For atomic energy industry and defense industry: graphite has a good neutron reducer for atomic reactor, uranium one graphite reactor is a application of more atomic reactor. The deceleration material in the atomic energy reactor for power should have high melting point, stability and corrosion resistance, and graphite can meet the above requirements.
The purity requirement of graphite used as an atomic reactor is very high, especially since the boron content should be less than 0.5 PPM.
In the defense industry, graphite is also used to make solid fuel rockets, graphite nozzle, graphite nose cones, parts of space navigation equipment, thermal insulation materials and anti-ray materials.