Refers to alloys that are very hard and highly heat resistant, consisting of WC (tungsten carbide), TiC (titanium carbide), TaC (tantalum carbide), etc. bonded with Co (cobalt) or Ni (nickel), which have high toughness.
Generally, the main component is WC-Co, and these are manufactured using powder metallurgy.

Technology for manufacturing metal powders or preparing metal powders to form a predetermined shape and size (grain size) and then manufacturing the product by means of a further sintering process.

The following are typical material properties of cemented carbides.

The material properties of cemented carbides are also significantly influenced by the amount of binder (bonding material) used in the manufacturing process.
This section shows the relationship between the six material properties (hardness, resistance to fracture, fracture toughness value, Young's modulus, thermal conductivity and coefficient of thermal expansion) depending on the content of cobalt (Co), which is a typical binder.