The high temperature ZERODUR® K2 glass ceramic material contains a crystal phase of more than 90% Keatite, produced by thermal transformation from the semitransparent ZERODUR® material. ZERODUR® K20 can be used at higher application temperatures compared to ZERODUR®. The material has high temperature stability and low thermal expansion and does not change its properties during multiple temperature cycles. Properties - Low coefficient of thermal expansion together with high long term temperature stability up to 850°C
- Can be matched with low thermal Expansion metal alloys, e. g. Invar®
- Excellent homogeneity and internal quality
- A transmission of more than 90% in the visible with a matte brilliant white finish
- Free of pores and polishable to very low surface roughness levels
- Large-scale parts can be produced with dimensions in the meter range
Applications- Mechanical and optical components within high energy laser systems
- Diffuse reflectors for laser-cavities
- Mold material in hot forming processes (glass, plastic etc.)
- High precision manufactured components
- Ceramic engine components
- Calibration standards for optical and mechanical probes
Information provided by SCHOTT. |