The detonation method uses the instantaneous high temperature (2000-3000K) and high pressure (20-30GPa) generated by the explosive detonation to convert the carbon in the explosive into nano diamonds. The particle size of the generated diamond is below 10nm, which is the finest diamond powder obtained by all methods at present. Nano-diamond has the dual characteristics of diamond and nanoparticles, and has broad application prospects in the fields of electroplating, lubrication and fine polishing.

Application fields of nano diamond powders:

(1) Wear-resistant material

During electroplating, adding an appropriate amount of nano-sized diamond powder to the electrolyte will make the grain size of the electroplated metal smaller, and the microhardness and wear resistance will be significantly enhanced;

Some people mix and sinter nano-diamond with copper-zinc, copper-tin powder, since nano diamond has the characteristics of small friction coefficient and high thermal conductivity, the obtained material has high scratch resistance and wear resistance, and can be used for internal combustion engine cylinder liners, etc. . 

(2) Lubricant material 

The application of nano diamond in lubricating oil, grease and coolant is mainly used in machinery industry, metal processing, engine manufacturing, shipbuilding, aviation, transportation. Adding nano diamond to lubricating oil can improve the working life of engine and transmission and save fuel Oil, friction torque is reduced by 20-40%, friction surface wear is reduced by 30-40%.

(3) Fine abrasive materials

The grinding fluid or grinding block made of nano-diamond powder can grind the surface with extremely high smoothness. For example: X-ray mirrors with extremely high surface finish requirements can be made; magnetic fluid grinding of ceramic balls with grinding fluid containing nano-diamond powder can obtain a surface with a surface roughness of only 0.013 μm. 

(4)Other uses of nano-diamond   

The use of this diamond powder in the manufacture of photosensitive materials for electronic imaging can significantly improve the performance of copiers;

Using the high thermal conductivity of nano-diamond, it can be used as thermal conductive filler, thermal paste, etc.