1. Introduce
– High melting point metal with high density and low coefficient of thermal expansion, resistant to acids and bases
(Below 150℃, it does not react well with royal water, but at high temperatures, it will rust in high concentrations of strong acids)
– Ta alloying element effects: increased strength and ductility, higher melting point
(Tantalum : melting point is the highest after tungsten and rhenium)
2. Property
– Corrosion resistance, ductility, machinability, acid resistance, tensile strength, thermal conductivity and electrical conductivity, excellent biocompatibility
[Ta Mechanical Properties]
| Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|
| Max. 276 | 172 | 50 |
[Ta Physical Properties]
| Density (g/㎤) | Melting Range (℃) | Electrical resistivity (µΩ∙㎝) | Specific Heat (J/kg∙℃) | Thermal Conductivity (W/mK) | Coefficient of Thermal Expansion (µm/m°C) |
|---|---|---|---|---|---|
| 16.65 | 3017 | 15~60 | 140 | 57 | 6.3 |
3. Application
– Chemical industry acid-proofing agent, dies, vacuum tube and radar electron tube, vacuum tube electrode, electrolytic capacitor, resistor, capacitor
(1) Acid resistant / (2) Dies / (3) Vacuum tube / (4) Electrolytic capacitor
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