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Tungsten: Sputtering Target grade
SEM Photographs of High-Purity W Powders
Standard grade
(4.10µm)
Fine grade
(1.81µm)
Actual Analysis of High-Purity W Powder
Lot No. 5102
Element
ppm
B
0.005
C
3
N
10
O
210
Na
0.09
Mg
0.04
Al
0.28
Si
0.51
S
0.05
K
<0.01
Ca
0.09
Ti
0.08
V
0.04
Element
ppm
Cr
0.005
Mn
3
Fe
10
Co
210
Ni
0.09
Cu
0.04
Mo
0.28
Pb
0.51
Th
0.05
U
<0.01
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