• Niobium is used mostly in alloys, the largest part in special steel such as that used in gas pipelines. (wikipedia.org)
  • Although these alloys contain a maximum of 0.1%, the small percentage of niobium enhances the strength of the steel. (wikipedia.org)
  • This paper provides some insight into an area that has been neglected, namely the possibility of developing high-strength, niobium-base alloys by improved oxidation resistance via the consolidation of rapidly solidified powders. (springer.com)
  • Previous work on many niobium alloys reveals that long term properties are retained well above those obtained on nickel-base superalloys. (springer.com)
  • R.C. Svedberg, "Oxides Associated with Improved Air Oxidation Performance of Some Niobium Intermetallics and Alloys," Properties of High Temperature Alloys , ed. (springer.com)
  • Niobium and Niobium Alloys in Nuclear Power, Nuclear Engineering and Design , North Holland Publishing 32 (1972), pp. 95-123. (springer.com)
  • Niobium in Steels and Alloys , English Translation by CBMM Sao Paulo (1984), p. 334. (springer.com)
  • R.C. Svedberg and R.L. Ammon, "Development of Oxidation Resistant Niobium Base Alloys Using Powder Metallurgy Techniques," Navair Report WAESD-TR-84-0022 (June 1984). (springer.com)
  • A coating formulation is described in which includes a solvent, a binder, and a metal additive comprising tantalum, niobium, alloys thereof, or mixtures thereof. (google.ca)
  • Also described is a cellulose-based substrate which contains a cellulose-based reinforcing agent, a binder, and a metal additive comprising tantalum, niobium, alloys thereof, or mixtures thereof. (google.ca)
  • Also described is a cement-based or plaster-based substrate containing a cement-based or plaster-based material and a metal additive comprising tantalum, niobium, alloys thereof, or mixtures thereof. (google.ca)
  • Commercial Applications and other Benefits as described by the awardee: In addition to the ILC application, electrochemical polishing and machining processes for passive materials such as niobium, titanium, nickel-based alloys, and stainless steels that utilize environmentally friendly electrolytes should have wide applications in a variety of industries, including aerospace, medical, and automotive. (sbir.gov)
  • Niobium is found in niobite and used in alloys. (3rd1000.com)
  • Aggarwal notes that other researchers have developed techniques for processing niobium via powder metallurgy and some have applied powder injection molding to niobium-based alloys and superalloys. (phys.org)
  • Niobium, Nb, is used in alloys for improved strength. (galleries.com)
  • Niobium and its alloys have high melting points and are, therefore, used in high temperature engineering products (for use at temperatures in excess of 1200C). (goodfellow.com)
  • Niobium is a chemical element that is used to make metal alloys, particularly high-strength steel. (hydrogenfuelnews.com)
  • The thermotransport and diffusion of carbon in vanadium and V-Ti alloys, and the effects of divanadium and diniobium carbide particles on the thermotransport of carbon in vanadium and niobium were investigated. (iastate.edu)
  • Eagle Alloys Corporation (EAC) is the leading global supplier of Niobium tubing and pipe. (eaglealloys.com)
  • Eagle Alloys Corporation can supply Niobium tubing and pipe from 0.039" OD up to 6.500" OD and 20 foot long. (eaglealloys.com)
  • In addition to commercially pure Niobium EAC also supplies Reactor Grade Niobium, Niobium Zirconium Alloys, Niobium Hafnium Alloy, Niobium Tungsten Alloy, Niobium Titanium Alloy. (eaglealloys.com)
  • Fabrication and characterization of specimens comprising niobium oxide and alumina composites of various compositions was performed. (unt.edu)
  • Unlike many other metals, tantalum and niobium are sourced from two main ores: tantalite in the case of tantalum, and pyrochlore for niobium. (mining-technology.com)
  • This confusion arose because tantalum and niobium are similar metals, are always found together and are very difficult to isolate. (3rd1000.com)
  • Niobium has a number of uses: it is a component of some stainless steels and an alloy of other nonferrous metals. (3rd1000.com)
  • For many years, it has been the goal of various researchers to develop niobium electrolytic capacitors because of the high di-electric constant of its oxide and the relatively low cost of niobium compared to a variety of other metals. (patent-de.com)
