In physical vapor deposition coatings, sputtering targets and evaporation materials are two important types of raw materials. We can distinguish between the two materials by name and shape. First, the sputtering target is used for vacuum sputtering, and the evaporation material is used for vacuum evaporation. Secondly, the evaporating material is also called evaporation pellets because it is almost in the state of pellets or tablets during use, the shape of which can accelerate the evaporation rate and coating quality. The following picture can easily help you identify the target and evaporate.
Although the evaporating materials are usually granular, there are also differences in their sizes and shapes.
Regular Shapes
Cylindrical evaporation pellets
The cylinder is the most common shape in the evaporating material particles. According to the length of the cylinder, it can be subdivided into the following three shapes:
Quadratic Cylinder. Its main axis has the same length as its equatorial axis. Its meridian plane is a square.
Elongated Cylinder. Its main axis is longer than its equatorial axis. Its meridian plane is a rectangle.
Shortened Cylinder. Its main axis is shorter than its equatorial axis. Its meridian plane is a rectangle.
Globular evaporation pellets
Square evaporation pellets
Irregular shapes
In fact, many of the evaporating materials for industrial applications are actually irregularly shaped evaporating materials. It cannot be said that which one (the regular or irregular) is better. The shape of the evaporating particles should be selected according to specific application and the specific materials. The following are the common irregular evaporation pellets.
Evaporation powder materials
Triangular evaporation pellets
Lamellar evaporation pellets
For more information, please visit https://www.sputtertargets.net/.
Vacuum Evaporation Coating 