... /D:20/10 Sapphire WaferWorldhawk offers a series wafer with different materials. Sapphire is a material of a unique combination of physical, chemical and ... , thermal shock, water and sand erosion, and scratching. It is a superior window material for many IR applications from 3µm ... .0053.Material:sapphire (α-Al2O3≥99.99%)4.Crystal orientation:C,A,R5.Surface Roughness:Rz0.016.S/D:10/5 20 ...