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  • Zerodur
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  • Zerodur is a registered trademark of Schott Glass Technologies. It is a glass ceramic with an extremely low thermal expansion coefficient (~0.02 x 10-6/K at 0-50°C). Zerodur belongs to the glass-ceramic composite class of materials and has both an amorphous (vitreous) component and a crystalline component.The most important properties of Zerodur are
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  • Zerodur is a registered trademark of Schott Glass Technologies. It is a glass ceramic with an extremely low thermal expansion coefficient (~0.02 x 10-6/K at 0-50°C). Zerodur belongs to the glass-ceramic composite class of materials and has both an amorphous (vitreous) component and a crystalline component.The most important properties of Zerodur are * Nearly zero thermal expansion with outstanding 3D homogeneity * High internal quality * Good processing behaviour * Can be polished to a very high accuracy * Can be coated easily * Low Helium permeability * Non-porous * Good chemical stability
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