Japanese Scientists Developed New Diamond-CBN Bonding Materials

Recently, Japanese scientists have successfully developed atomic bonds between diamond and cubic boron nitride (CBN). This achievement has opened up a new way for the development of new semiconductor materials.

Diamond is the world's most hard materials, but because it can react with iron, it cannot be used for steel cutting processing under high temperature. The hardness of cubic boron nitride is second only to diamond, but it has good chemical stability under high temperature, and is not able to react with iron.

If diamond-CBN - these two kinds of crystal materials can be combined to develop a new type composite material, it may develop a new type cutting tool, used for machining of ferriferous hard rock and hard workpieces. In addition, the bonding of these two kinds of semiconductor materials can also be used for the development of new type semiconductor.

And recently, a scientific research team from Tohoku University published their diamond-CBN bonding research results in the journal Nature Communications. Japan's National Institute for Materials Science and Japan Fine Ceramics Center (JFCC) use high resolution scanning electron microscopy (sem)to observe the bonding of diamond-CBN crystal materials.

Researchers have found that diamond-CBN bonding materials have a regular shape design of structure. But strangely, for some of the lattice defects formed by the boundary layer of diamond-CBN material, only the irregularity of the above design is analysized, the main structure types can be calculated.

The team is going to further study the characteristics of diamond-CBN bonding materials in the next step, hoping to be able to master the technology of diamond-CBN crystal lattice defects.