Tantalum powders
EB melted capacitor powder: 1, 2а, 2б, 3, 4б, 5а, 5б
Tantalum powder for high-voltage capacitor ВВ-1, ВВ-2, ВВ-3
Tantalum powder of fine grain size ТаПM
Agglomerated Tantalum powder ТаПА, ТаПБ
Chemical composition, %
| Grade | Ta |
Ti |
W |
Mo |
O |
N |
Na |
Al |
Cr |
Co |
Cu |
| 1, 2а, 2б,
3, 4а, 4б 5а 5б ВВ-1, ВВ-2, ВВ-3 ТаПА, ТаПБ ТаПМ |
осталь- ное |
0.0008 0.0008 0.0008 0.0008 0.0008 0.01 |
0.01 0.003 0.003 0.003 0.003 0.02 |
0.01 0.001 0.001 0.001 0.001 0.01 |
0.15 0.25 0.3 0.15 0.35 0.9 |
0.012 0.012 0.012 0.012 0.012 0.01 |
0.0003 0.0003 0.0003 0.0003 0.0003 0.0005 |
0.0008 0.0003 0.0003 0.0005 0.0003 0.01 |
0.0008 0.0005 0.0005 0.0005 0.0005 0.008 |
0.0001 0.0001 0.0001 0.0001 0.0001 0.0005 |
0.002 0.001 0.001 0.001 0.001 0.01 |
| Grade | Nb |
Fe |
Si |
C |
H |
Mg |
Ca |
Mn |
Ni |
Zr |
Sn |
| 1,
2а, 2б, 3, 4а, 4б 5а 5б ВВ1, ВВ2, ВВ3 ТаПА, ТаПБ ТаПМ |
0.05 0.1 0.1 0.05 0.05 0.2 |
0.005 0.002 0.002 0.002 0.003 0.05 |
0.003 0.0015 0.0015 0.001 0.0015 0.02 |
0.01 0.007 0.007 0.003 0.007 0.05 |
0.01 0.01 0.01 0.01 0.01 0.05 |
0.0003 0.0003 0.0003 0.0003 0.0003 0.01 |
0.0015 0.002 0.002 0.0015 0.002 0.02 |
0.0003 0.0003 0.0003 0.0003 0.0003 0.005 |
0.0005 0.0005 0.0005 0.0005 0.0005 0.01 |
0.0005 0.0005 0.0005 0.0005 0.0005 0.001 |
0.0005 0.0002 0.0002 0.0003 0.0003 0.0005 |
Powder characteristics
| Property/Grade | 1 |
2a |
2b |
3 |
4a |
4b |
5a |
5b |
ВВ1 |
ВВ2 |
ВВ3 |
ТаПМ |
|
| Grain size, mm | 40-63 |
5-63 |
5-63 |
5-40 |
20-63 |
20-63 |
3-30 |
3-30 |
40-63 |
20-63 |
5-63 |
<5.0 |
|
| Sieve remainder | 0063(+) 004 (+) 004 (-) |
10 - 10 |
10 - - |
5 - - |
- 10 - |
1.5 - - |
1.5 - - |
- - - |
- - - |
10 - 10 |
2.0 - - |
5.0 - - |
- - - |
| Specific surface, cm / 2 g | 70- 140 |
240- 330 |
280- 410 |
390- 560 |
130- 160 |
150- 180 |
600- 800 |
700- 1000 |
actual |
- |
- |
2000- 3000 |
|
| Bulk density, g/cm3 | 7-8 |
6.8- 7.3 |
6.3- 7.0 |
5.9- 6.4 |
7.5- 7.8 |
7.2- 7.6 |
4.8- 5.3 |
4.6- 5.0 |
7-8 |
7,2-7,6 |
6.3- 7.0 |
3.0- 4.0 |
|
| Specific charge, mC/g | - |
- |
- |
- |
- |
- |
4000- 4900 |
4900- 5600 |
600- 1000 |
1100- 1500 |
1800- 2200 |
3700 +(700) |
|
| Specific сapacitance, CV/g | 7-10 |
14-16 |
17-20 |
19-22 |
10-12 |
12-14 |
- |
- |
- |
- |
- |
- |
|
| DCL, mA/mC - 10-3 | - |
- |
- |
- |
- |
- |
<2.0 |
<2.0 |
<1.0 |
<1.0 |
<1.0 |
- |
|
| Average leakage current, mA | <2.0 |
<3.0 |
<3.0 |
<3.0 |
<3.0 |
<3.0 |
- |
- |
- |
- |
- |
- |
|
| Dissipation factor, tan d, % | <2.0 |
<3.0 |
<3.0 |
<3.0 |
<2.0 |
<2.0 |
<2.0 |
<2.0 |
<4.0 |
<5.0 |
<7.0 |
- |
|
Metallurgical grade Tantalum powder
| Grade | Ta |
Nb |
N |
O |
C |
Fe |
Si |
Ti |
Na |
S |
P |
Ca |
| A | 99.0 |
0.1 |
0.5 |
0.5 |
- |
0.07 |
0.05 |
- |
0.07 |
0.01 |
0.01 |
0.05 |
| Б | 99.5 |
0.05 |
0.2 |
0.3 |
- |
0.01 |
0.01 |
- |
0.02 |
0.005 |
0.005 |
0.002 |
| В | 98.6 |
0.1 |
0,5 |
0,5 |
0.2 |
0.07 |
0.05 |
0.02 |
0.02 |
- |
- |
- |
Tantalum powders properties and groups
Table 1 Mass fraction of verifiable impurities
Element |
Powder group and mass fraction of impurities, ppm, max. |
