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Improving temperature sensitivity of the mechanical strenght of foamed propellants

: Böhnlein-Mauß, J.; Kröber, H.; Pfatteicher, A.; Kronis-Rudigier, G.

Volltext urn:nbn:de:0011-n-761126 (22 KByte PDF)
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Erstellt am: 14.11.2013

Fraunhofer-Institut für Chemische Technologie -ICT-, Pfinztal:
Energetic Materials - Processing and Product Design : 39th International Annual Conference of ICT, June 24 - 27, 2007, Karlsruhe
Pfinztal: Fraunhofer ICT, 2008
ISSN: 0722-4087
Fraunhofer-Institut für Chemische Technologie (International Annual Conference) <39, 2008, Karlsruhe>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ICT ()

Mechanical and burning characteristics of foamed propellants used as combustible cartridges have to be well composed in order to provide their proper function in a weapon. A basic problem, which emerges when mechanical stability at the shot is unsufficient, is a phenomenon called gas-slipping. Gas-slipping occurs when a cartrigde cannot withstand the boost caused by the igniting-process. In this case gas gets (“slips”) from the cartridge chamber into the gun barrel before the projectile arrives. This effect causes undesirable impacts on a weapon, like low projectile velocities and low reproducibility of shot-series. Especially the temperature behaviour of the mechanical properties of foamed propellants plays an important role in these considerations.