Silicon Carbide · Service
Silicon Carbide Lapping, Honing and Polishing
I need an optical figure or angstrom-level finish on a hard material. Who laps and polishes it?
What it is
Rubbing the workpiece against a flat plate charged with diamond slurry to reach flatness and surface finish measured in wavelengths of light rather than thousandths of an inch. The route to optical transparency in a ceramic.
Suppliers
Suppliers 3
Companies that perform this process on customer material.
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Aperture Optical Sciences Verified25 mm to 800 mm
Precision machining and robotic polishing of silicon carbide to lambda/100 RMS. Polishing SiC is the expensive step. The hardness that makes it dimensionally stable also makes it slow to figure. Optional SiC claddings are offered. ITAR registered.
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PremaTech Advanced Ceramics Verifiedsource
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Valley Design Corp. VerifiedAS9100
Silicon carbide is listed among the materials lapped and polished, to 0.3 to 3 microinch Ra.
source
Input material
Forms this process takes in.