Material Type	Niobium	Z Ratio	0.492
Symbol	Nb	Sputter	DC
Atomic Weight	92.90638	Max Power Density*	100
Atomic Number	41	(Watts/Square Inch)
Color/Appearance	Gray, Metallic	Type of Bond	Indium, Elastomer
Thermal Conductivity	54 W/m.K	Comments	Attacks W source.
Melting Point (°C)	2,468
Coefficient of Thermal Expansion	7.3 x 10-6/K

Niobium Sputtering Target

We provides niobium target with uniform, high-density microstructure, and controlled texture, promoting uniform sputtering rates and generally superior sputtering behavior.

Chemical Composition of Niobium Sputtering Target

Grade	Chemical Composition, Max
	Fe	Si	Mo	W	Ti	Cr	Ta	Ni	O	C	H	N	Nb+Ta≥%
Nb3	20	20	80	100	10	10	1000	20	250	100	15	150	99.9
Nb2	10	10	50	50	5	5	500	10	200	50	10	100	99.95
Nb1	5	5	10	20	1	1	100	1	100	30	10	50	99.99

Niobium Sputtering Target Specifications

We can supply 8″, 12″ niobium round shape sputtering target. The largest disc target that we can provide is with 29” diameter. Below are most of the standard sizes for our tantalum rectangle sputtering targets. If you do not see the size that you need, please feel free to contact us.

Sizes/Tolerance(mm.max)

Thickness	Tolerance		Width	Tolerance	Length	Tolerance
	GradeⅠ	GradeⅡ
3-8	±0.1	±0.2	50-400	±0.2	50-1800	±0.2
8-14	±0.1	±0.2	50-350	±0.2	50-1500	±0.2
≥14	±0.1	±0.2	50-300	±0.2	50-1200	±0.2

Sizes/Tolerance(mm.max)

Thickness	Tolerance		Diameter	Diameter Tolerance
	GradeⅠ	GradeⅡ
3-8	±0.1	±0.2	50-450	±0.2
8-14	±0.1	±0.2	50-450	±0.2
≥14	±0.1	±0.2	50-400	±0.2