 25 μm exposed at (a) 0 h, (b) 20 h, (c) 280 h and (d) 450 h by atmospheric corona discharge.