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Niobium (Nb) Sputtering Targets

Niobium (Nb) Sputtering Targets

    Niobium (Nb) Sputtering Targets


Niobium is classified as a transition metal on the Periodic Table of Elements. It is often found in nature with tantalum; hence it mimics many of its properties. It has a melting point of 2,468°C, a density of 8.57 g/cc, and a vapor pressure of 10-4 Torr at 2,287°C. While typically metallic gray in color, it is known to take on a bluish tinge when exposed to air. It is used in various superconducting alloys and is a common element in jewelry production. Niobium and its compounds and alloys are evaporated under vacuum to make semiconductor, optical and wear resistant coatings.

Niobium (Nb) Specifications:

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

Theoretical Density   (g/cc)

8.57

Z Ratio

0.492

Sputter

DC

Max Power Density

(Watts/Square Inch)

100*

Type of Bond

Indium, Elastomer

Comments

Attacks W source.


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