| 单词 | niobium |
| 例句 | Are there planets where the inhabitants proudly display pendants of niobium and bracelets of protactinium, while gold is a laboratory curiosity? Cosmos 1980-01-01T00:00:00Z Just a pinch of niobium, a soft, granite-grey metal mined mostly in Brazil, greatly strengthens a tonne of steel used in bridges and pipelines. Unobtainiums 2016-01-14T05:00:00Z One was composed of the metals vanadium, niobium, tantalum, molybdenum and tungsten. Electron-rich metals make ceramics tough to crack 2023-10-19T04:00:00Z The proposed mine’s main product would be niobium that’s used to make steel lighter and stronger. Mining company’s deal to sell rare earths to Stellantis may boost project’s fundraising efforts 2023-07-06T04:00:00Z They eventually uncovered deposits containing billions of dollars’ worth of zirconium, niobium, and other elements that are critical in electronics, defense, and renewable energy technologies. Major U.S. geological survey aims to uncover minerals critical for batteries and microchips 2023-06-01T04:00:00Z He cited as an example an experiment at Stanford that involved spraying electrons and positrons into a ball of niobium to detect electric charges. Ian Hacking, Eminent Philosopher of Science and Much Else, Dies at 87 2023-05-28T04:00:00Z Follow-up work in the field and lab confirmed not just elevated levels of rare earths, but also niobium and zirconium, minerals used in jet engine components and nuclear control rods. A government program hopes to find critical minerals right beneath our feet 2023-03-19T04:00:00Z The other variant substituted niobium with chromium in the mix. Electron-rich metals make ceramics tough to crack 2023-10-19T04:00:00Z Currently, America imports all the niobium and scandium and most of the titanium and rare earths that NioCorp hopes to produce. Mining company’s deal to sell rare earths to Stellantis may boost project’s fundraising efforts 2023-07-06T04:00:00Z The main element NioCorp plans to produce is a heat-resistant element called niobium, which is used to make steel lighter and stronger. Company gets closer to raising $1.1B it needs for mine 2023-03-15T04:00:00Z Australia’s resources of critical minerals like antimony, cobalt, lithium, manganese ore, niobium, tungsten and vanadium rank in the top five globally, an Australian government website said. Japan, Australia upgrade security pact against China threat 2022-10-22T04:00:00Z Lithium ions nestle close to niobium atoms during charging and simply drift away during discharge, causing less damage to the battery as it goes through repeated charge/discharge cycles. California’s move to phase out gas-powered cars could spark battery innovations 2022-09-06T04:00:00Z These metals include titanium, niobium and tungsten, for example. Electron-rich metals make ceramics tough to crack 2023-10-19T04:00:00Z In the quest for smaller batteries that charge extremely quickly, the startup firms are experimenting with materials like silicon-carbon, tungsten and niobium. For EV battery makers, it's go small or go home 2022-07-11T04:00:00Z Last month, an Office of Science report detailed potential bottlenecks in the supplies of everything from materials such as niobium, a superconducting metal, to certain types of software. Pandemic lockdowns, supply shortages, and inflation wreak havoc with big science projects 2022-06-01T04:00:00Z During his 2018 presidential campaign, he said deposits of the metallic element niobium, found under Indigenous lands, could transform Brazil into a mining powerhouse, but the proposal fell by the wayside after he took office. Mining companies back away from Brazil’s Indigenous areas 2022-05-20T04:00:00Z That increased battery life should offset niobium’s price, which is typically more than 30 times that of graphite. California’s move to phase out gas-powered cars could spark battery innovations 2022-09-06T04:00:00Z The U.S. imports all the niobium and scandium and most of the titanium and rare earths that NioCorp hopes to produce. Proposed Nebraska mine has sizeable deposit of rare elements 2022-05-19T04:00:00Z The U.S. is dependent on imports for the 35 substances it currently designates as critical