Article: Typical boron carbide ([B.sub.4]C) properties.(Illustration)

Boron carbide is the hardest material after diamond, giving it outstanding wear resistance. Its mechanical properties, especially its fracture toughness, are low, limiting its application. However, it is used extensively for ballistic armor and blast nozzles. Boron carbide is also a neutron absorber, making it a primary choice for control rods and other nuclear applications.*

 
Properties Units 
 
Physical 
 
Chemical Formula 
Density, [rho] g/[cm.sup.3] 
Color 
Crystal Structure 
Water Absorption   % @ room temperature (R.T.) 
Hardness   Vickers @ R. T. (GPa) 
Hardness  ...

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