  • Niobium will react with a variety of non-metals at elevated temperatures. (goodfellow.com)
  • Commented Michael Stares, President and CEO of Rare Earth Metals, "We are very pleased with these initial results which suggest that the central Coldwell Complex has potential for significant Rare Earth Element and Niobium mineralization. (marketwired.com)
  • Globe Metals and Mining Limited, the Australian based company that is set to mine Niobium at Kanyika in Malawi's northern district of Mzimba in 2015, says its major commercial consideration is customers for this rare metal. (nyasatimes.com)
  • The company said the fact that Niobium is not listed on the London Metals Exchange is a huge challenge since the company has to scout for buyers on its own. (nyasatimes.com)
  • We will be looking for one or two cornerstone steel mills, probably in China to provide Ferro-niobium off take agreements," Globe Metals and Mining Limited Managing Director Mark Sumich said. (nyasatimes.com)
  • Globe Metals and Mining Limited said the increasing sophistication of developing nations such as China and India is driving growth in niobium, in excess of steel growth, as these countries' demand for sophisticated steels increases. (nyasatimes.com)
  • Zirconium carbide and niobium carbide can be used as refractory coatings in nuclear reactors. (alfa.com)
  • Extraction and Separation of Zirconium and Niobium with. (srce.hr)
  • on separation of niobium and zirconium is discussed. (srce.hr)
  • Niobium also finds applications in atomic reactors due to its corrosion resistance and, when combined with either tin (Nb 3 Sn) or zirconium, it has a high degree of superconductivity. (goodfellow.com)
  • This market research report examines the foreign trade of Japan and its perspectives on the global market for niobium tantalum vanadium zirconium ores, concentrates. (marketpublishers.com)
  • The report will be of considerable interest primarily to relevant strategic planners, senior company officials and importers/exporters, since it features invaluable information on niobium tantalum vanadium zirconium ores, concentrates export/import operations in Japan. (marketpublishers.com)
  • The report studies how Japan behaves on the global market for niobium tantalum vanadium zirconium ores, concentrates. (marketpublishers.com)
  • It also assesses the dynamics of country's foreign trade in niobium tantalum vanadium zirconium ores, concentrates in 2006-2016. (marketpublishers.com)
  • The report indicates major suppliers and consumers of niobium tantalum vanadium zirconium ores, concentrates in Japan. (marketpublishers.com)
  • The final chapter provides in-depth analysis of prospects for the country's foreign trade in niobium tantalum vanadium zirconium ores, concentrates, as well the forecast for the development of the market for niobium tantalum vanadium zirconium ores, concentrates up to 2021. (marketpublishers.com)
  • We present average price forecast for niobium tantalum vanadium zirconium ores, concentrates. (marketpublishers.com)
  • This report examines international trade and worldwide market trends pertaining to niobium tantalum vanadium zirconium ores, concentrates. (marketpublishers.com)
  • The report provides the following analytical materials on the niobium tantalum vanadium zirconium ores, concentrates: general description, international trade dynamics (2012-2017), exports/imports (2017) broken down by country, major suppliers and consumers, average price. (marketpublishers.com)
  • Microalloyed steels are defined as steels containing niobium, vanadium and titanium in amounts between 0.05% and 0.20% by wt. (mdpi.com)
  • Ti, and decreases to 94.6 kJ/mol in (beta)-Ti;Carbon thermotransport in niobium, as in vanadium, is toward the hotter regions, however, the direction of net carbon flux reverses when these samples are in a two-phase condition. (iastate.edu)
  • This dissertation addresses atomic-level structure and related properties of the (100) surfaces of Vanadium and Niobium. (utexas.edu)
  • Magnesium vapor reduction of niobium pentoxide was studied using a laboratory system. (hindawi.com)
  • The underground mine started commercial production of niobium pentoxide in 1976. (mining-technology.com)
  • The Niobec mine comprises of a headframe, a niobium pentoxide (Nb2O5) concentrator, a concentrate-to-ferroniobium converter, and ancillary surface installations. (mining-technology.com)
  • The extracted pyrochlore concentrate contains 58% of niobium pentoxide. (mining-technology.com)
