How does the particle size distribution of tungsten particles affect its performance?

The particle size distribution of tungsten particles is directly related to many key properties of tungsten materials. The smaller size of tungsten particles generally means a larger bonding area between the particles, which makes the material stronger when stressed, giving it greater strength. For tungsten particles with larger particle sizes, although the strength of the material may be reduced, it may increase its toughness because there is more deformation and energy absorption between particles when stressed.

The particle size distribution of tungsten particles also affects the formability of the material. If the particle size distribution of the particles is relatively narrow, there will be relatively few gaps between the particles, which will help reduce the formation of pores and defects during the forming process, thus improving the forming quality of the material. On the contrary, if the particle size distribution of the particles is wide, the particles may be unevenly arranged or insufficiently filled during the forming process, resulting in poor forming effect of the material.

The particle size of tungsten particles will also directly affect the thermal conductivity of the material. Generally speaking, the smaller the particle size, the shorter the heat conduction path between particles, and therefore the better the thermal conductivity of the material. This means that tungsten particles with a smaller particle size distribution can conduct heat more effectively, allowing the material to work more stably in high-temperature environments.

In addition to mechanical properties and thermal conductivity properties, the particle size distribution of tungsten particles also affects the surface properties of the material. Generally speaking, the smaller the particle size, the smoother the surface of the material and the greater the specific surface area. This may affect the material's chemical reactivity and adsorption properties, thereby changing how the material behaves in a specific environment.