What are metallic fuels?

Metallic fuels are a type of fuel made from certain metals that can undergo exothermic reactions, producing heat and combustion products. Common examples include magnesium and aluminum, which can burn in the presence of oxygen to generate energy. These fuels are considered for applications in advanced propulsion systems, pyrotechnics, and solid rocket propellants due to their high energy density and potential for high-temperature combustion. Their use also raises considerations regarding safety and environmental impact.