Synthesis of Porous Composite Materials via Combustion of a Mixture of Titanium, VT6 Alloy, and Amorphous Boron Powders

Self-propagating high-temperature synthesis without preheating has been realized in powder mixtures consisting of large spherical VT6 titanium alloy granules, small dendritic titanium particles, and black amorphous boron. Synthesis in a combustion wave involved a few steps: first, boron reacted with fine-particle titanium to form a boride matrix, which then reacted with molten VT6 titanium alloy granules. We have obtained a porous metal–ceramic material similar in structure to composites.