| abstract |
There is described a method of forming an oxidation resistant coating on a cermet comprising tungsten carbide, tungsten boride, or boron carbide and a metallic binder material. The method comprises exposing the cermet to silicon in the presence of an activator to form a mixture, exposing the mixture to an inert gas, and heating the mixture to a temperature T for a time t, thereby forming a coating on the cermet. |