Accession Number : ADD008349
Title : High Rate Propellant.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Betts,Robert E
Report Date : 30 May 1978
Pagination or Media Count : 4
Abstract : A method of operating high burning rate solid propellant grains that have good mechanical properties and the high burning rate solid propellant grains prepared from multimodal blend of at least one ultra-high burning rate propellant that has been cured and ground to a predetermined particle size of from about 100 microns (0.1 millimeter) to about 5 millimeters and at least one uncured propellant composition that has high tensile strength and compatibility with the ultra-high burning rate propellant grain when cured. The solid propellant grain which has good mechanical and physical properties and a high burning rate burns with a flame that moves through the grain as a plane wave. Even though the individual components have different burning rates, it is the rate of the plane wave through the grain that is controlled by the averaging of the rate of burning through each of the particles of the multimodal blend and the binder propellant.
Descriptors : *Patents, *Rocket propellant grains, *Solid rocket propellant binders, *Burning rate, Particle size, Grinding, Mixtures, Physical properties, Mechanical properties, High strength, Plane waves, Solid propellant rocket engines
Subject Categories : Solid Propellant Rocket Engines
Solid Rocket Propellants
Distribution Statement : APPROVED FOR PUBLIC RELEASE