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9. Conclusion
Since the 1970s, thermal plasma applications at powers below 400 kW have been developed for cutting, welding, reloading, spraying, particle spheroidization, spectrochemical analysis, and in recent years for nanometric powder synthesis, plasma-assisted CVD deposition and zone fusion purification.
A great deal of progress has been made in several areas:
improved torch design, in particular to limit electrode wear;
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creation of new torches, e.g. arc-spray torches for :
axial particle injection,
shooting inside engine cylinders,
reduce bow foot fluctuations,
operate in a controlled atmosphere with chamber pressure down to 1 mbar,
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Documentation sources
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References
Events
Congress
Plasma: International symposium on plasma chemistry, held every two years. It brings together some 1,000 researchers and industrialists. The last one took place in Kyoto in August 2007.
Thermal spray: international thermal spray conference, held annually. Brings together 1,500 researchers and industrialists with an exhibition of equipment (50 to 80 industrial companies). The last one was...
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Suppliers
Welding and cutting
SAF (France)
Thermadyne Inc. Decoupage (United States)
Power plasma torches
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