minerals, including niobium, scandium and titanium. Nebraska project finds key minerals, but can it mine them? 2021-12-22T05:00:00Z About 90% of the niobium used here comes from Brazil and the other elements are largely produced in China. Proposed Nebraska mine might produce more rare elements 2021-12-14T05:00:00Z Available resources of niobium, used as an alloy for steel, are more than sufficient to supply the world’s projected needs, according to the U.S. Mining companies back away from Brazil’s Indigenous areas 2022-05-20T04:00:00Z At ITER, sufficiently powerful fields are achieved using niobium alloy superconducting wires that can carry huge currents without resistance through magnet coils. Fusion startup plans reactor with small but powerful superconducting magnets 2021-03-03T05:00:00Z Other physicists at Bell Labs were exploring alloys containing metals like niobium, molybdenum and rhenium as well as a smidgen of iron. Myriam Sarachik Never Gave Up on Physics 2020-08-31T04:00:00Z Unlike niobium and scandium, there are a few U.S. mines, but more than half the titanium is imported from China and other countries. Nebraska project finds key minerals, but can it mine them? 2021-12-22T05:00:00Z The U.S. imports all the niobium and scandium and most of the titanium and rare earths that manufacturers rely on now. Proposed Nebraska mine might produce more rare elements 2021-12-14T05:00:00Z Ando et al. produced an artificial film called a superlattice that is composed of stacked alternating layers of niobium, vanadium and tantalum. One-way supercurrent achieved in an electrically polar film 2020-08-18T04:00:00Z The powder is a byproduct from tantalum and niobium mining by Estonian company Silmet, which contains uranium. In Utah, a debate stirs over Estonian radioactive waste 2020-07-16T04:00:00Z The deposit will primarily produce niobium, which is used to harden steel and is not a rare earth. Factbox: Rare earths projects under development in U.S. 2020-04-22T04:00:00Z But a proposed mine to recover the minerals — niobium, scandium and titanium — is instead providing a case study in the difficulty of actually launching such projects in the U.S. Nebraska project finds key minerals, but can it mine them? 2021-12-22T05:00:00Z NioCorp Developments Ltd. said in a news release that the commissioners determined the niobium mine was not incompatible with agriculture and was designed to minimize impact on its neighbors. County grants permit for southeast Nebraska mine project 2019-12-24T05:00:00Z Many Brazilians, from across the political spectrum, believe the Amazon contains untold riches in minerals that are coveted by other nations, from gold to niobium, a strategic metal used in satellites. Amazon fires scorch Bolsonaro's reputation abroad, but not in Brazil 2019-08-29T04:00:00Z In the mid 1970s, scientists discovered that niobium mixed with tin was an even better superconductor, leading to magnets of 24 teslas, now used for research at hundreds of universities. The "Woodstock of Physics" Is Finally Living Up to Its Promise 2019-07-12T04:00:00Z Meanwhile JX, which bought a German maker of tantalum and niobium products last year, is studying the possible acquisition of stakes in mines producing the two rare metals, he said. Japan's JX Nippon Mining seeks pot of gold in high-tech chips,... 2019-07-03T04:00:00Z Using conventional machining to create the mesh would require toxic lubricants and waste a substantial amount of niobium, which is expensive. Five innovative ways to use 3D printing in the laboratory 2019-01-01T05:00:00Z Technology-critical elements include tantalum, gallium, germanium, indium, niobium, tellurium, thallium and other scarce metals. Risks from technology-critical metals after extraction 2018-05-22T04:00:00Z Niobium and niobium nitride SQUIDs based on anodized nanobridges made with an atomic force microscope. GaN/NbN epitaxial semiconductor/superconductor heterostructures 2018-03-06T05:00:00Z Conventional superconductors consist of simple metals, such as niobium, lead, or mercury, which become superconducting when cooled to below a characteristic “critical temperature” close to absolute zero—4.2 K in the case of mercury. Superconducting