Characteristic of abrasive grain and use differentiation regarding objects to be machined
(1)..Comparison of crystal structure
(1)Characteristic of abrasive grain
Hardness
  Diamond CBN
Crystal structure
(cubic crystal)
Molecular formula C CBN
Lattice constant A 3.567 3.615
Density 3.514 3.480
.Thermal invariability
.Thermal conductivity ratio
.Use differentiation regarding objects to be machined