The surface energy of a material describes its tendency to form a surface area. In microscale applications, the surface energy of a material can affect its wettability, adhesion, and other surface-related properties.
The surface energy of tungsten needles is relatively high compared to other common engineering materials such as stainless steel, titanium, and aluminum. This high surface energy can make tungsten needles more prone to surface oxidation and contamination, which can affect their performance in microscale applications.
However, the high surface energy of tungsten needles can also be an advantage in certain applications, such as in microscale printing and coating, where good wetting and adhesion to the substrate are required.