materials found in meteorites 2018-03-06T05:00:00Z Regardless of the method, searching for gold and other minerals like cassiterite and niobium is dirty, dangerous and often illegal. Brazilians toil for gold in illegal Amazon mines 2017-09-14T04:00:00Z And IBM also hopes that the finding might be exploited in electronics, because it generates an electrical current inside the niobium phosphide crystal. Big Bang gravitational effect observed in lab crystal 2017-07-19T04:00:00Z The study predicts the mine would annually produce more than 11,000 tons of titanium, more than 7,000 tons of niobium and more than 100 tons of scandium. Company predicts Nebraska mine project could be worth $17.6B 2017-07-08T04:00:00Z In April, it agreed to sell its Brazilian niobium and phosphates businesses to China Molybdenum for $1.5 billion. Anglo American Rethinks Sale Plan as Commodity Prices Rise 2016-12-22T05:00:00Z NioCorp wants to build a mine and processing facilities on land near Elk Creek to extract and process niobium, scandium and titanium - rare metals used in a host of manufacturing and other industries. Rare metals company seeks 2017 construction on Nebraska mine 2016-12-10T05:00:00Z Regardless of the method, searching for gold and other minerals like cassiterite and niobium is dirty, dangerous and often illegal. Brazilians toil for gold in illegal Amazon mines 2017-09-14T04:00:00Z But the researchers exploited a peculiar parallel between gravity and temperature to create a lab analogue of the anomaly in niobium phosphide crystals. Big Bang gravitational effect observed in lab crystal 2017-07-19T04:00:00Z NioCorp’s primary target is niobium, which is used to harden steel. Mining company plans to dump saltwater into Missouri River 2016-10-22T04:00:00Z The facility just outside Albany remains a major refiner of zirconium, used in fuel assemblies for nuclear reactors, as well as other exotic metals such as hafnium, niobium, tantalum and vanadium. Man waiting for late father’s Wah Chang compensation 2016-08-08T04:00:00Z The Millersburg plant also produces a number of other specialty metals, including hafnium and niobium, for a variety of applications in the aerospace and medical industries, among others. Depleted uranium at Wah Chang led to decades of health woes 2016-06-21T04:00:00Z The cooling apparatus enables the niobium computer chip at its core to function at a temperature of just under –273C, or as close to absolute zero as the known universe gets. Has the age of quantum computing arrived? 2016-05-22T04:00:00Z Anglo also plans to sell some coal assets in Australia and South Africa, some copper mines and said it would press ahead with the sale of its phosphates and niobium businesses in 2016. Diamonds are forever; is Anglo American? 2015-12-10T05:00:00Z NioCorp Developments officials discussed the latest projections for a niobium mine near Elk Creek with investors Monday. Mining firm defends $900M cost estimate for Nebraska project 2015-04-20T04:00:00Z Nearly 100 people who live near Elk Creek attended a meeting Wednesday with top officials from NioCorp Developments to hear about the possible niobium mine. Mining firm meets with Nebraska landowners 2014-06-11T04:00:00Z “And we will sell that to other people who will mine it for rare earth minerals like yttrium, niobium, vanadium, many of which are highly prized per microgram.” Construction Begins on New Carbon-Capture Plant 2013-10-03T22:15:00.650Z Other minerals, including rare earths, niobium and titanium ores, would see royalties rise from 3% of gross sales value to 10%. Kenya revokes mining licences 2013-08-05T15:47:25Z The EU sees "especially strong potential" in Greenland's deposits of niobium, platinum, rare earths and tantalum, among the elements on an EU "critical raw materials" list. Greenland defiant on rare earths 2013-01-15T13:38:48Z Tantalum, tan′tal-um, n. a very rare metal of no practical importance, discovered in 1801, closely allied to columbium or niobium. Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) 2012-01-30T03:00:19.113Z Now most use niobium to plate those chips. Sad Stupidity at the European Commission 2011-12-30T15:58:50Z “Demand for niobium is projected to grow faster than the expansion in world crude steel production.” Baosteel Group Pays $1.95 Billion for Stake in Niobium Miner 2011-09-02T06:54:37Z After 49 years and $750 million, a Stanford University experiment using superconducting niobium spheres confirmed parts of Einstein’s general theory of relativity. News Scans: 6 Quick Science Tidbits 2011-07-15T11:15:02.800Z But the company's paper in Nature demonstrated definitive quantum behavior in a system with eight qubits, made from superconducting niobium loops. First Commercial Quantum Computer Is Sold 2011-05-31T20:45:00.253Z It has begun work on spinning out its niobium mine in Quebec and it plans to expand its Rosebel gold mine in Suriname. Iamgold ready for risks, spinoffs as it eyes growth 2011-05-24T16:27:15Z The size of Ping-Pong balls and coated with the superconductor niobium, the spheres were the roundest objects ever created by human beings. Gravity Probe B Finally Pays Off 2011-05-05T19:27:00Z However, trapped charges in the niobium made the gyroscopes far less round electrically; an Earth-sized map of a sphere's voltage landscape would sport peaks as high as Mount Everest. At Long Last, Gravity Probe B Satellite Proves Einstein Right 2011-05-04T22:30:54Z Much as national governments and industry, Brussels is concerned about niobium, platinum group metals, rare earths and a dozen basic commodities. EU stakes claim on rare metals crucial to next-generation industries 2010-06-29T13:00:00Z Of 41 minerals and metals it analyzed, the commission identified these 14 as short in supply: antimony, beryllium, cobalt, fluorspar, gallium, indium, germanium, graphite, magnesium, niobium, platinum group metals, rare earths, tantalum and tungsten. Europe Sounds Alarm on Minerals Shortage 2010-06-16T19:03:00Z "Most of our gold investors don't even know how to pronounce niobium and they have no idea what it is," he said. Iamgold ready for risks, spinoffs as it eyes growth 2011-05-24T16:27:15Z Specimens in which the iron is largely replaced by manganese are known as manganocolumbite or manganotantalite, according as they contain more niobium or more tantalum. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" But the knowledge was very imperfect; neither was it much clarified by H. Rose, who regarded niobium oxide as the element. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" Brazil produces more than three-quarters of the world's niobium, which is used in superconducting magnets. EU stakes claim on rare metals crucial to next-generation industries 2010-06-29T13:00:00Z Afghanistan, antimony, beryllium, , , cobalt, Democratic Republic of Congo, fluorspar, gallium, germanium, graphite, indium, magnesium, metals, minerals, niobium, platinum group metals, rare earths, Russia, tantalum, tungsten U.N. Europe Sounds Alarm on Minerals Shortage 2010-06-16T19:03:00Z But niobium is just one aspect of the project. Iamgold ready for risks, spinoffs as it eyes growth 2011-05-24T16:27:15Z The residue may consist of unremoved silica, and oxides of tantalum, niobium, and, perhaps, chromium. A Text-book of Assaying: For the Use of Those Connected with Mines. Chemically related to vanadium are the two elements tantalum and columbium or niobium. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" It will be seen that scandium and yttrium, of the positive group, differ only in details from vanadium and niobium, of the negative group; the ground-plan on which they are built is the same. Occult Chemistry Clairvoyant Observations on the Chemical Elements Its negative complement consists of nitrogen, vanadium and niobium, and we have again to note that nitrogen, like hydrogen and oxygen, departs from its group type. Occult Chemistry Clairvoyant Observations on the Chemical Elements The corresponding group consists of nitrogen, vanadium and niobium; they are triatomic, paramagnetic, and negative. Occult Chemistry Clairvoyant Observations on the Chemical Elements The oxide of niobium dissolved in a bead of microcosmic salt gives a bluish colour in the reducing flame. A Text-book of Assaying: For the Use of Those Connected with Mines. |
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