gallium

/gal-ee-uhm/US // ˈgæl i əm //UK // (ˈɡælɪəm) //

镓,镓,镓的,镓的作用

Definitions

n.名词 noun

1
Chemistry.
- : a rare, steel-gray, trivalent metallic element used in high-temperature thermometers because of its high boiling point and low melting point. Symbol: Ga; atomic weight: 69.72; atomic number: 31; specific gravity: 5.91 at 20°C.

For a start, power electronics are generally built from gallium nitride semiconductors rather than silicon.
In 1875 Lecoq de Boisbandram discovered gallium, which filled one of the gaps; scandium and germanium filled the other two later.
The Pierrefitte blende contains one part of gallium in four hundred thousand.
A sulphate and a chloride of gallium have already been obtained.
The new element was named gallium in honour of France, the discoverers native country.
Gallium resembles lead in appearance, but is less blue in colour.