Research Article
The Influence of Anode Inner Contour on Atmospheric DC Plasma Spraying Process
Table 3
The relationship between Ar flow rate and arc voltage and net power and thermal efficiency (current: 550 A).
| | Working gas (slpm) | Voltage (V) | Net power (kW) | Thermal efficiency (%) | | Ar | H2 | Cylindrical | Laval | Cylindrical | Laval | Cylindrical | Laval |
| | 40 | 10 | 74.8 | 73.3 | 22.9 | 20.9 | 55.7 | 51.9 | | 50 | 10 | 78.0 | 76.0 | 24.4 | 22.7 | 56.9 | 54.3 | | 60 | 10 | 79.9 | 79.5 | 25.6 | 24.8 | 58.3 | 56.7 | | 70 | 10 | 81.0 | 82.4 | 26.4 | 26.2 | 59.3 | 57.9 | | 80 | 10 | 82.5 | 85.2 | 27.3 | 28.3 | 60.2 | 60.4 |
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Note. H2 flow rate is 10 slpm.
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