Performance advantages of boron carbide
1. The most important performance of boron carbide is its extraordinary hardness (Mohs hardness is 9.3). The hardness is second only to diamond and cubic boron nitride. It is an ideal high-temperature wear-resistant material;
2. Boron carbide has a very small density and is the lightest among ceramic materials and can be used in the aerospace field;
3. Boron carbide has strong neutron absorption ability. Compared with pure elements B and Cd, it has low cost, good corrosion resistance and good thermal stability. It is widely used in the nuclear industry. The neutron absorption ability of boron carbide can also be passed Further improvement is achieved by adding B elements;
4. Boron carbide has excellent chemical properties. It does not react with acids, alkalis and most inorganic compounds at room temperature. It only corrodes slowly in hydrofluoric acid-sulfuric acid and hydrofluoric acid-nitric acid mixtures. It is the most stable chemical property. one of the compounds;
5. Boron carbide also has the advantages of high melting point, high elastic modulus, low shrinkage coefficient and good oxygen absorption ability;
6. Boron carbide is also a p-type semiconductor material and can maintain semiconductor properties even at very high temperatures.