... )Material:sapphire 2)Crystal orientation:C,A,R 3)Diameter:1-180mm 4) ... 10 Sapphire WaferWorldhawk offers a series wafer with different materials. Sapphire is a material of a unique combination of physical, ... , water and sand erosion, and scratching. It is a superior window material for many IR applications from 3 ... sapphire (α-Al2O3≥99.99%)4.Crystal orientation:C,A,R5.Surface Roughness:Rz0.016.S/D:10 ...