Combustion of aluminum particles in carbon dioxide

摘要: Recently, it has been determined that Martian soil is rich in metallic elements such as Al, Mg, Si, and Fe. Because atmosphere consists largely of CO2, a propulsion system using metals fuel CO2 oxidizer would enable one to utilize Mars's resources very efficiently. Currently, experimental data on metal combustion are scarce an study aluminum particle presented this work. Uniform initial size temperature particles produced ignited pulsed microarc. The free-falling bum the atmospheric pressure CO2. Flame radiation monitored real time, measured three-color optical pyrometer coupled computer-based acquisition system. Particles quenched at different burn times their surface morphology internal compositions studied electron microscopy techniques. Preliminary experiments with commercially available aluminum-rich Al-Mg Al-Si a...