Vanadium is a hard, ductile, silver-grey metal.
The main use of vanadium is in alloys, especially with steel. 85% of all the vanadium produced goes into steel, 10% goes into alloys of titanium and 5% into all other uses.
A small amount of vanadium adds strength, toughness, and heat resistance. It is usually added in the form of ferrovanadium, a vanadium-iron alloy. Vanadium steel alloys are used in gears, axles and crankshafts.
Vanadium Oxide windows.
Energy-generating window unveiled. Scientists in China have designed a "smart" window that can both save and generate energy, and may ultimately reduce heating and cooling costs for buildings.