Ceramic coatings are widely used to refurbish equipment in high-temperature and corrosive environments, such as CVD chambers, PVD chambers, solar cells, and electrostatic chucks. Plasma-sprayed ceramic coatings can be ground to a near-mirror finish, making them ideal for both aesthetic and functional applications. These coatings are also used to strengthen bearings and restore them to near-original condition.
Key Ceramic Coatings and Their Properties:
1. Yttrium Oxide Ceramic Coating
– High heat dielectric with excellent corrosion resistance.
– Macrohardness: Rn15 | Surface Finish: Ra 120µin (sprayed), Ra 5µin (ground).
– Bond Strength: 4931 PSI* | Breakdown Voltage: 10 mils/3 kV (purity dependent).
2. Aluminum Oxide Ceramic Coating
– High heat dielectric with strong corrosion resistance.
– Macrohardness: Rn15 | Surface Finish: Ra 130µin (sprayed), Ra 6µin (ground).
– Bond Strength: 4790 PSI* | Breakdown Voltage: 10 mils/3.5 kV | Melting Point: 2314°C.
3. CrownRe`s Chrome Oxide Ceramic Coating
– Exceptional hardness and corrosion resistance.
– Microhardness: 1950 Kn100 | Surface Finish: Ra 160µin (sprayed), Ra 3µin (ground).
– Bond Strength: 7195 PSI* | Melting Point: 1990°C.
4. CrownRe`s Titanium Dioxide Ceramic Coating
– High corrosion resistance and emissivity.
– Macrohardness: Rn15 | Surface Finish: Ra 250µin (sprayed), Ra 8µin (ground).
– Bond Strength: 6510 PSI*.
5. CrownRe`s Zirconium Oxide Ceramic Coating
– Excellent thermal barrier properties.
– Macrohardness: Rn15 | Surface Finish: Ra 150µin (sprayed), Ra 10µin (ground).
– Bond Strength: 6970 PSI*.
*Bond strength measured using the Cylindrical Bond Strength Method.