[18p-C309-1~13] 8.2 Plasma deposition of thin film, plasma etching and surface treatment

△ [18p-C309-4] Comparison between characteristics of twin-cathode and twin-anode torches

〇(B)Kota Kawano¹, Hideki Sasaoka¹, Muneo Furuse¹, Satoshi Sakiyama² (1.NIT, Oshima college, 2.Yamaguchi Univ.)

Keywords:Plasma spraying, Twin anode plasma torch, Twin cathode plasma torch

The characteristics of the twin cathode plasma torch and twin anode plasma torch, which are high efficiency plasma spray equipment, were evaluated by measuring the temperature and velocity distribution of the sprayed particles. We used a newly designed system to measure temperature and velocity of sprayed particles without the influence of plasma emitting light because the conventional one has large errors in temperature measurements. The comparison shows that the twin cathode torch has advantages in increasing the temperature and the twin anode torch in increasing the speed.