An investigation of preferential interfacial reactions in nonmetalized composite solid propellant combustion
Biery, George Monroe
Naval Postgraduate School
MetadataShow full item record
Four nonraetalized solid propellants were burned at 500 psi in strands of 1/2 in. by 1/2 in. cross section and 2 in. length in both a dewetted and an as-cast state. Strands were burned at acceleration levels from zero to lOOOg normal and into the burning surface, and 50g and lOOOg normal and out of the burning surface. The effects of changing interfacial characteristics of the oxidizer and binder by prestressing (dewetting) were studied to determine if preferential interfacial reactions between binder and oxidizer particles provided an accurate explanation of burning rate augmentation. Preferential interfacial reactions did not exist in the propellents studied at the pressures and accelerations at which the investigation was made. Soft binders in nonmetalized propellants were found to allow oxidizer-binder Interaction at high accelerations resulting in unstable combustion and self-extinguishment. Nonmetalized composite propellants that did not contain opacifiers appeared to burn more erratically in a positive acceleration environment.
Showing items related by title, author, creator and subject.
Brown, Wendell Earl (Monterey, California. Naval Postgraduate School, 1972-03);Ammonium perchlorate/polybiitadiene-acrylic acid (AP/PBAA) sandwich burners were burned in a combustion bomb. These were formed by bonding two polycrystalline AP wafers together with PBAA. Pressures were varied from 200 ...
Abraham, Michael (1973-09);Nonmetallized double base propellant and ammonium perchlorate/ binder sandwich combustion were studied in standard and high acceleration environments. Experimental techniques used were high speed motion pictures, two-color ...
Sturm, Edward John (Monterey, California. Naval Postgraduate School, 1968-03);The average burning rates of a series of composite solid propellants were measured in acceleration fields up to 1000 G using a combustion bomb mounted on a centrifuge. The propellants were burned at constant pressures ...