How to Manufacture Mysterious Nano Diamond?

Nano diamond is usually synthesized by dynamic high temperature and high pressure. According to the different principle and original carbon source needed for synthetic diamond, they can be divided into three categories, namely the shock wave method, the explosion method and the detonation product method.

A, The shock wave method makes graphite generate Carbonado diamond particles in the process of impacting by using high speed to impact graphite target board.

B, The explosion method makes graphite mixed with high energy explosives, and compress graphite in the explosive process into diamond.

C, The detonation product method uses negative oxygen balance explosives in an enclosed space or container, and those carbon atoms with no oxidation under the condition of the detonation instantaneous high temperature and high pressure, form the nanoscale carbon particles group by gathering, crystallization and a series of physical and chemical process. They include diamond phase, graphite phase and amorphous carbon. Through selective oxidation and chemical processing to remove the diamond phase, we will get the nanoscale diamond powder.

The diamond grain by using these three methods is nanoscale. The diamond powder by using former two methods, are basically polycrystalline or polycrystalline diamond grains, and also have a small amount of single crystal diamonds. And what the third way helps to get is single crystal diamond nanoparticles, but all are aggregate of single crystals .