Carbidic

Carbidic refers to a chemical compound that contains the carbide ion, C22-. Carbides are compounds of carbon with a more electropositive element. They are typically hard, refractory, and used in applications requiring high hardness and wear resistance. Carbides are classified into four main types based on the electropositivity of the metal: metallic, salt-like, interstitial, and covalent.

Metallic carbides are formed between metals from groups 1 to 3 and carbon. They are typically hard and refractory, with high melting points. Examples include titanium carbide (TiC) and vanadium carbide (VC).

Salt-like carbides are formed between metals from groups 4 to 12 and carbon. They are less hard and more brittle than metallic carbides. Examples include silicon carbide (SiC) and tungsten carbide (WC).

Interstitial carbides are formed between transition metals and carbon. They have a high carbon content and are typically hard and brittle. Examples include chromium carbide (Cr7C3) and molybdenum carbide (Mo2C).

Covalent carbides are formed between non-metals and carbon. They are typically soft and used as abrasives. Examples include boron carbide (B4C) and silicon carbide (SiC).

Carbides have a wide range of applications, including cutting tools, abrasives, and high-temperature materials. They are also used in the production of cemented carbides, which are a type of hardmetal used in cutting tools and wear-resistant parts.