How to use iridium in a sentence

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Sentence Examples Along with ruthenium, rhodium, osmium, iridium, and platinum, it belongs to the platinum group of metals. Nickel, rhodium, and iridium have their uses, and from there you go off into some real esoterica. They found the rare element iridium in the thin clay layer that caps the rocks of the Cretaceous era. Other sources of high iridium concentrations are extraterrestrial objects, such as meteorites or comets. None of meitnerium's chemistry has been researched, but it should resemble other elements of group 9, like iridium. The earth's crust is depleted in iridium and other platinum group elements, while meteorites are enriched in them. During cupellation, osmium and ruthenium are partly volatilised and iridium is partly absorbed by the cupel. These so-called face-centered cubic close-packed structures are common in metals such as aluminum, rhodium, iridium, copper, silver, and gold. It is also classified with a group of similar metals, including ruthenium, rhodium, palladium, osmium, and iridium, with similar properties. Eubrontes giganteus, for example, is there a mere 10,000 years after the iridium anomaly. Jewellery made of platinum, iridium and palladium gleamed majestically, now and then emitting flashes of brilliant light from the studded diamonds. Furthermore neither a creation nor a strengthening of a dominant position occurs in the markets for iridium and ruthenium. He removes it, a lustrous platinum and iridium cylinder, from under two glass bell covers. The cartridge anodes are preferably plated with a mixed metal oxide such as iridium oxide and ruthenium oxide to catalytically improve the production of oxygen. The markets for rhodium, iridium, osmium, ruthenium are less well developed. The demand for ruthenium and iridium is much lower than that for platinum or palladium. Combinations of iridium and platinum are used in electrical contacts, such as electric spark plugs. With the exception of two of the platinum-group metals, osmium and iridium, they have the highest melting temperatures and lowest vapor pressures of all metals. It is a shiny cylinder made of iridium and platinum and it is the only thing in the universe whose mass is known with infinite precision. The metre was the distance between two scratches on a bar composed of a special alloy of platinum and iridium. Show More Sentences Two years later, a Russian satellite crashed into a communications satellite owned by the company iridium. A lack of iridium is the reason Dr Kennett and his colleagues think the collision they believe they have discovered was with a comet rather than an asteroid. Palladium silver matt designo magno platinum paint finish, with the alternative of obsidian black, iridium silver, carneol red or flint grey metallic paintwork. The asteroid theory has met with skepticism among paleontologists, partly because the amount of iridium dispersed by the collision is more typical of that of a smaller object, such as a comet. Because iridium is highly resistant to erosion, this precious metal is ideally suited to the more aggressive firing characteristics of these applications. This enables Umicore to maximize the recovery of precious metals such as platinum, palladium, rhodium, ruthenium and iridium that have become so crucial to so many hi-tech applications. You'd need an asteroid of about 5km diameter to contribute that much iridium and osmium. In 1803-1804 Smithson Tennant discovered osmium and iridium, and William Hyde Wollaston found rhodium and palladium. Dissolution of the bead is complicated by the presence of iridium, rhodium, or ruthenium, so that special solubilizing techniques may be required. According to the notification AAC agrees that the rhodium market is a truly global market, whereas their data on iridium, osmium and ruthenium are insufficient to answer this question. Prof. Sapritsky noted that the VNIIOFI has developed promising new blackbody sources based on the eutectic materials, iridium and rhenium carbides. Iron, cobalt, nickel, copper, zinc, ruthenium, rhodium, palladium, silver, cadmium, tin, iridium, platinum, gold, and lead are more or less commonly used for plating. But the tungsten and the iridium make the alloy, its abrasion resistance, degree of hardness, the intensity, the heatproof quality obtained the further promotion, thus has guaranteed the product uniformity well. A fern spike in the rocks is thus a good indication that something terrible has happened. Both an iridium anomaly and a fern spike appear in rocks at the end of the Triassic, too. The first geological indication of the impact that killed the dinosaurs was an unusually high level of iridium in rocks at the end of the Cretaceous, when the beasts disappear from the fossil record. A new iridium satellite communication system will allow the researchers to receive data and transmit new instructions each time the robots surface before beginning a new observation cycle. The automaker has also launched an iridium tough spark plug that ensures higher ignitability than the normal plugs. When the neutron flux subsides, these nuclei beta decay into stable isotopes of osmium, iridium, and platinum. In one case, a rhenium atom condensing atop a cluster of iridium atoms appeared to move an iridium atom out from the edge and take its place. Norris said brown deposits, like that in the core sample, have been found elsewhere and they have a high content of iridium, a chemical signature of asteroids. Show More Sentences It also mines gold, silver, tellurium, selenium, iridium and ruthenium. The iridium anomaly seems to be related to a large quantity of siderolite material most likely from a 10-km asteroid that struck Earth 65 million years ago. Iridium is neither very ductile nor malleable at room temperature, although it becomes more ductile at higher temperatures. Because the Iridium network covers the entire Earth at all times, such leakage could cripple astronomers' observations anywhere. Two major players providing satellite phone services for yachts are Iridium and Globalstar. Similarly bold plans have misfired elsewhere, most memorably with the U.S. firm Iridium, whose scheme to provide global satellite phone coverage failed spectacularly. The Iridium low-earth orbiting satellite constellation covers the entire planet and provides services where no other means of communication exist. The offer applies to Telenor service providers and customers using Iridium services and who meet the program qualifications developed by Iridium Satellite. This includes Ship Security Alerting System, Long Range Identification and Tracking, AIS-SARTs, Iridium communication services and amendments to GMDSS certification. The top after-market Nasdaq gainers Friday were JDS Uniphase Corporation, MannKind Corporation, Iridium Communications Inc and Apollo Investment Corporation. Examples from Classical Literature The disulphide, IrS2, is formed when powdered iridium is heated with sulphur and an alkaline carbonate. Platinum is used in telegraph keys, and iridium, being very hard, for nibs in the ends of gold pens. A metal discovered by Claus, associated with iridium, in the residue from crude platinum, which is insoluble in aqua regia. An alloy of iridium and osmium has been employed for tipping the nibs of gold pens. The rare metal iridium affords a blue which is a mixture of the oxide and the sesquioxide. Monoxide, IrO, prepared by adding potassium hydrate to the hexachloride of iridium, and digesting the precipitate in an acid. The telephone relay consists of a microphone C, Fig. 25, formed of the two pieces of osmium iridium alloy. The ore of osmium and iridium can be decomposed, and the former recognized by its fetid odor. When pure, platinum is as soft as silver, but by the addition of iridium it becomes the hardest of metals. In the top of the cap is a sapphire bearing, which rests on an iridium point projecting upward from the compass bowl. Iridium occurs in nature associated with osmium, gold, and platinum, in the mines of Russia. Iridium sulphide, IRS, is obtained when the metal is ignited in sulphur vapour. Find more words! 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Use our Sentence Generator Nearby Words iridian iridescently iridescent iridescence irides iridectomy iridocyclitis iridologists iridology iridotomy irie Irina 7-letter Words Starting With i ir iri irid iridi iridiu