  • In 2009, the mine's niobium mineral was increased by 32%, to 181.3mkg (199,849t) of niobium pentoxide. (mining-technology.com)
  • Synergic antimony-niobium pentoxide nanomeshes are fabricated on a large scale via the controllable decomposition of SbNbO 4 nanosheets, which are obtained from ultrathin hydrated niobium oxide (Nb 2 O 5 · n H 2 O) layers. (rsc.org)
  • Meanwhile, demand for specialist steels, which make up the largest proportion of annual niobium production, has also been reduced, although the impact on the world's leading producers has been much less dramatic. (mining-technology.com)
  • By far the greatest part of world niobium production ends up in high-strength, low-alloy and stainless steels. (mining-technology.com)
  • According to literature, niobium has a great influence in the transformation phase of austenitic-ferritic stainless steels. (scielo.br)
  • In a 20-minute video, he lauded the virtues of niobium, such as its use as an alloying element in steels and in high-tech applications, such as electric car batteries, optical lenses, particle accelerators, orthopedic implants, and jet engines. (fapesp.br)
  • About 90% of niobium is used as an additive to create high quality steels, demand for niobium is linked directly to growing steel markets. (nyasatimes.com)
  • Brazil is the leading producer of niobium and ferroniobium, an alloy of 60-70% niobium with iron. (wikipedia.org)
  • Stuart explains that CBMM does not sell the raw ore but products made from it-its flagship product being ferroniobium (FeNb), a metallic alloy composed of 65% niobium and 35% iron, used in the steel industry. (fapesp.br)
  • Appreciable amounts of niobium in the form of high-purity ferroniobium and nickel niobium are used in nickel-, cobalt-, and iron-base superalloys for such applications as jet engine components, rocket subassemblies, and heat-resisting and combustion equipment. (3rd1000.com)
  • The niobium concentrate is converted into ferroniobium with the help of an aluminothermic reaction in batch processing. (mining-technology.com)
  • Now, by fully utilizing its technologies and development resources, Toshiba is advancing the development of higher energy density batteries with titanium niobium oxide anodes for use in electric vehicles. (greencarcongress.com)
  • Niobium is suitable for most customers with metal sensitivities. (riogrande.com)
  • Niobium is naturally hypoallergenic, making this ear wire especially suited for customers with metal sensitivities. (riogrande.com)
  • High purity Niobium sample for collectors & display. (unitednuclear.com)
  • We smelt the high purity Nb2O5 we sourcing from the Chinese biggest hydrometallurgy plant by means of aluminothermic reduction to produce niobium aluminum alloy. (tantalumniobium.com)
  • Then the niobium aluminum alloy will be smelted in high Vacuum EB furnace to produce niobium bars with Nb content 99.9% up, which will be smelted again in high Vacuum EB furnace to be purified and produce Niobium ingots with purity 99.95% up. (tantalumniobium.com)
  • This minority phase, comprising approximately 98% niobium and 2% boron, is what behaves as a superconductor. (eurekalert.org)
  • De Marignac was the first to prepare the metal in 1864, when he reduced niobium chloride by heating it in an atmosphere of hydrogen. (wikipedia.org)
  • Metallic niobium was finally isolated by the Swedish chemist Christian Wilhelm Blomstrand in 1864 by reducing niobium chloride by heating it in a hydrogen atmosphere. (3rd1000.com)
  • Kinetics of crack propagation in hydrogen charged niobium were studied in the temperature range 77 to 303 K and for hydrogen concentrations between 0.068 and 3.2 at. (illinois.edu)
  • Home Materials Science Forum Positron Annihilation - ICPA-13 Hydrogen-Induced Defects in Niobium Studied by. (scientific.net)
  • Closely related to the surface relaxation issue for Nb(100) are experiments that provide an experimentallydetermined structural basis for the "sub-surface valve" model that has been proposed to explain the novel hydrogen uptake kinetics in Niobium. (utexas.edu)
  • Bibitem{LakKal65} \by V.~I.~Lakomskii, N.~N.~Kalinyuk \paper Solubility of hydrogen in liquid niobium \jour Dokl. (mathnet.ru)
  • Brazil is the largest producer of niobium in the world, holding about 98% of the globe's active reserves. (hydrogenfuelnews.com)
