Abstract
A resistively heated nozzle of silicon carbide (SiC) ceramic was developed for the production of high speed molecular beams for space environment simulation. The nozzle is able to withstand temperatures in excess of 1800°C and pressures to 30bars. In a seeded beam of 1% argon in 99% hydrogen, a speed of 3.9km∕s was achieved for the argon component at a nozzle temperature of 1150°C and a pressure of 23bars.
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