Jan 8 2004
Background
The chemical formula for Tantalum Carbide is TaC.
Tantalum Carbide has a metallic lustre, but may also be found as a dark to light brown powder. It burns in air with a bright flash and is slightly soluble in acids.
Applications
Tantalum Carbide is often added to tungsten carbide/cobalt (WC/Co) powder attritions to enhance the physical properties of the sintered structure.
Tantalum Carbide also acts as a grain growth inhibitors preventing the formation of large grains, thus producing a materials of optimal hardness.
It is also used as a coating for steel moulds in the injection moulding of aluminium alloys. While providing a hard, wear resistant surface, it also provides a low friction mould surface.
Tantalum Carbide is also used in the production of sharp instruments with extreme mechanical resistance and hardness.
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Tantalum Carbide is used a a coating for steel moulds in the injection of moulding aluminium alloys. Image Credit: ShutterStock/ NAN NAN SOE
Key Properties
The key properties of Tantalum Carbide are tabulated below.
Table 1. Key properties
| Property |
Value |
| Density ( g.cm-3 ) |
13.9 |
| Melting Point ( °C ) |
3880 |
| Electrical Resistivity (µohm.cm) |
3030 |
| Hardness (Mohs) |
9+ |
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Source: AZoM.com.