Nickel Coated Diamond Composite Powder

Nickel coated diamond composite powder is a kind of diamond surface metallization product. Diamond is well known as the highest hardness materials in natural.Its Mohs hardness is 10. The wear resistance and grinding ability is higher than all the grinding materials. In the production of diamond tools, metal bond or resin is used to fix the diamond particles to the matrix. The diamond has a very high interfacial energy, so it is difficult to bond with the general metal, alloy or resin. In this case, the diamond particles are only mechanically embedded in the matrix, and the combination force is poor, so the diamond is easy to be separated from the matrix in the work, resulting in the failure of the work, the working life is short, the grinding performance is not good enough.

In the manufacturing process of diamond tools, it is usually used to coat a layer of metal on the surface of diamond in order to improve the interface wettability between diamond and matrix.Nickel coated diamond composite powder is the most important product.

Nickel coated diamond composite powder, which usually used in diamond tools, has the following characteristics:

• The nickel coated layer ishomogeneous, integrate, compact and good adhesion
• Improve the bonding strength between the abrasive and the matrix
• Slow the thermal shock in the abrasive at work
• Improve particle strength of the abrasive
• Have a protective effect

l  The nickel content can be adjusted easily according to the use requirements