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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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