| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Polymeric-based Materials: Challenges and Potentials
|
| Presentation Title |
Characterization of Processing and Performance Properties of Ammonium Perchlorate Composite Propellant for Use in an Additive-manufacture System |
| Author(s) |
Dylan Purcell, Chelsey Z. Hargather |
| On-Site Speaker (Planned) |
Chelsey Z. Hargather |
| Abstract Scope |
Ammonium perchlorate composite propellant (APCP) is a commonly used solid propellant in commercial and defense applications. APCP consistent of powdered fuel and oxidizer cured in a polymeric binder. Additive manufacture can reduce the high cost of traditional motor casting processes. In the present work, propellants designed for additive manufacture in an extrusion-driven platform are characterized in terms of apparent initial viscosity, time-dependent viscosity changes, and combustion properties, as well as the tensile properties of the final product relative to a cast material. Both spindle and extrusion-based viscometry methods are employed and compared. Combustion performance is examined by manufacturing strands of material with integrated break-wires for accurately measuring burn rate. Tensile properties are determined by testing dogbones sectioned in different orientations relative to print direction to examine anisotropic behavior. Properties of the final product are compared to known ranges for commercial APCP, and the applications for the material are discussed. |