The thin covering is composed of alternating layers of silicon dioxide and tantalum pentoxide. |
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High voltage and low amperage were used to increase the contrast between the dense tantalum markers and the bone. |
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The materials all include oxygen, and one, for example, also contains niobium, tantalum, and zirconium. |
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A previous study of the columbite-tantalite series minerals indicated a similar change for tin, tantalum, niobium, and manganese. |
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A second element, tantalum, is always present in these minerals along with niobium. |
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This resource is potentially globally significant as a source of niobium and tantalum. |
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Sodium is also used as a chemical reducing agent in producing titanium, zirconium, niobium, and tantalum from their fused salts. |
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Because of the high solubilities in niobium and tantalum, these embrittling contaminants normally do not present problems in fabrication. |
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The refractory metals include niobium, tantalum, molybdenum, tungsten, and rhenium. |
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The metal can be, for example, titanium, tantalum, chromium, aluminium or tungsten. |
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His recovery of the rare and vital ores of tantalum, lithium, and beryllium greatly aided the War Production Board. |
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Magnesium, titanium, zirconium, niobium, tantalum, molybdenum and tungsten may be soldered if they are plated with a solderable metal coating such as silver. |
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However, titanium, niobium, and tantalum can influence mechanical properties still further by encouraging the formation of other similar types of precipitates. |
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Suitable materials include tantalum, yttria-coated graphite, graphite coated with other rare earth oxides or mixtures thereof. |
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Tungsten, tantalum, tin and gold are used to produce many common consumer electronics devices. |
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In China, for example, tungsten, tantalum, tin and gold are mined and ore is imported from other countries. |
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In the case of indium, gallium and tantalum it is their unique electrical properties that are of interest. |
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Gold, diamonds, copper, cobalt and rare metals like cadmium, niobium, tantalum and others are coveted. |
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By the early 21st century Mozambique had become the world's largest extractor of tantalum and Brazil the largest producer of niobium. |
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Deposits of iron, copper, zinc, lead, niobium, tantalum, and some bauxites have been detected, too. |
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In 1994, the tantalum market remained oversupplied, which kept prices down. |
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Australia's production of tantalum is from both the mining of tantalite deposits and the processing of tin slags. |
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They are also available, however, in titanium, tantalum or hastelloy on request. |
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Hastelloy or tantalum plug inserts, which were previously used for stability and accuracy reasons, can now be dispensed with. |
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Ferrous-metal mines produce primarily iron and metals, such as niobium and tantalum, that are alloyed with steel. |
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With the cell phone industry booming, the park's resources and wildlife are under massive strain from miners seeking colombo-tantalite, also known as coltan or tantalum. |
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In 2012, intel began producing microprocessors with conflict-free tantalum, a sign that conflict-free efforts were progressing. |
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The chemical and nuclear industries exploit tantalum as the primary material for the production of industrial equipment. |
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Because of its use in the computer and communication technology, the world-wide demand for tantalum has enormously accelerated. |
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With the economic revival in the information technology industry, there is fear that the demand for tantalum will rise again very soon, leading to increased pressure on DRC resources. |
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Since tantalum metal has a lower resistivity than carbon, the tantalum lamp filament was quite long and required multiple internal supports. |
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Refractory metals such as tantalum and tungsten along with the more stable oxides, borides, carbides, nitrides and silicides can tolerate this. |
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In Estonia plasmochemical production of niobium and tantalum is using an environmentally friendly technology. |
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A method of manufacturing perovskite lead scandium tantalate comprising heating scandium oxide and tantalum oxide to form scandium tantalate and heating the scandium tantalate in the presence of lead. |
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At least two tantalum-manufacturing companies, Kemet and Cabot Corporation, have asked their suppliers to certify that their tantalum does not originate in the eastern Democratic Republic of Congo. |
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These collector assemblies are made of or protected by materials resistant to the heat and corrosion of uranium metal vapor, such as yttria-coated graphite or tantalum. |
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Mobile phones and computers use copper for their wiring and rely on cobalt, germanium, lithium, nickel, platinum and tantalum for other components. |
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For the purpose of this entry, transition metals are: scandium, vanadium, manganese, cobalt, copper, yttrium, niobium, hafnium, tungsten, titanium, chromium, iron, nickel, zinc, zirconium, molybdenum and tantalum. |
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In 1844 a German chemist, Heinrich Rose, discovered what he considered to be a new element occurring along with tantalum and named it niobium after Niobe, the mythological goddess who was the daughter of Tantalus. |
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Because of production overcapacity, prices for tantalum concentrates and intermediate products are expected to remain weak for the foreseeable future. |
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But it would be limited to gold, tin, tungsten and tantalum. |
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For example, the cost of producing the metal powders suitable for use in 3D printing, titanium and tantalum, are rapidly falling, enabling the use of high-value metals in consumer products. |
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Intel has examined the possibility of replacing silicon oxide transistor gates with thinner ones made of oxides of aluminium, titanium or tantalum. |
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Niobium and tantalum are expected to play an increasingly large role due to their unique properties and the fact that they are considered to be strategic metals by various governments, particularly the United States. |
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In the making of a mobile phone for instance, 40 different raw materials are used, like lithium, tantalum, cobalt and antimony, all of them more and more difficult to get. |
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Motorola rarely purchases components containing tantalum. |
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Gravity Separation: Minerals can be separated on the basis of differences in density, particularly for iron ore and gold, as well as tungsten, tantalum and niobium. |
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In 2012, there were scarcely new tantalum ore projects being put into production. |
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The rats with embedded tantalum didn't develop any malignancy and lived for a year. |
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At full capacity, Galaxy will process 137,000 tpa of spodumene concentrate and 56,000 lbs per annum of contained tantalum. |
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From its assigned position in the periodic table, hahnium ought to behave like its stable neighbor tantalum. |
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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 1902, the Siemens company developed a tantalum lamp filament. |
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The study also forecasts primary and secondary tantalum supply. |
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The mass absorption coefficients of tungsten and tantalum were measured with soft x-ray photons from 1450 eV to 2350 eV using an undulator source. |
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Additionally, tin and tantalum mineralisation, in quartz and pegmatite veins within a granodiorite host, has been identified by on-site geologists in a number of samples. |
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The granites are highly enriched in lithium, boron, caesium and uranium and moderately so in fluorine, gallium, germanium, rubidium, tin, tantalum, tungsten and thallium. |
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By housing Weyl fermions, tantalum arsenide becomes the first experimentally confirmed Weyl semimetal, a metal-like material with exotic and potentially useful features. |
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Whereas the tantalum pellets in the low-dose group were surrounded by normal tissue, all of the tungsten alloy and nickel pellets were surrounded by tumors. |
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Tantalum is a very hard, malleable, ductile metal with a silvery bluish color when unpolished, but a bright silvery color when polished. |
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Tantalum is mainly used in the electronics industry in the manufacture of capacitors, used in electronic gadgets like cell phones. |
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Tantalum helps you send text messages, tin is the solder on every circuit board and gold is the little connecting piece. |
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Tantalum is used for sutures, and steel in artificial hip joints. |
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Tantalum is used in products as diverse as metal blades and bone implants. |
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Tantalum and niobium are contained in the minerals ferrocolumbite and pyrochlore. |
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