Effect of Hydrogen Donor on the Morphology of Carbon Formed During Pyrolytic Stressing of JP-8 Jet Fuel

The effect of the previously developed binary hydrogen donor on the morphology of carbon deposits formed on the superalloy, Inconel 718, during stressing of JP-8 under pyrolytic conditions while dissolved oxygen is present in the fuel, was studied. There was an increase in the prevention of the total aromatic carbon that was formed when the binary hydrogen donor was added (32% reduction). There was a 62% reduction in the formation of bridgehead carbon associated with PAH formation. However, the reductions of such compounds being formed would allow the enhanced formation of filamentous carbon. The enhanced production of filamentous carbon was caused by the metal particles on the tips of the filaments remaining active, since they were not being encapsulated by pyrolytic carbon.