Tantalum carbide
From Wikipedia, the free encyclopedia
| Tantalum carbide | |
|---|---|
| Image:Tantalum carbide.jpg | |
| General | |
| Other names | tantalum (IV) carbide |
| Molecular formula | TaC |
| Molar mass | 192.959 g/mol |
| Appearance | black-gray odorless powder |
| CAS number | [12070-06-3] |
| Properties | |
| Density and phase | 1.39 g/cm3, solid |
| Solubility in water | insoluble |
| Melting point | 3880°C |
| Boiling point | 5500°C |
| Hazards | |
| EU classification | not listed |
| NFPA 704 | |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
Tantalum carbide (TaC) is an extremely hard refractory ceramic material, commercially used in tool bits for cutting tools. It is a heavy, brown powder usually processed by sintering, and an important cermet material. It is sometimes used as a fine-crystalline additive to tungsten carbide alloys.
When used as a mould coating, it produces a low friction surface.
Tantalum carbide-graphite composite material, developed in Los Alamos National Laboratory, is one of the hardest materials ever synthesized.
Substances to avoid are: flammable gases.
[edit] See also
[edit] External links
