Frequently Asked Questions Replacing Metal Components with Hard Materials Lens Grinding & Polishing Piston & Sleeve Assemblies Sapphire Wafer Carriers Comparing Zirconia Alumina with Alumnium Oxide Metal Applications Using Ceramic Parts Problem, Solution, Result Examples Precision Optical Quartz Example Zirconia Replacement Example Precision Silicon Carbide Example Metalized Sapphire Window Example High Precision Ceramic Component Example Precision Zirconia (YTZP) Gearing Example