  • Indeed, until the discovery of the world's pyrochlore deposits in the 1950s, niobium was a by-product of tantalum mining, with increasing demand ensuring that it was highly valued and highly priced. (mining-technology.com)
  • It is one of the major sources of niobium in the world and North America's only source of pyrochlore. (mining-technology.com)
  • The temperature stability of niobium-containing superalloys is important for its use in jet and rocket engines. (wikipedia.org)
  • The Global Niobium Nitride Powder Industry 2016-2021 Market Research Report' is analytical reports based on a current situation and trends of the global as well as Chinese market. (mynewsdesk.com)
  • The global Niobium Nitride Powder market report will provide significant and reliable information on the market clearly in structured format. (mynewsdesk.com)
  • Report will easily mold information as per client requirement which covers forecast and analysis of Niobium Nitride Powder market on global and regional level.We generate reports on market variations across verticals like energy, chemicals, technology, food, electronics and others. (mynewsdesk.com)
  • The report includes key competitors in global Niobium Nitride Powder market. (mynewsdesk.com)
  • Titanium niobium nitride coating (TiNbN) acts like a physical barrier against the corrosion process and the metallic ions release towards the surrounding biologic environment, thus, making TiNbN-coated prostheses possible to be safety implanted in metal sensitized patients. (clinicaltrials.gov)
  • To the best of our knowledge the chemical, physical and toxicological properties of niobium nitride have not been thoroughly investigated and recorded. (espimetals.com)
  • Three-dimensional mesoporous titanium (TiN) and niobium nitride (NbN) thin films were prepared using block copolymer self-assembly and were evaluated without using any conductive carbon additives or a carbon-based substrate. (rsc.org)
  • He recorded the video in 2016 at the site of the largest niobium mine in the world near the city of Araxá, which is 360 kilometers from Belo Horizonte, Minas Gerais, in southeastern Brazil. (fapesp.br)
  • The "CBMM - Araxa Niobium Production Plant Expansion - Minas Gerais - Construction Project Profile" contains information on the scope of the project including project overview and location. (marketresearch.com)
  • The "CBMM - Araxa Niobium Production Plant Expansion - Minas Gerais - Construction Project Profile" is part of World Market Intelligence's database of 25,000+ construction projects. (marketresearch.com)
  • World Market Intelligence's "CBMM - Araxa Niobium Production Plant Expansion - Minas Gerais - Construction Project Profile" is a crucial resource for industry executives and anyone looking to access key information about the CBMM - Araxa Niobium Production Plant Expansion - Minas Gerais construction project. (marketresearch.com)
  • World Market Intelligence's "CBMM - Araxa Niobium Production Plant Expansion - Minas Gerais - Construction Project Profile" report utilizes a wide range of primary and secondary sources, which are analyzed and presented in a consistent and easily accessible format. (marketresearch.com)
  • Niobium oxidizes in the earth's atmosphere very slowly, hence its application in jewelry as a hypoallergenic alternative to nickel. (wikipedia.org)
  • An iron-based high-silicon alloy contains (in weight percent) 2.6-3.5% carbon, 3.7-4.9% silicon, 0.45-1.0% niobium, up to 0.6% manganese, up to 0.02% sulfur, up to 0.02% phosphorus, up to 0.5% nickel, up to 1.0% chromium, up to 0.1% magnesium, and the balance iron and up to 0.2% of other elements. (freepatentsonline.com)
  • Tantalite contains some niobium, with the mineral being referred to as niobite or columbite when the niobium content is greater than that of tantalum. (mining-technology.com)
  • Essentially mixed tantalite and columbite (the name stemming from the previous use of 'columbium' for niobium), the principal sources are found in pegmatite ore bodies in countries such as the Democratic Republic of Congo, Rwanda, Burundi and other central African countries. (mining-technology.com)
  • Niobium was rediscovered and renamed by Heinrich Rose in 1844 when he produced two new acids, niobic acid and pelopic acid, from samples of columbite and tantalite. (3rd1000.com)
  • Niobium was discovered in a variety of columbite (now called niobite) and was at first named after this mineral. (3rd1000.com)
  • Tantalite is the more tantalum rich end member and columbite is the more niobium rich end member. (galleries.com)
