| Pure iridium is used for making crucibles, especially the aggressive media resistant ones because of high corrosion resistance, which are used for laser crystals growing, and glass blowpipes. It is also used as alloys hardening agent in platinum alloys increasing their strength in 10 %; meanwhile 30% iridium doping increases the strength until 99 kg/mm2. Platinum-iridium alloys were used for first mall and length standard as well as in jewelry. Iridium is used in supercolliders in the production of antimatter, specifically antiprotons. |