... molybdenum is used in cathodes, cathode supports for radar devices, current leads for thorium cathodes, magnetron end hats, and mandrels ... important in the missile industry, where it is used for high-temperature structural parts, such as nozzles, leading edges ... struts, reentry cones, heal-radiation shields, heat sinks, turbine wheels, and pumps. Molybdenum has also been useful in the nuclear, chemical ...