In civil and military aviation, critical raw materials allow for the design of safer lightweight aircrafts that are also quieter and less polluting. In engines, cobalt, tantalum and tungsten are prized for their heat and corrosion resistance.
Magnesium-based superalloys can be found in the cabin. Coveted for being lightweight, they reduce fuel consumption. In the cockpit, the instruments for flight monitoring and pilot assistance function thanks to the electro-optical properties of neodymium and yttrium.