Performance is almost the end of metallurgical products, and particle size is directly related to

It affects the powder forming, sintering shrinkage and final product properties. Some properties of powder metallurgy products almost directly related to particle size, for example, the filter material by filtration empirically original mean particle size of the powder particles obtained by 10; carbide product performance and wc phase  polycrystalline diamond  a very great relationship, to get finer grain carbide, only a more fine-grained materials wc possible. Production of the powder used in practice, having a particle  synthetic diamond  from a few hundred nanometers to several  Diamond blade . Smaller the particle size, the greater the activity, the more easily oxidized and surface water. When the small to several hundred nm, the powder is very easy storage and transport, but also to a certain extent when the small quantum effect comes into play, the great changes in physical properties will occur, such as ferromagnetic powder will become superparamagnetic powder, melting point decreases as the particle size decreases.