America’s aerospace industry is dusting off decades-old technology to protect critical components in jet engines. The industry is scrambling to replace yttrium, a rare earth metal used in heat-resistant coatings that protect turbine blades, vanes and other jet-engine components from extreme temperatures, Reuters reported. China’s stranglehold on the metal has...
America’s aerospace industry is dusting off decades-old technology to protect critical components in jet engines. The industry is scrambling to replace yttrium, a rare earth metal used in heat-resistant coatings that protect turbine blades, vanes and other jet-engine components from extreme temperatures, Reuters reported. China’s stranglehold on the metal has…









