Therefore, it is possible to use stronger grits embedded in a stronger bond to obtain much higher removal rates. The diamond wheels manufactured for glasses generally contain blocky single crystal grits in a metallic bond. On the other hand, ceramic materials are somewhere between glasses and carbides in terms of hardness. Therefore, various combinations of grits and bonds including vitrified bonds have been recommended for different ceramics. There are several other bond methods to manufacture diamond wheels, using Sun-Diamond powder.
Vitrified bond is another relatively common bond.
Vitrified bonds are manufactured from fusible powdered glasses along with fillers such as graphite or copper. These bonds are harder than metal bonds, but not as strong. They have less friction and more free-cutting action. Vitrified bonds are brittle and therefore more susceptible to mechanical damage through careless handling, and their thermal conductivity is lower so there are more susceptible to thermal damage. It also costs more to manufacture uitrified diamond wheels.