  • Niobium had been called columbium hence the name columbite. (galleries.com)
  • Columbite is the most widespread niobium mineral and makes for an important ore of the industrially useful metal. (galleries.com)
  • Niobium had previously been called columbium hence the name columbite. (galleries.com)
  • The official name was made niobium in the 1950's after a century of debate, although some groups still do not recognize the official name and still refer to it as columbite. (galleries.com)
  • Pure niobium has a Mohs hardness rating similar to that of pure titanium, and it has similar ductility to iron. (wikipedia.org)
  • The superconducting properties were associated with filaments of almost pure niobium that "meandered around" the grains of NbB in the samples studied. (eurekalert.org)
  • Penn State researchers have developed the first powder injection molding process for pure niobium, a biocompatible material similar to platinum and titanium but cheaper. (phys.org)
  • However, the Penn State team is the first to explore processing pure niobium via powder injection molding. (phys.org)
  • Aggarwal points out that pure niobium products are currently formed from powders and, therefore, there is no powder cost penalty as in ferrous materials, for example. (phys.org)
  • Optical glass grade niobium oxide has 99.99(Nb2O5), and impurities is the least. (worldbid.com)
  • The two mines combined account for 82% of global niobium production or approximately 120,000 metric tons (t) per year, with CBMM producing 90,000 t and CMOC producing approximately 9,000 t. (fapesp.br)
  • The Global Niobium market is expected to grow at a CAGR of 8.0% from 2018 to 2026. (researchandmarkets.com)
  • Global niobium based alloy buyers find suppliers here every day. (ec21.com)
  • In this report, the global Niobium Metal market is valued at USD XX million in 2016 and is expected to reach USD XX million by the end of 2022, growing at a CAGR of XX% between 2016 and 2022. (reportsnreports.com)
  • Only 8% of steel products contain niobium, suggesting there is substantial room to grow this market. (fapesp.br)
  • Minerals that contain niobium often also contain tantalum. (3rd1000.com)
  • S. Schider, "Titanium Oxide Strengthened P/M Niobium for High Temperature Applications," Presented at 11th International Plansee Seminar, Reutte, Austria (May 1985). (springer.com)
  • The present final report describes technical progress made in regards to evaluating niobium oxide/alumina as a high temperature seal material. (unt.edu)
  • DLi) with pulsed field gradient NMR demonstrates room temperature DLi values of 10-12-10-13 m 2 × s -1 in the niobium tungsten oxides, which is several orders-ofmagnitude faster than typical electrode materials and corresponds to a characteristic diffusion length of ~10 µm for a 1 minute discharge. (osti.gov)
  • They have developed a method to calculate the optimal proportions of niobium powder to binder in feedstocks as well as the appropriate temperature and duration for sintering. (phys.org)
  • Designed with users in mind, new SpiCAT simulation software offers access to two separate portals - SpiMLCC and SpiTAN, which supersede SpiCap III and SpiTan IV - that provide electrical and performance characteristics by frequency and temperature for an extensive range of multilayer ceramic or tantalum, polymer, and niobium oxide surface-mount capacitors. (globenewswire.com)
  • To produce Niobium plate/foil/tube/wire and other process various niobium mill products which are widely applied for pharmacy, semiconductor, aviation and aerospace, nuclear, high temperature assemblies and other fields. (tantalumniobium.com)
  • Wang, Zhizhang, The effect of cooling rate and coiling temperature on the niobium retention in ultrathin castrip steel, Master of Engineering Materials thesis, School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, 2016. (edu.au)
  • Niobium is less corrosion-resistant than tantalum at high temperature. (eaglealloys.com)
  • Niobium is unaffected at room temperature by most acids. (eaglealloys.com)
  • Niobium, also known as columbium, is a chemical element with the symbol Nb (formerly Cb) and atomic number 41. (wikipedia.org)
  • In 1864 and 1865, a series of scientific findings clarified that niobium and columbium were the same element (as distinguished from tantalum), and for a century both names were used interchangeably. (wikipedia.org)
