Selection criteria for metals and plastics as construction materials for long term pressure-testing apparatus on liquid propellants.
Auswahlkriterien für Metalle und Kunststoffe als Konstruktionsmaterialien für Druckapparate zur Langzeit-Lagerungsmessung von flüssigen Treibstoffen
The Paper describes the testing and selection of metallic and non-metallic materials of application in pressure testing apparatus to determine the life term of HAN-based liquid propellants (LPs). Metallic materials are necessary for pressure sensors and non-metallic materials for sealing of the testing apparatus. Selection criteria for the metals are their corrosion-resisting quality and their capacity to influence or restrict the chemical stability of the LP. Selection criteria for the sealing materials are their impermeability to gases, deformation under strain and compatibility with the LP used. The testing apparatus is being used at the present time.