New Cathode Materials for Air-Plasma Cutting(Materials, Metallurgy & Weldability)
This study has been carried out to develop new cathode materials for air plasma cutting. The consumption of Rhenium-Yttria and Ruthenium-Yttria electrodes was compared with that of Hafnium and Zirconium electrodes, which have been widely used. Rhenium including 15〜40% Yttria and Ruthenium including 10〜35% Yttria showed lower consumption rates rather than Hafnium electrode and Zirconium in case of continuous life time test. Furthermore, the Ruthenium including 15% Yttria showed a superior erosion resistance in case of periodic operating test at 25A, compared with other electrodes.
- Transactions of JWRI
Transactions of JWRI 18 (1), 127-133, 1989-06