  • Niobium was officially adopted as the name of the element in 1949, but the name columbium remains in current use in metallurgy in the United States. (wikipedia.org)
  • Subsequently, there was considerable confusion over the difference between columbium (niobium) and the closely related tantalum. (wikipedia.org)
  • Columbium (symbol Cb) was the name originally given to this element by Hatchett, but the International Union of Pure and Applied Chemistry (IUPAC) officially adopted 'niobium' as the name for element 41 in 1950 after 100 years of controversy. (3rd1000.com)
  • and niobium instead of columbium, in deference to European usage. (3rd1000.com)
  • Coulometric measurements have shown that niobium dissolves anodically to give trivalent ions in solution at low current densities. (surrey.ac.uk)
  • At higher current densities the niobium dissolves to give tetravalent ions in solution. (surrey.ac.uk)
  • The differences between tantalum and niobium were unequivocally demonstrated in 1864 by Christian Wilhelm Blomstrand and Henri Etienne Sainte-Claire Deville, as well as Louis J. Troost, who determined the formulas of some of the compounds in 1865 and finally by Swiss chemist Jean Charles Galissard de Marignac in 1866, who all proved that there were only two elements. (wikipedia.org)
  • Niobium compounds have caused liver damage in animal studies. (espimetals.com)
  • Niobium(V) fluoride is used as a starting material to prepare other niobium compounds. (alfa.com)
  • In Chemistry of Tantalum and Niobium Fluoride Compounds , the author draws on thirty years' experience to produce the first ever monograph to systemize and summarize the data available on tantalum and niobium fluoride compounds. (hennesseyingalls.com)
  • The use of (ppm level) niobium impurities in reactor pressure vessel (RPV) steel for neutron flux estimations based on the reaction 93 Nb (n,n′) 93m Nb has been reported previously [1]. (astm.org)
  • LONDON, April 28 (Reuters) - Miner Anglo American said on Thursday it had agreed to sell its niobium and phosphates businesses to China Molybdenum for $1.5 billion in cash to reduce its debt level. (reuters.com)
  • The German chemist Heinrich Rose determined in 1846 that tantalum ores contain a second element, which he named niobium. (wikipedia.org)
  • In 1961, the American physicist Eugene Kunzler and coworkers at Bell Labs discovered that niobium-tin continues to exhibit superconductivity in the presence of strong electric currents and magnetic fields, making it the first material to support the high currents and fields necessary for useful high-power magnets and electrical power machinery. (wikipedia.org)
  • This article presents columnar grain structures characteristic of niobium components fabricated by electron beam melting, using two different size and size distribution spherical powders produced by rapid solidification atomization. (springer.com)
  • The present invention relates to nitrided niobium powders and electrolytic capacitors using the nitrided niobium powders as well as methods of making the powders and electrolytic capacitors and the use of niobium powders for the production of a capacitor. (patent-de.com)
  • A feature of the present invention is to provide nitrided niobium powders, preferably having high surface areas and physical characteristics which permit the nitrided niobium powders to be formed into a capacitor having high capacitance, and which, when formed into capacitors, have a low DC leakage, thus providing a method of reducing the DC leakage in a capacitor formed from nitrided niobium powder. (patent-de.com)
  • 5. The cellulose-containing substrate of claim 1 , wherein said metal additive is niobium powder and optionally hydrided. (google.ca)
  • For niobium, the leading producers are concentrated in Brazil and Canada with just three companies - Companhia Brasileira de Metalurgia e Mineração (CBMM), Anglo American and Iamgold Corp - dominating the market with a combined 85% share. (mining-technology.com)
  • Marcos Stuart, head of technology at CBMM, says many of the rumors about niobium are just that. (fapesp.br)
  • CBMM created a market for niobium after its discovery of the mine in Araxá. (fapesp.br)
  • Niobium is a light grey, crystalline, and ductile transition metal. (wikipedia.org)
  • Niobium, a ductile, shiny, and versatile metal, was little-known to most Brazilians until it recently attracted media attention and became a subject of debate during the presidential elections in Brazil. (fapesp.br)
