There are two stable isotopes of natural boron element, namely boron-10 and boron-11, among which boron-10 has a strong ability to absorb neutrons. Due to this characteristic of boron-10 isotope, the related products of boron-10 isotope are widely used in military protection, nuclear weapons and nuclear industry.

Boron carbide is a kind of material with high hardness, good wear resistance, small specific gravity and acid and alkali corrosion resistance. Because it can absorb a large number of neutrons, it is widely used in the nuclear industry as the control rod material of the reactor and the safety shielding material of the nuclear core.