文档介绍：34 Propellants, Explosives, Pyrotechnics 27, 34 ± 38 (2002)
Experimental Research of the Effects of Superfine Aluminum
Powders on bustion Characteristics of NEPE Propellants
Fang Chong and Li Shufen*
Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 (P. R. China)
Summary Wang(2) et al. selected four different aluminum particle
sizes (30 mm,5±7mm, 1 mm, and <1 mm) in HTPB/HMX/
bustion behavior of grading aluminum powders AP/Al propellants, in which the solid content was 87 wt% to
containing superfine aluminum powder (SAl) in NEPE propellant investigate their effects. Corresponding experimental re-
has been studied by several kinds of experimental techniques. The
results indicate that the usage of grading aluminum powders sults showed that SAl could raise the burning rate, reduce
containing SAl can effectively improve bustion character- the pressure exponent and improve the propellant×-
istics of NEPE propellant and bustion efficiency of bustion characteristics. In NEPE propellants, the similar
aluminum. The reason is that SAl has the bustion research work should be carried out more rigorously,
and thermochemical properties from those of generally powdered especially for the effects of SAl, due to plex
aluminum (Al). SAl is inclined to burn in a single step, hence
greatly increasing the heat released during the thermal -