  • Niobium is a soft, grey, crystalline, ductile transition metal which has a very high melting point and it is corrosion resistant. (tantalumniobium.com)
  • This conclusion was disputed in 1846 by German chemist Heinrich Rose, who argued that there were two different elements in the tantalite sample, and named them after children of Tantalus: niobium (from Niobe) and pelopium (from Pelops). (wikipedia.org)
  • Electrodeposition of niobium from fused electrolytes. (surrey.ac.uk)
  • That niobium improves the strength of steel was first discovered in the 1920s, and this application remains its predominant use. (wikipedia.org)
  • Send me the latest Supplier & Selling Lead Alerts on Niobium Sheet . (hisupplier.com)
  • Initially, researchers in this field considered the possibility of using niobium as a substitute for tantalum capacitors. (patent-de.com)
  • In another study, one conclusion reached was that the use of niobium in solid electrolytic capacitors seems very unlikely due to various physical and mechanical problems, such as field crystallization. (patent-de.com)
  • We're very proud to share our responsive, new SpiCAT software and to better support our customers' design programs by providing quick, easy, and accurate parametric characterization for an extensive range of surface-mount MLCC, tantalum, polymer, and niobium oxide capacitors. (globenewswire.com)
  • For more information about SpiCAT, please visit https://spicat.avx.com/ to access the new SpiCAT - SpiMLCC and SpiCAT - SpiTAN interactive simulation tools for multilayer ceramic, tantalum, polymer, and niobium oxide capacitors. (globenewswire.com)
  • Low-leakage current aspect of designing with tantalum and niobium oxide capacitors' - .PDF file. (theengineer.co.uk)
  • This white paper from AVX considers the low-leakage current aspect of designing with tantalum and niobium-oxide capacitors. (theengineer.co.uk)
  • According to this paper, which presents graphs and equations in support of its conclusions, AVX's TRJ, TAJ and NOJ tantalum and niobium-oxide capacitors are most suitable to support the battery in handheld and TPMS transmitter applications. (theengineer.co.uk)
  • Brazil and Canada are the major producers of niobium mineral concentrates and extensive ore reserves are also in Nigeria, Democratic Republic of Congo, and in Russia. (3rd1000.com)
  • We know the element niobium (Nb) on its own is superconductive when chilled to very low temperatures in the range of 9.2 kelvins," Jardim said. (eurekalert.org)
  • When it is processed at even moderate temperatures niobium must be placed in a protective atmosphere. (3rd1000.com)
  • Although it is biocompatible and benign in use, niobium is difficult to control at the high temperatures needed to process it because of its high reactivity. (phys.org)
  • The main objective of this study is to investigate the effect of the cooling rate from 1 to 40°C/s and the coiling temperatures of 500 and 675°C on the niobium retention in ultra-thin CASTRIP steel. (edu.au)
  • The hardness results were used to assess how the cooling rates and coiling temperatures influenced the niobium retention in the samples. (edu.au)
  • This use quickly became obsolete through the replacement of niobium with tungsten, which has a higher melting point. (wikipedia.org)
  • As an alternative to nanoscaling, we show that complex niobium tungsten oxides with topologically frustrated polyhedral arrangements and dense µm-scale particle morphologies can rapidly and reversibly intercalate large quantities of lithium. (osti.gov)
  • Multielectron redox, buffered volume expansion, and extremely fast lithium transport approaching that of a liquid lead to extremely high volumetric capacities and rate performance for both crystallographic shear structure and bronze-like niobium tungsten oxides. (osti.gov)
  • Niobium is a reactive metal that takes on a variety of brilliant colors when exposed to various levels of electrical current, allowing you to create a rainbow of colors. (riogrande.com)
  • Niobium metal (99.5% pure) is priced at about $75/lb. (radiochemistry.org)
  • 1 kilogram of the precious metal costs US$41,800, about a thousand times the price of niobium. (fapesp.br)
  • Niobium is considered a rare earth metal. (espimetals.com)
  • Niobium metal has caused kidney damage in experimental animals and fibrogenic effects on the lungs of experimental animals. (espimetals.com)
