Titanium carbide or tungsten carbide with combustion synthesis to block porosity in c-c brake discs for antioxidation protection

A method of manufacturing an aircraft brake disc which comprises the steps of:

• providing a carbon-carbon composite aircraft brake disc with its non-friction surface presented in a horizontal plane to define an upper flat surface;
• dusting tungsten or titanium particles having an average diameter of 20 microns onto said flat surface;
• placing the upside down, powder-coated brake disc into a preheated oven having an inert atmosphere;
• initiating a combustion reaction comprising a reaction between the tungsten or titanium and carbon present in the composite aircraft brake disc, said combustion reaction forming tungsten carbide or titanium carbide in liquid form;
• permitting the liquid tungsten carbide or titanium carbide to flow into pores in said flat surface of the composite brake disc;
• and
• permitting the liquid tungsten carbide or titanium carbide to solidify within said pores, thereby imparting to said flat surface of the carbon-carbon composite aircraft brake disc a resistance to potential migration of anti-oxidant composition through the porosity of the composite brake disc.