Capacitor grade tantalum powder


tantalum powder, the dense oxide film formed on the surface of the powder has the properties of one-way conductive valve metal.

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Classification:

Tantalum


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Description: Metal tantalum powder, the dense oxide film formed on the surface of the powder has the properties of one-way conductive valve metal. The prepared anode film has stable chemical properties (especially stable in acid electrolyte), high resistivity (7.5×1010Ω·cm), high dielectric constant (27.6), and low leakage current. It also has the advantages of wide operating temperature range (-80~200℃), high reliability, shock resistance and long service life. Adopt sodium heat reduction and hydrogen embrittlement method to make powder. Or use 55%KCl-27.5%KF-17.5%K2TaF7 to form molten salt electrolyte to produce tantalum powder. Used to manufacture high-quality electrolytic capacitors (the capacitance is more than 5 times larger than the ordinary capacitance of the same size).

Uses: Military equipment and high-tech fields, such as missiles, space vehicles, televisions, electronic computers, etc.

Executive standard: YS/T 573-2007

Typical chemical analysis

Grade

FTA17

FTA23

FTA30

FTA40

FTA50

Impurity content

O

1500

1800

2000

2500

2800

C

30

30

40

50

50

N

100

150

250

300

350

H

100

100

100

100

100

Nb

10

10

10

10

10

Fe

15

15

15

15

15

Ni

15

15

15

15

15

Mo

5

5

5

5

5

Cr

15

15

15

15

15

Al

5

5

5

5

5

Mn

5

5

5

5

5

K

10

10

10

25

25

Ti

5

5

5

5

5

Na

10

10

10

10

10

W

5

5

5

5

5

Mg

5

5

5

5

5

Si

15

15

15

15

15

Bulk Density

g/cm3

1.8-2.5

1.5-2.5

1.4-2.0

1.4-1.8

1.4-2.8


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