| WU Yuan-kang.Nano-polycrystal Diamond Superfine Powders and Its Application in Surface Techniques[J],36(6):64-65,69 |
| Nano-polycrystal Diamond Superfine Powders and Its Application in Surface Techniques |
| Received:July 09, 2007 Revised:December 10, 2007 |
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| DOI： |
| KeyWord:Nano-polycrystal diamond Diamond synthesized by a dynamic method Diamond texture. |
| Author | Institution |
| WU Yuan-kang |
lnstitute of Materials Science and Engineering, Southeast University, Nanjing , China |
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| Abstract: |
| A sort of nano polycrystal diamond superfine powders was synthesized with an explosion shock method , one of dynamic ways. It is different with singlecrystal diamond which synthesized by static pressure way. The polycrystal diamond grains are composed of many nanon sized texture subcrystals. The grains have irregular shapes and their surfaces are rough; Nevertheless the singlecrystal diamond grains have regular polyhedra shapes and theirsurfaces are smooth. As a sort of grains, the polycrystal diamond has more cutting edges and so it has higher abrasive efficiency. As a sort of strengthen grains in composited electroplating and chemical plating, it has obviously superiority, for the touch area with the plating matel is more wide, the binding force is more powerful, so it was hardly stripped from the coatings. At aborad, usually it is used in fine grind and polich process on the surfaces of hard allowys, jades, sapphies, diamonds and many synthetic crystals, it is also used in electroplating and chemical plating as a sort of strengthen grains. |
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