hafnium
['hæfnɪəm]
n. 铪

[] 铪

[医] 铃(72号元素)

1. Chemical form of hafnium is perchlorate or nitrate.
   铪形态氯酸盐硝酸盐。
2. The field emission properties of hafnium coated carbon nanotubes( CNTs) were investigated.
   研究沉积铪膜碳纳膜场射性影响。
3. Non hafnium superalloy DZ4, which is widely applied in service aero engines in present, is introduced.
   绍目役动使铪凝固合金DZ4其铸性。

hafnium
[ noun ]
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
<noun.substance>




hafnium \haf"ni*um\ (h[a^]f"n[=e]*[u^]m or h[aum]f"n[=e]*[u^]m),
n.
A metallic element of atomic number 72 present together with
zirconium to the extent of 1% to 5% in zirconium minerals. It
is a poisonous, ductile metal with a brilliant silver luster,
has an atomic weight of 178.49, and has a high melting point
(2227[deg] C). It is used in nuclear reactors, and
incandescent lamps as a scavenger of oxygen and nitrogen. See
also {norium}.