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 (Nb) [ni-o´be-um]
a chemical element, atomic number 1, atomic weight 92.906. (See Appendix 6.)

ni·o·bi·um (Nb),

A rare metallic element, atomic no. 41, atomic wt. 92.90638, usually found with tantalum.
[Niobe, daughter of Tantalus]


/ni·o·bi·um/ (Nb) (ni-o´be-um) a chemical element, at. no. 41.

niobium (Nb)

Etymology: Gk, Niobe, mythic daughter of Tantalus and Amphion
a silver-gray metallic element. Its atomic number is 41; its atomic mass is 92.906. Formerly called columbium.


A rare metallic element; atomic no. 41, atomic wt. 92.90638; usually found with tantalum.
[Niobe, daughter of Tantalus in Greek mythology]


a chemical element, atomic number 1, atomic weight 92.906, symbol Nb. See Table 6.
References in periodicals archive ?
Oxyphenolate complexes of niobium are insoluble in chloroform, while mixed-ligand complexes with hydrophobic amines and aminophenols easily dissolve in various organic solvents [10, 11].
At present, accelerating cavities are manufactured by press-molding niobium plates into cup-shaped parts and welding the parts by electron beams.
This means that the admixture of metal niobium and tantalum in their chlorides did not exceed 1.
Figure 2 shows the XRD patterns of niobium films deposited at different temperatures.
Niobium ingots must have a high mechanical strength for the next remelting process (refining) in the electronbeam furnace.
In case of niobium (see Figure 3), they differ in levitation, arc and plasma melting by not more than 10%.
Tantalum and Niobium Oxide capacitors are generally used for coupling between amplifiers because they have no piezo effect.
For its next-generation SCiBTM, Toshiba has developed a titanium niobium oxide anode material that has double the lithium storage capacity by volume of the graphite-based anodes generally used in lithium-ion batteries.
TEHRAN (FNA)- Iranian metallurgy and materials engineers synthesized transparent conductive electrodes with reasonable price and desirable optical and electrical properties by using niobium nanoparticles and adding them to indium tin oxide.
Lithex tenements cover areas which contain the valuable transition metal minerals including tin, tantalum, niobium, alkali metals including lithium, potassium and with scope to define rare mineral lanthanides and actinides.
without external heat access) of niobium pentoxide reduction in a shaft furnace on the graphite facing, a layer of deposit is formed in the zone where reactions and precipitation of molten products occur [1].