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Low Thermal Expansion Ceramic Mirrors
Highly rigid and extremely thin with reduced weight.
- By utilizing dense cordierite with a low thermal expansion coefficient, deformation due to temperature change is suppressed.
- Due to the thin shape enabled by the high rigidity, and the complicated rib structures, weight can be reduced to approximately 1/3 compared with low thermal expansion glasses (based on Kyocera simulation).
- These materials offer excellent machinability yielding higher productivity for complicated shapes as well as shorter production times.
- Property :
- High Specific Rigidity
- Low Thermal Expansion
Product Data
| Material | Cordierite |
|---|---|
| Special process | Weight reduction is possible by utilizing rib structures. |
Features
Deflection depth compared with low thermal expansion glass
Conditions for investigation
- Product size: φ1020 × 120mm (Rib structure)
- Supported position: Three points at the circumference
- Load : Own weight only
Physical properties compared with low thermal expansion glass
Temperature dependence graph
The values are typical material properies and may vary according to products configuration and manufacturing process.
Applications
- Mirrors for telescopes
- Mirrors for semiconductor processing equipment
- Mirrors for three-dimensional measuring machines
