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What are we doing in the aerospace industry?
Satellites are required for the positioning of your GPS-based navigation device. They circle around the earth at an altitude of approx. 20 km at a speed of approx. 14,000 km/h. To keep the position of the satellite constant at all times, small thrusters are fired briefly. The higher the combustion temperature, the more effective the small nozzles are. To meet these high thermal-mechanical requirements, parts of the nozzles are cast from platinum alloys and then machined.
To achieve an optimum result, the crucible must
•be extremely temperature-resistant
•be low wetting
•not release any substance to the alloy
Therefore our zirconia crucibles are applied here!