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Tantalum (Ta) | 12 x 2 mm | 99,9%
Weight: 0.00062 kg
Diameter / thickness: Ø 12 mm x 2 mm
Purity: 99.9%
- Description
- Specification
Description
Tantalum is classified as a transition metal in the periodic table and is considered one of the most corrosion resistant refractory metals. Tantalum has a melting point of 3,017°C, a density of 16.6 g/cm³ and a vapour pressure of 10-4 Torr at 2,590°C. It is a greyish-blue metallic element with chemical properties strikingly similar to those of niobium.
It is mainly used in the manufacture of surgical implants as it is non-toxic. It is also used as a capacitor in electronics and can be alloyed with other metals to increase strength and durability. Tantalum, together with its alloys and compounds, is evaporated under vacuum to form semiconductors, optical coatings, magnetic storage media and wear and corrosion resistant coatings.
| Material type | Tantalum |
| Symbol | Ta |
| Atomic weight | 180.94788 |
| Atomic number | 73 |
| Colour/appearance | Metallic, grey-blue |
| Thermal conductivity | 57 Watt/m.K |
| Melting point | 3,017 °C |
| Coefficient of thermal expansion | 6.3 x 10-6/K |
| Theoretical density | 16.6 g/cm³ |
| Z-ratio | 0.262 |
| Sputter | DC voltage |
| Max. power density | 100 watts/square inch*. |
| Bonding type | Indium, elastomer |
| Remarks | Forms good films |
* This is a recommendation based on our experience with these materials in our sputter guns. Rates are based on unbonded targets and are material specific. Bonded targets should be operated at lower power to avoid bonding failure. Bonded targets should be operated at 20 watts/square inch or less depending on the material.
