The,discovery,and,use,titanium business, insurance The discovery and use of titanium
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He advocated naming in the method ofuranium, citing Greecemythology Titan "Titanic" called the new element"Titanium". The discoveredtitanium at that time is the titanium dioxide powder, instead of titanium metal powder. Titanium oxide is extremely stable, and titanium can directlycombine with oxygen, nitrogen, hydrogen, carbon and so on, so elementaltitanium is hard to be prepared. Until 1910, United States chemist was first toprepare 99.9% pure titanium. Titaniumhas metal luster, ductility. The melting point is 1660 ± 10, boilingpoint is 3287. Valence has + 2, +3 and+4. Ionization energy is 6.82 keV. The main feature of titanium is density,high mechanical strength, easy processing. The plasticity of titanium is mainlydepending on the purity, the more pure, the larger plasticity. With goodcorrosion resistance, can not be influenced by air and water. At roomtemperature, can not corrode by dilute hydrochloric acid, rare sulphuric acid,nitric acid and dilute alkali solution; only hydrofluoric acid, hotconcentrated hydrochloric acid, concentrated sulfuric acid can react with it. Titaniumbelonging to the precious metal, the abundance in the Earth's crust is seventh,accounted for 0.42%, minerals used for smelting titanium are mainly havingilmenite (FeTiO3), rutile (TiO2) and perovskite. Ore through treated can be obtained volatiletitanium tetrachloride, with magnesium restore to get the pure titanium.Titanium with strong strength, the tensile strength of pure titanium was up to180kgmm2. Some steels' strength were higher than titanium alloy, buttitanium alloy special strength (the ratio of tensile strength and density) isexceeding high quality stainless steel. Titanium has good heat intensity,low-temperature toughness and fracture toughness, so mainly used for aircraftengines parts and rockets, missiles structure. Titanium alloys can be used forfuel and oxidizer tank and pressure vessel. Now it has been used titanium alloyto manufacture automatic rifles, mortars and the launching tube of recoillesscannons. In oil industry principally for containers, reactors, distillationtowers, heat exchangers, piping, pumps and valves, etc. Titaniumcan be used as condensers of electrodes and power stations as well asenvironmental pollution control devices. Nickel-titanium shape memory alloys onthe instrument had been widely applied. In medicine, titanium can bemanufacturing artificial bones and various appliances. Titanium is also thedeoxidizers of steel-making and the component of stainless steel and alloysteel. Titanium dioxide is good raw materials for paints. Titanium carbide,carbon-titanium hydride is a new type alloy material. The color of titaniumnitride is closed to the gold, widely used in decoration. Titanium powder and titanium alloy widely used in the aerospace industry, are knownas the space metal; in addition, in the shipbuilding industry, chemicalindustry, manufacturing mechanical parts, telecommunications equipment, hardalloy and other aspects has an increasingly wide range of applications. Inaddition, since titanium alloy also has excellent compatibility with the humanbody, which is why titanium alloy can be artificial bone. ArticleSource:http://www.mhcmp.com
The,discovery,and,use,titanium