Regression Rates of Protrusion and Lattice Augmented Fuel Grains in Hybrid Rockets

What is it about?

Hybrid rockets using paraffin wax fuel face issues with the wax being too weak, which can lead to motor failure. To solve this, researchers embedded a plastic lattice (PLA) in the wax to improve its strength and added special heat-resistant protrusions made from materials like mullite and silicon carbide. The lattice strengthens the wax, while the protrusions help the fuel burn more efficiently by enhancing heat transfer. The result is a fuel that maintains a good burn rate, similar to pure paraffin, while being much stronger, reducing the risk of motor failure.

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