Mechanical and Thermal Characterization of Paraffin-BasedHybrid Rocket Fuels

This paper presents thermal properties and mechanical strength of hybrid rocket fuels with the base material of paran wax. The mechanical strength includes breaking
point strain, modulus of elasticity and tensile strength at ultimate point for three different variant of paran-based formulations were examined and results were
compared with pure paran fuels. The results indicate that the tensile strength and elastic modulus of paran-Al fuel having Al 5 wt % were increased by 32.2%, and
14.1% respectively compared to those of pure paran. The average tensile strength and elastic modulus of paran-CB (0.5 to 1.5 wt%) fuel were increased by 29.5%, and
16.3% compared to pure paran, respectively. Thermal properties were derived from were carried out with Differential Scanning Calorimetry (DSC) to explore the
endothermic and exothermic reactions of samples with paran-based fuels. The values of heat of fusion calculated from the area under endothermic reaction were found about 120J/g and 126J/g for the paran and paran/polyethylene sample,
respectively