knoop hardness 1900 gpa optical window

Brand Name:zmkj

Model Number:sapphire crylinder plunger

Place of Origin:CHINA

... crystal form of Al2O3 with good chemical, mechanical and optical properties. Sapphire is resistant to strong acids and can be used in corrosive environments. The surface is scratch and abrasion resistant with a Knoop hardness of up to 1800 parallel to the

Brand Name:zmsh

Model Number:6inch single side polished

Place of Origin:china

dia150mm 6inch single side polished sapphire substrates forled ,C-plane,A-aixs R-plane 6inch Al2O3 crystal wafer,6inch C-axis double side polished sapphire wafer for led epi-ready,sapphire substrates, Al2O3 crystal optical lens About Sapphire Feature ...