1) High hardness: The most important property of boron carbide lies in its extraordinary hardness (Mohrr hardness is 9.3). Its hardness is second only to diamond and cubic boron nitride, and it is the most ideal high-temperature wear resistant material.

2) Low density: Boron carbide has a low density, which is the lightest ceramic material and can be used in the field of aerospace;

3) Boron carbide has a strong neutron absorption capacity: compared with pure elements B and Cd, it has low cost, good corrosion resistance, good thermal stability and is widely used in the nuclear industry. The neutron absorption capacity of boron carbide can be further improved by adding element B;

4) Boron carbide has excellent chemical properties: it does not react with acids, bases and most inorganic compounds at room temperature, and only corrodes slowly in the mixture of hydrofluoric acid and hydrofluoric acid and nitric acid. It is one of the compounds with the most stable chemical properties.

5) Various physical properties of boron carbide: Boron carbide also has the advantages of high melting point, high elastic modulus, low expansion coefficient and good oxygen absorption capacity;

6) Boron carbide is a P-type semiconductor material: it retains semiconductor properties even at very high temperatures.