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| | Tantalum carbide Basic information |
| | Tantalum carbide Chemical Properties |
| Melting point | 3880°C | | Boiling point | 5500°C | | density | 13.9 | | form | Powder | | color | Gray to black | | Water Solubility | Soluble in hydrofluoric acid and nitric acid. Partially soluble in water. | | Crystal Structure | Cubic, NaCl Structure | | EPA Substance Registry System | Tantalum carbide (TaC) (12070-06-3) |
| RIDADR | UN3178 | | WGK Germany | 3 | | TSCA | Yes | | HazardClass | 4.1 | | PackingGroup | III |
| | Tantalum carbide Usage And Synthesis |
| Chemical Properties | Hard, heavy, refractory, crystalline solid.
Hardness 1800 kg/sq mm, resistivity 30 μΩ?cm (room temperature).
Extremely resistant to chemical action except
at elevated temperature. | | Uses | A mixture of tantalum carbide (TaC) and graphite is a very hard material and is used to
form the cutting edge of machine tools. | | Uses | Tantalum monocarbide, TaC, is a gold-colored powder produced industrially by direct reaction of carbon with either tantalum scrap or tantalum pentoxide at temperatures up to 1,900 °C (3,452 °F). It is added in small amounts (0.2–2 wt %) in the form of TaC or mixed carbides like TaNbC and WTiTaC to tungsten carbide–cobalt-based cutting tools in order to reduce grain growth. Adding 2–15 wt % TaC to cemented carbides considerably increases their thermal shock resistance and their resistance to cratering and oxidation. The tantalum–carbon phase diagram shows the existence of several subcarbides. | | Uses | Cutting tools and dies, cemented carbide tools. | | Flammability and Explosibility | Nonflammable | | Industrial uses | Tantalum carbide and tungsten carbide combinedin a matrix of nickel, cobalt, and/or chromiumprovide an RHM formulation especiallysuited for a combination of corrosion and wearresistance. Some grades are almost as corrosionresistant as platinum. Nozzles, orifice plates,and valve components are typical uses. |
| | Tantalum carbide Preparation Products And Raw materials |
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