Boron carbide with a low density, a big strength, good stability in high temperature and excellent chemical stability and so on, can be used to make the tank armours, bullet-proof jackets and many industrial fields, whose Mohs hardness is 9.30.
| 碳化硼（B4C）物理性能參數(shù) B4C physical property | ||
| 技術(shù)參數(shù)Technical Parameter | 單位Unit | 無(wú)壓燒結(jié)碳化硼 B4C |
| 維氏硬度Hardness | GPa | ≥24 |
| 顯氣孔率Porosity Rate | % | ＜0.2 |
| 體積密度Density | g/cm3 | ＞2.44 |
| 壓縮強(qiáng)度Compressive Strength | MPa | 2500 |
| 彎曲強(qiáng)度Flexural Strength | MPa | 480 |
| 熱膨脹系數(shù)Coefficient of Heat Expansion | 10-6/℃ | 4.0 |
| 導(dǎo)熱系數(shù)Thermal Conductivity | W/(M·K) | 40 |
| 碳化硼含量Content of B4C | % | ≥90 |
| 彈性模量Elastic Modulus | GPa | 450 |
| 使用溫度Useful Temperature | ℃ | 1400 |