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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Druckformat: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2018021254
pages 61-79

AMMONIUM DINITRAMIDE/GLYCIDYL AZIDE POLYMER (ADN/GAP) COMPOSITE PROPELLANTS WITH AND WITHOUT METALLIC FUELS

Volker Gettwert
Fraunhofer Institut für Chemische Technologie, Pfinztal, 76327, Germany
Andrea Franzin
Fraunhofer Institut für Chemische Technologie ICT, Pfinztal, Germany; Department of Aerospace and Science Technology, Politecnico di Milano, Italy
Manfred A. Bohn
Fraunhofer Institut für Chemische Technologie ICT, Pfinztal, Germany
Luigi T. DeLuca
Space Propulsion Laboratory (SPLab), Department of Aerospace Science and Technology, Politecnico di Milano, Milan, I-20156, Italy
Volker Weiser
Fraunhofer Institut für Chemische Technologie ICT, 76327 Pfinztal, Germany

ABSTRAKT

Ammonium dinitramide/glycidyl azide polymer (ADN/GAP) composite propellants with or without metallic fuels are most likely candidates for a green alternative to ammonium perchlorate/hydroxyl-terminated polybutadiene (AP/HTPB) formulations. These ingredients are not only interesting in terms of environmental friendliness but also to overcome the intrinsic performance limitations of AP/HTPB. This paper describes some properties and the burning behavior of ADN/GAP-based propellants, as a function of ADN particles sizes and metallic fuel (Al, AlH3), regarding burning rate, pressure exponent, flame temperatures, particle temperatures, and agglomeration phenomena. Furthermore, aging properties and the formation of pores during sample preparation are discussed. A small-scale motor test of an ADN/GAP/Al propellant demonstrates the basic applicability of ADN/GAP-based formulations.


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