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What Happens if Rhenium Is Alloyed to Niobium, Tungsten, and Tantalum?

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Rhenium is added to high-temperature superalloys that are used to make jet engine parts, using 70% of the worldwide rhenium production. Another major application is in platinum–rhenium catalysts, which are primarily used in making lead-free, high-octane gasoline. Nickel-based superalloys have improved creep resistance with the addition of rhenium. Alloys normally contain 3% or 6% rhenium. […]

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Hafnium Oxide And Its Structure & Applications

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Hafnium Oxide and Its Structure And Applications  Hafnium oxide is the inorganic compound of formula HfO2. Also known as hafnia, this colorless solid is one of the most common and stable compounds of hafnium. It is an electrical isolator with a bandgap of 5.3 ~ 5.7 eV. Hafnium dioxide is an intermediate in some processes […]

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Applications of Titanium Alloy in Automobile Industry

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Applications of Titanium Alloy in Automobile Industry Titanium has the advantages of low density, high specific strength, and good corrosion resistance. Titanium used in automobiles can greatly reduce the quality of the body, reduce fuel consumption, improve the working efficiency of the engine, improve the environment and reduce the noise. However, the expensive price of […]

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Why Is Zirconium A Transition Metal?

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Why Is Zirconium A Transition Metal? When of sufficient purity, zirconium is soft and ductile. It has good corrosion resistance and low absorption capacity for thermal neutrons. These properties are desirable in materials used for certain parts of nuclear reactors. The great increase in the production of zirconium since 1945 has been the direct result […]

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What Hafnium Is Used For?

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What Hafnium Is Used For? Hafnium occurs in zirconium ores. Because this metal must be removed from “reactor-grade” zirconium, the production of hafnium is largely dependent on zirconium production, as discussed later. Its melting point is 4032 F. However, it has not been available in sufficiently large quantities to have any extensive elevated-temperature applications other […]

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Why Platinum Is The Most Expensive Metal?

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Why Platinum Is The Most Expensive Metal? The platinum-group metals can be described as refractory metals because of their high melting points. This group comprises platinum, osmium, iridium, ruthenium, rhodium and palladium, i. e., metals which have properties similar to those of platinum. The metals in this group are quite scarce and expensive, such as […]

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What Can Rhenium Be Used For?

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What Can Rhenium Be Used For? Rhenium is classified as a scarce refractory metal. It has the second-highest melting point of any of the metals and has a relatively high density. Rhenium is produced as a powder from molybdenite, which also contains rhenium sulfide. The rhenium powder is consolidated by pressing and resistance sintering in […]

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How Chromium Works?

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How Chromium Works? In this article, we will take a look at how chromium works. The melting point of chromium is the lowest of the abundant refractory metals, but it is more than 700 degrees above that of iron. The density of chromium is slightly less than that of iron. At elevated temperatures, it acquires […]

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Why Is Vanadium A Transition Metal?

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Why Is Vanadium A Transition Metal? The melting point of vanadium is about 1000 degrees lower than that of columbium, so there is much less interest in vanadium for high-temperature applications than in the abundant refractory metals. Pure vanadium has only recently become available in quantities large enough for thorough studies of its physical and […]

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What Is Niobium Used For In Everyday Life?

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What is niobium used for in everyday life? Niobium has a melting point of 4474 F, which is 256 degrees lower than that of molybdenum. The development of niobium metal and its alloys for elevated-temperature structural applications was started only a few years ago, but considerable progress has been made since then. One factor that has been […]

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