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AEM Deposition

Niobium Evaporation Material (Nb)

Niobium Evaporation Material (Nb)
Niobium Evaporation Material (Nb)
Material Type Niobium
Symbol Nb
Atomic Weight 92.90638
Atomic Number 41
Color/Appearance Gray, Metallic
Thermal Conductivity 54 W/m.K
Melting Point (°C) 2,468
Coefficient of Thermal Expansion 7.3 x 10-6/K
Z Ratio 0.492
E-Beam Excellent
E-Beam Crucible Liner Material Fabmate®
Temp. (°C) for Given Vap. Press. (Torr) 10-8:  1,728
10-6:  1,977
10-4:  2,287
Comments Attacks W source.


Niobium, formerly columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, ductile transition metal, often found in the minerals pyrochlore and columbite.

Material Notes

AEM Deposition provides Niobium pellets, Niobium powder for sale, purity is 99.95%.

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