Cobalt Applications
Cobalt Applications
Cobalt is used mainly in production of various alloys. It increases hot-resistance of steel, its strength and other properties. Cobalt is used in magnets and in magnetic recording media (low-coercive materials) as well as in materials of electromagnet cores, transformers etc. Hard-magnetic alloy such as samarium-cobalt magnets, are used in instrument engineering.
In permanent magnets are used alloys which contain 52% cobalt and 5-14% vanadium and chromium. Cobalt and some of its compounds are also used as Catalysts for the petroleum and chemical industries and pigments (cobalt blue and cobalt green).