||
3.5 kCV |
4.4 kCV |
Up to 8 kCV |
|
Nb |
40 |
40 |
50 |
Fe |
20 |
20 |
35 |
Si |
8 |
8 |
15 |
Ca |
3 |
3 |
10 |
Ti |
1 |
1 |
5 |
Al |
- |
- |
- |
W |
5 |
5 |
5 |
Mo |
3 |
3 |
5 |
Mn |
1 |
1 |
5 |
Mg |
10 |
10 |
25 |
Ni |
3 |
3 |
5 |
Cr |
5 |
5 |
5 |
Cu |
3 |
3 |
7 |
K |
2 |
2 |
5 |
Na |
2 |
2 |
5 |
P |
- |
- |
- |
Table 2 Mass fraction of verifiable impurities
Element |
Powder group and mass fraction of impurities, ppm, max. |
||
30 kCV |
40 kCV |
50 kCV |
|
Nb |
40 |
40 |
40 |
Fe |
20 |
20 |
20 |
Si |
20 |
20 |
20 |
Ca |
5 |
5 |
5 |
Ti |
3 |
3 |
3 |
Al |
5 |
5 |
5 |
W |
5 |
5 |
5 |
Mo |
3 |
3 |
3 |
Mn |
3 |
3 |
3 |
Mg |
18 |
20 |
20 |
Ni |
5 |
10 |
10 |
Cr |
10 |
10 |
10 |
Cu |
3 |
3 |
3 |
K |
25 |
25 |
25 |
Na |
10 |
10 |
10 |
P |
110 |
150 |
150 |
Table 3 Mass fraction of verifiable impurities
Element |
Powder group and mass fraction of impurities, ppm, max. |
||
3.5 kCV |
4.4 kCV |
Up to 8 kCV |
|
C |
20 |
20 |
80 |
O |
1300 |
1500 |
1700 |
N |
50 |
50 |
100 |
H |
50 |
50 |
100 |
Table 4 Mass fraction of verifiable impurities
Element |
Powder group and mass fraction of impurities, ppm, max. |
||
|
|||
30 kCV |
40 kCV |
50 kCV |
|
C |
35 |
35 |
35 |
O |
2000 |
2600 |
3400 |
N |
200 |
200 |
300 |
H |
90 |
130 |
170 |
Table 5 Physical properties
Parameter |
Powder group |
||
3.5 kCV |
4.4 kCV |
Up to 8 kCV |
|
Anode crushing strength, N (kgf), min. |
39.2 (4) |
19.8 (2) |
- |
Bulk density, g/cm3 |
3.35 to 3.96 |
3.05 to 3.65 |
3.5 to 5.6 |
Mean particle size according to Fisher SSS, µm |
6.0 to 12.0 |
- |
4.0 to 9.0 |
Max. fines content, %: |
- |
- |
10 |
Table 6 Physical properties
Parameter |
Powder group |
||
30 kCV |
40 kCV |
50 kCV |
|
Anode crushing strength, |
58.9 (6) |
||
Bulk density, g/cm3 |
1.4 to 1.95 |
1.4 to 2.0 |
1.4 to 2.1 |
Table 7 – Electrical properties
Parameter |
Powder group |
||
3.5 kCV |
4.4 kCV |
Up to 8 kCV |
|
Specific charge, µC/g |
3400 to 4600 |
3770 to 4880 |
6500 to 8000 |
DC leakage current, µA/g, max. (to be measured at the second minute) |
0.5 |
0.55 |
1 |
Specific charge, µC/g |
2570 to 3500 |
3370 to 4380 |
- |
DC leakage current, µA/g, max. (to be measured at the second minute) |
1.4 |
0.88 |
- |
Table 7 – Electrical properties - Continued
Parameter |
Powder group |
||
30 kCV |
40 kCV |
50 kCV |
|
Specific charge, µC/g |
19800 to 22000 |
35000 |
56800 |
Min. breakdown voltage, V |
110 |
90 |
80 |
DC leakage current, µA/g, max. (to be measured at the third minute) |
3.5 |
9 |
20 |
Specific charge, µC/g |
24000 to 26000 |
36000 |
60500 |
DC leakage current, µA/g, max. (to be measured at the third minute) |
5,0 |
12 |
25 |
Min. breakdown voltage, V |
100 |
80 |
75 |
Particle size, specific surface area, and dissipation factor for these powders – according to the contract and the customer’s specification
Marketing Service of Uranium Production Department:
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phone: +7 (7232) 29-86-05
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04-01-2017
