Annealing and Sintering are the same processes.

The melting (not sintering) point of sodium chloride is 801 0C.

Ironton Sintering Plant Complex was created in 1924.

Tungsten carbides are generally called as carbides. Cobalt with Tungsten carbide acts as a binder. When Cobalt added with other elements like Ni / Cr / Mo / Ti are called as cemented carbides.

Sintering is a thermal treatment given to these carbides so as to eleminate the porosities and densify them. During this treatment cobalt binds the WC particles and we get high density.

Sintering welds the metal powder grains together without melting them completely. This produces a solid but porous piece of metal.