| Its melting and boiling points are third highest among all elements after tungsten and rhenium. |
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| The present invention relates to a heterogenic rhenium containing catalyst suited particularly to the metathetic reactions of hydrocarbons. |
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| Finally, a relatively small amount of rhenium is used to make catalysts for the petroleum industry. |
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| The refractory metals include niobium, tantalum, molybdenum, tungsten, and rhenium. |
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| Those that do not, such as technetium and americium, have been substituted, respectively, by rhenium and neodymium, which have similar traits. |
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| General Electric, one of the world's biggest makers of jet engines, has spent years developing nickel-based superalloys to replace rhenium. |
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| Copper ore, for instance, often contains molybdenum, rhenium, selenium, tellurium, along with small amounts of rare-earth elements. |
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| It uses neural network modelling to predict the impact very expensive additives such as rhenium and platinum might have on the heat resistance of superalloys. |
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| Similar carbonyls are formed by technetium's congeners, manganese and rhenium. |
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| In processes such as the dehydrogenation of isopropyl alcohol, it is a far more effective catalyst than either rhenium or palladium. |
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| In principle, aircraft do not need rhenium to stay aloft. |
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| Only carbon and tungsten have higher melting points than rhenium. |
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| Second, like many metals, rhenium occurs naturally in specific pockets. |
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| Prof. Sapritsky noted that the VNIIOFI has developed promising new blackbody sources based on the eutectic materials, iridium and rhenium carbides. |
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| Her PhD research was design, synthesis, chemical and structural characterization of rhenium and technetium complexes for the development of diagnostic and therapeutic agents in nuclear medicine. |
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| The chemical properties of this silvery gray, crystalline transition metal are intermediate between rhenium and manganese. |
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| Technetium is located in the seventh group of the periodic table, between rhenium and manganese. |
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| Of the two, technetium more closely resembles rhenium, particularly in its chemical inertness and tendency to form covalent bonds. |
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| The region is one of the leading producers of iron ore, copper, niobium, lithium and rhenium in the world. |
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| 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. |
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| These alloys found important applications in industry that resulted in a great demand for the rhenium produced from the molybdenite fraction of porphyry copper ores. |
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| Like rhenium and palladium, technetium can serve as a catalyst. |
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| This book addresses the development of OLEDs based on rare-earth and transition metal complexes, especially focusing on europium, terbium, ruthenium, and rhenium. |
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| The samples, which are stored in special containers made from ceramic and rhenium, are fed into the process chamber in a similar arrangement to the magazine of a revolver. |
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| For materials that have high melting points such as molybdenum, tungsten, rhenium, tantalum, osmium and carbon, sintering is one of the few viable manufacturing processes. |
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| In order to aim the X rays at the correct angle, they replaced the usual sample holder made of rhenium with one made of beryllium, through which X rays can pass. |
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| Rhenium is not attacked by molten copper, silver, tin, or zinc. |
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