Composite solid propellant compositions and methods of production and use thereof
AssigneeThe Board of Regents for the Oklahoma Agricultural and Mechanical Colleges
InventorsKurt Paul Rouser, Daniel Velasco, Caleb Besmer
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Abstract
A composite propellant composition is disclosed that includes an oxidizer and fuel, wherein the oxidizer includes a trimodal mix of ammonium perchlorate containing three particle sizes present in substantially equal amounts, and wherein the fuel includes aluminum powder. Also disclosed are propellant grains and rocket motor assemblies that include the composite propellant composition, along with methods of making and using the compositions, grains, and assemblies.
Claims4
A method of producing a solid propellant grain, the method comprising the steps of:
- (1) combining, either simultaneously or wholly or partially sequentially, a resin binder, aluminum powder, and copper chromite to form a mixture;
- (2) adding a plasticizer to the mixture;
- (3) degassing the mixture;
- (4) adding, in a sequential order, ammonium perchlorate at three different particle sizes to the mixture in substantially equal amounts, wherein the average particle size of the three particle sizes is in a range of from about 199 μm to about 261 μm, and wherein a smallest particle size is added last;
- (5) degassing the mixture;
- (6) adding a curative agent to the mixture;
- and
- (7) disposing the mixture into a casting liner and allowing the mixture to cure and harden to form a solid propellant.
Dependencies are inferred from the claim text.