Tag: tantalum

How Much E-waste Do You Throw Out Every Year?

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Can you imagine 80 kilograms of discarded products with batteries or plugs piling up in your living room? That’s how much e-waste the average American household throws away each year. The latest data from the 2017 global e-waste monitor report, released by the United Nations University (UNU), the International Telecommunication Union, and the International Solid […]

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How Can An iPhone Vibrate Without Tungsten?

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If tungsten runs out and only a short mining life remains, what will support the vibration of the iPhone? “A perfect storm may be brewing because supply is shrinking fast”, says a professor of sustainability at the Rochester Institute of Technology. So, what is this storm about? And what supply is about to “shrink”? Why […]

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What Refractory Metals are commonly used in Vacuum Systems?

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Refractory metal refers to the metals with a certain reserve and the melting point of which is higher than 1650 ℃. Refractory metals include tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium and titanium. Rhenium also has a high melting point, but its reserves are too small, and most of it is used in high-temperature […]

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How Much Do You Know About Tantalum Niobium?

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The atomic sequences of tantalum (Ta) and niobium (Nb) are 73 and 41 respectively, both of which are located in the area of the excessive element of VB. They are often symbiotic in nature and are important refractory metals. They have many excellent properties, such as high melting point, high boiling point, low vapor pressure, […]

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What Are the Uses of Tantalum And Its Alloys?

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The tolerance of tantalum to interstitial elements and reasonable elastic modulus make it an attractive base element of the alloy. Tantalum is also easy to achieve the inert gas tungsten arc welding (GTA), so it is suitable for the manufacture of various chemical equipment to give play to its corrosion resistance, such as various heat exchangers, […]

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Why Tantalum is Important

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Tantalum occurs in columbium ores. As the demand for columbium increases, increasing amounts of tantalum concentrates become available. After a difficult and complex separation and reduction process, both metals are obtained in the form of powder. The powder is pressed in dies to form bars which are vacuum sintered by passing high currents through them […]

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The List of Abundant Refractory Metals

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Tungsten, tantalum, molybdenum, columbium, vanadium, and chromium may be classed as relatively abundant refractory metals; that is, Free World reserves of contained metal are over 100,000 tons for each metal. The first four show promise in a considerably higher temperature range than the last two, and sometimes the term “refractory metals” is used narrowly to […]

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The Metal that doesn’t Fear Aqua Regia—Tantalum

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Corrosion is the damage or qualitative change of material under the influence of the environment. The corrosion of metal and alloy is mainly caused by chemical or electrochemical damage. Common corrosion-resistant metals are austenitic stainless steel, Hastelloy, Monel alloy, titanium and titanium alloy, platinum, gold, rhodium and other precious metals. Few people know that the […]

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Which Elements Have the Highest Melting Point

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As we all know, melting point is the temperature at which substance converts from solid state to liquid state. Some of the metals show very high melting points at least 2,000 degrees Celsius, and they also have very high physical strength. These metals are named as refractory metals. Niobium, molybdenum, tantalum, tungsten and rhenium are […]

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