  • The team's method for calculating the optimal metal powder/binder proportions also can be applied to other materials which, like niobium, have irregularly-shaped particles. (phys.org)
  • Niobium metal is found in volcanic rocks of various places around the world. (researchandmarkets.com)
  • It acts as an intermediate during the recovery of niobium metal. (alfa.com)
  • niobium is an associated metal of tantalum,characterized in high strength,high conductivity,resistance to corrosion. (ec21.com)
  • Niobium is a silver coloured metal which is generally found in conjunction with tantalum, the two elements being separated by fractional crystallisation of their respective fluoro-complexes. (goodfellow.com)
  • Today the T.I.C. has around 90 member companies from 25 countries involved with all aspects of the tantalum and niobium industry supply chain, including mining, processing, recycling, metal fabrication, capacitor manufacturing, and medical applications. (mmta.co.uk)
  • We attempt to derive accurate transition probabilities for astrophysically interesting spectral lines of Nb II and Nb III and determine the niobium abundance in the Sun and metal-poor stars rich in neutron-capture elements. (utexas.edu)
  • The UFABC study, "Niobium enhances electrocatalytic Pd activity in alkaline direct glycerol fuel cells," published in the journal ChemElectroChem , says that how the fuel cell works is chemical energy from the glycerol oxidation reaction in the anode and air oxygen reduction in the cathode is transformed into electricity, leaving behind only water and carbon gas as residues. (hydrogenfuelnews.com)
  • Large deposits of niobium have been found associated with carbonatites (carbon-silicate rocks), as a constituent of parochlore. (radiochemistry.org)
  • Niobium carbide is used in tool bits for cutting tools. (alfa.com)
  • Abstract The International Linear Collider (ILC) requires microscale-smooth RF superconducting cavities fabricated from niobium. (sbir.gov)
  • Niobium particles act as a co-catalyst to assist the action of the palladium that is utilized as the fuel cell anode. (hydrogenfuelnews.com)
  • The similarity in the catalytic behavior of niobium-polyoxometalates and heterogeneous niobium single-site catalysts in selective oxidations will be demonstrated. (frontiersin.org)
  • The purification of tens of milligrams of RPV material provides sufficient amounts of niobium for mass determination with a highly sensitive (10 −5 ppm) Inductively Coupled Plasma Mass Spectrometer (ICP-MS). (astm.org)
  • Brazil has large amounts of both niobium and glycerol. (hydrogenfuelnews.com)
  • The Jacobsen and pybox type ligands effect chiral induction in the presence of niobium(V) chloride and tantalum(V) chloride in the Lewis acid catalysed Diels-Alder reaction. (mdpi.com)
  • Due to its low capture cross section for thermal neutrons, Niobium has application in the nuclear industry. (eaglealloys.com)
  • Niobium values were also very prospective with values ranging from 0.02% Nb2O5 to 1.29% Nb2O5. (marketwired.com)
  • Further, in another study, the researchers concluded that anodically formed passive films on niobium were different from electrical properties accomplished with tantalum and that the use of niobium led to complexities which were not present with tantalum. (patent-de.com)
  • On the other hand, niobium-containing mesoporous silicates contain mainly MO 4 tetrahedra and reveal superior activity in heterogeneous catalysis. (frontiersin.org)
  • This study evaluated the effect of niobium in the microstructure, microhardness and charge transfer resistance of one austenitic-ferritic stainless steel. (scielo.br)
  • In the electron microscope images reproduced in the article, the white filaments correspond to the minority phase consisting of approximately 98% niobium and 2% boron. (eurekalert.org)
  • We recommend use of NbCl 5 as an alternative to AgNO 3 on account of the much lower boron association of niobium compared to silver. (diva-portal.org)
  • Social media posts warned that the niobium reserves in Brazil-the largest in the world-were being lost to contraband or being sold for less than their value on the international market. (fapesp.br)
  • He also denies that niobium is being smuggled out of Brazil. (fapesp.br)
  • A recent study conducted by the Federal University of the ABC (UFABC) in São Paulo State, Brazil, has led to the development of a glycerol fuel cell that uses niobium as a co-catalyst. (hydrogenfuelnews.com)