Advanced Fuel Systems for Ramjet-Powered Vehicles. Material Selection for Fuel System Simulator
Summary rept. 30 Jun 1969-31 Jan 1970
ATLANTIC RESEARCH CORP ALEXANDRIA VA
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A 7-month compatibility effort was conducted on materials potentially useful in ramjet fuel systems using the dense hydrocarbon fuel RJ-5 Shelldyne H. The results of this work were used to select materials for a full-scale fuel system simulator to be tested in the remainder of this program. The candidate materials included eight metals and eight nonmetallic materials. Immersion tests were conducted on all materials at both room temperature and at 160F, with the specimens evaluated by changes in appearance, volume, weight, tensile properties, and hardness. Additional compatibility tests were conducted under a high shear environment typical of ramjet turbopumps and under vibational and flexing loads typical of aircraft carriage and missile flight. For these tests, the materials were kept in contact with hot Shelldyne H. Candidate bladder materials were subjected to hot pressurant gases from solid-propellant gas generators, while in contact with fuel in a simulated fuel cell. Low temperature mechanical properties were determined for these elastomers.
- Properties of Metals and Alloys
- Jet and Gas Turbine Engines