![]() SuperalloysĬobalt-based superalloys form high-temperature resistant parts for gas turbine aircraft engines, space vehicles, rocket motors, and other aerospace applications. Below are some of its common applications: Alloys 1. Cobalt applicationsĬobalt has been used in many industrial, commercial, and military applications. The minerals are then leached with a 100 g/L ammonium hydroxide (NH 4OH), 300 g/L (NH 4) 2SO 4 solution in a controlled oxidation leach to solubilise nickel, copper, and cobalt. This reduces nickel and iron to ferronickel, and the cobalt and copper to a metallic state. The laterite ore undergoes a reduction process at 525☌ with carbon monoxide. The extraction of cobalt can be done using solvent extraction. It is mined along with nickel, silver, lead, copper, and iron ore and is often obtained as a by-product. Production and processingĬobalt occurs typically in nature in cobaltite, smaltite, and erythrite minerals. The most popular is cobalt-60 with a half-life of 5.3 years, which is widely used in medical applications. It has a hexagonal closed pack crystal structure at temperatures below 417 ☌ (783 ☏) and has 12 radioactive isotopes.
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