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单词 scandium
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Examples ofscandium

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While working on rare earths, in 1879 he discoveredscandium.
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Even more recently manufacturers have started using materials such as carbon fiber, titanium, orscandium.
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Hydrogen acts as a hardening agent, preventing dislocations in thescandiumatom crystal lattice from sliding past one another.
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Three group 3 elements occur naturally,scandium, yttrium, and either lanthanum or lutetium.
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Titanium,scandium, and zirconium form stable chemical compounds called metal hydrides when combined with hydrogen or its isotopes.
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About 80 kg ofscandiumis used in metal halide lamps/light bulbs globally per year.
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Some items of sports equipment, which rely on high performance materials, have been made withscandium-aluminium alloys, including baseball bats, and bicycle frames and components.
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The first pound of 99% purescandiummetal was produced in 1960.
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The production of metallicscandiumis in the order of 10 kg per year.
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Despite this low level of use,scandiumoffers significant benefits.
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Metallicscandiumis produced industrially by the reduction ofscandiumoxide; this proceeds via conversion to scandium fluoride followed by a reduction with metallic calcium.
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In this,scandiumshows more similarity with aluminium oxide.
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Many metals form trifluorides, such as iron, bismuth, the rare earth elements, and the metals in the aluminium andscandiumcolumns of the periodic table.
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He works as a consultant and dealer inscandiumand other exotic metals.
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The spectrum displays at least double the normal abundances of elements like magnesium, aluminum and silicon, while helium andscandiumare under-abundant.
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He isolated a quantity ofscandiumin this same year and determined its atomic weight.
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The group itself has not acquired a trivial name; however,scandium, yttrium and the lanthanides are sometimes called rare earth metals.
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Many metals form trifluorides, such as iron, the rare earth elements, and the metals in the aluminium andscandiumcolumns of the periodic table.
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Element 21 claims that their use ofscandiumimproves performance compared with that of other commonly used metals.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2024/12/27 10:38:46