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Niobium - Tantalum / Foil

Description

Niobium and tantalum are transition metals almost always paired together in nature. These two metals are difficult to separate because of their shared physical and chemical properties. The average abundance of niobium and tantalum in bulk continental crust is low, with 8.0 parts per million (ppm) niobium and 0.7 ppm tantalum. Their chemical characteristics reduce their potential to substitute for more common elements in rock-forming minerals and make them practically immobile in many aqueous solutions ^[1].

Alfa Chemistry specializes in providing high quality niobium-tantalum foil on the market today. We can also customize various shapes of niobium products according to your requirements or drawings.

General Properties

Items	Niobium / Tantalum - Foil
Catalog	ACAM-Nb-A006
Material	Nb40Ta60, Nb30Ta70, Nb20Ta80, Nb3Ta97
Size	Thickness: 0.03-0.07mm Width: 30-200mm Length: ＞50mm
Purity	>=99.9% or 99.95%
Standard	ASTM B708-98

Chemical Component

Elements	Ta	Nb	C	O	N	H	Fe	Mo	Ni	Si	Ti	W
Nb40Ta60	Reminder	37.0~43	0.004	0.012	0.004	0.0015	0.005	0.004	0.003	0.004	0.003	0.004
Nb30Ta70	Reminder	27.0~33	0.004	0.012	0.004	0.0015	0.005	0.004	0.003	0.004	0.003	0.004
Nb20Ta80	Reminder	17.0~23	0.005	0.012	0.005	0.0015	0.005	0.005	0.004	0.005	0.004	0.005
Nb3Ta97	Reminder	2.5~3.5	0.005	0.012	0.005	0.0015	0.005	0.005	0.004	0.005	0.004	0.005

* Unit: %, max

Applications

As with the advantages of lower price, lower density, intermediary corrosion resistance, niobium-tantalum foil can be used for grain refining, hardening, and improving alloy performance by enhancing properties such as ductility and machinability. Typical application areas of niobium-tantalum foil include:

Chemical industry

Electronic

Aviation and aerospace

Reference

Niobium and tantalum: indispensable twins. USGS Numbered Series, 2014.DOI 10.3133/fs20143054.