I think that a sword made of Carbon nanotube and diamond would create the strongest, hardest, most tensile, sharpest sword on the planet. Carbon nanotube and diamond bond with eachtoher quite well can makes a solid hardended material. I think if Damascus steel is able to bond or meld it could further imrove its strength and durability.
Imagine a battle, where all of your knights or samurai, were equipped with this blade. Carbon nanotube would also create the most indestructible plated armor and rimmed shields. Your army would be indestructible. An easy to maintain, deadly light, durable, amazing sword. Can you mix things like silicon and tungesten into the picture? Im not sure if they will bond like the others.
nanotube

This result also sheds new light on the possible mechanisms that occur during carbon nanotube growth. Previously, the assumption that the catalyst has to be liquid often dominated carbon nanotube growth model considerations, but at these lower temperatures evidence has been found of a solid catalyst. These findings extend to the catalytic growth of other nanostructures in general.
Nanotech Paints
