Target material, which many people don't know, is actually the target material bombarded by high-speed charged particles. Although the target is widely used. However, there are still many people, not those who do not pay attention to this area do not know very well. The target material is the target material. In high-energy laser weapons, different power density, different output waveforms, different wavelengths of laser interact with different targets, which will produce different damage. It is mainly used for splashing in physical coating, including metal target and ceramic target.
Take the recent new oppo, Huawei and vivo mobile phones for example. These new phones on the market will find that you don't want those with good appearance. Now people's demand for beauty has become the mainstream standard of the era. The dreamlike powder of vivo X20, the nebula color of oppo R15, the light color of Huawei P20, and the streamer gradient of oppo findx bring us surprises again. Do you know that the gradual change process is realized by the target.
One is the principle:
Physical vapor deposition (PVD) technology refers to the technology that the material source, solid or liquid surface, is gasified into gaseous atoms, molecules or partially ionized into ions under the vacuum condition, and a thin film with a certain special function is deposited on the surface of the substrate through the low-pressure gas (or plasma) process.
By controlling the parameters of different target and thickness of deposited film, the film will show different colors under the reflection, refraction and interference of light.
The main methods of PVD are vacuum evaporation, sputtering, plasma, ion and MBE.
