| 词汇 | scandium |
| 释义 | BETA Examples of scandiumscandium isn’t in the Cambridge Dictionary yet. You can help! While working on rare earths, in 1879 he discovered scandium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Even more recently manufacturers have started using materials such as carbon fiber, titanium, or scandium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hydrogen acts as a hardening agent, preventing dislocations in the scandium atom crystal lattice from sliding past one another. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Three group 3 elements occur naturally, scandium, yttrium, and either lanthanum or lutetium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Titanium, scandium, and zirconium form stable chemical compounds called metal hydrides when combined with hydrogen or its isotopes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. About 80 kg of scandium is used in metal halide lamps/light bulbs globally per year. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some items of sports equipment, which rely on high performance materials, have been made with scandium-aluminium alloys, including baseball bats, and bicycle frames and components. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The first pound of 99% pure scandium metal was produced in 1960. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The production of metallic scandium is in the order of 10 kg per year. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Despite this low level of use, scandium offers significant benefits. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Metallic scandium is produced industrially by the reduction of scandium oxide; this proceeds via conversion to scandium fluoride followed by a reduction with metallic calcium. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this, scandium shows more similarity with aluminium oxide. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many metals form trifluorides, such as iron, bismuth, the rare earth elements, and the metals in the aluminium and scandium columns of the periodic table. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He works as a consultant and dealer in scandium and other exotic metals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The spectrum displays at least double the normal abundances of elements like magnesium, aluminum and silicon, while helium and scandium are under-abundant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He isolated a quantity of scandium in this same year and determined its atomic weight. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The group itself has not acquired a trivial name; however, scandium, yttrium and the lanthanides are sometimes called rare earth metals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many metals form trifluorides, such as iron, the rare earth elements, and the metals in the aluminium and scandium columns of the periodic table. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Element 21 claims that their use of scandium improves performance compared with that of other commonly used metals. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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