Vapor-Condensed Materials with Ti and W Carbides
摘要
Have been study the possibilities of obtaining materials containing hard carbides by electron beam melting, evaporation and condensation of metals (titanium and tungsten) and carbon from two different sources. It was found that in the first case it is possible to obtain pure titanium carbide with high mechanical properties, such as micro-hardness up to 23 GPa, and fracture toughness more than 5 MPa × m1/2. In the second case, a very small amount of tungsten (3–14 wt.%) evaporates. In this way, pure amorphous carbon (up to 97 wt.%) can be obtained, but it is difficult to obtain tungsten carbides.