ZERODUR®
Extremely Low Thermal Expansion Glass-Ceramic
ZERODUR® glass-ceramic has an near-zero coefficient of thermal expansion over a wide temperature range
It is ideal in applications where geometrical shape and distance changes must be kept low under temperature variations
Extremely low CTE across a wide temperature range
Excellent CTE
homogeneity
Complex geometrical shapes
Excellent chemical & atmospheric stability
© SCHOTT
By default, the mean coefficient of thermal expansion (CTE) of ZERODUR® is measured within the temperature range of 0°C to 50°C
Forms of Supply
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Cut discs
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Rectangular blocks
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Prisms
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Rods
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Complex cut piece geometry
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Light-weighting optional
Common Applications
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Mirror substrate in large earthbound or orbital telescopes (GTC, Keck I, Keck II, Hubble, Chandra, SOFIA, VLT, ELT)
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IC and LCD lithography
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High precision metrology
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Ring laser gyroscopes
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Optical flats
Maximum operating temperature 600°C
SKAN hold a variety of ZERODUR® stock. Please get in touch to discuss your requirement.
ZERODUR® K20
ZERODUR® K20 is optimised to withstand higher operating temperatures up to 850°C, available as small, high precision components.
© SCHOTT