![]() ![]() This property makes it suitable for producing objects that are exposed to such materials. Iridium is not affected by acids, bases or most other strong chemicals. Iridium linings and fabrications are also suitable for glass production because the metal is inert in contact with molten glass. Over the past couple of decades, iridium’s main application has been in the production of synthetic sapphire and other crystals which are vital for LED and OLED lighting and flat screen panels, as well as other crystals used in mobile electronic devices. The demand for this kind of application is certain to increase in the years to come. It is widely used in anode catalysts for PEM electrolyzers, which are needed to produce green hydrogen. Iridium has catalytic properties which make it suitable for hydrogenation. The international prototype standard meter kept at the “Pavillon de Sèvres” in France is made from a 90% Pt–10% Ir alloy. Because of its corrosion-resistant property, it is used to set standards in weights and measures. Platinum-iridium alloys are found in jewelry, pen points, surgical pins and pivots, as well as electrical contacts and sparking points. Its main application is therefore to harden platinum by producing a platinum alloy, usually used in pacemakers, medical probes and other applications of this type. Though brittle, iridium can be worked if brought to a white heat of 1,200☌ to 1,500☌ (2,200 to 2,700 degrees Fahrenheit). Iridium from the object is key evidence for this theory.īecause of the difficulties involved in preparation and fabrication/production, the pure metal has few applications. Some scientists think that 66 million years ago, a meteor or asteroid impact like this wiped out the dinosaurs. A large meteorite impact would have caused a huge dust cloud, depositing iridium across the globe. Only a very thin layer of iridium exists in the Earth’s crust, although meteors and asteroids contain high levels of the metal. Have paleontologists, Jurassic Park fans or Ross Geller from Friends made you curious about dinosaurs? Have you always wondered why they are no longer on the planet? There are many theories about the cause of the dinosaurs’ extinction and one of them is linked to our metal of the month! ![]()
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