beijing optics

Zerodur

Zerodur

Zerodur Introduction Zerodur is the trade name of a low thermal expansion glass-ceramic composite material made by Schott Glass. This report summarizes the chemical, physical and optical properties of Zerodur and discusses the applications for which this material is suited. History Borosilicate glasses α ~ 3 ppm/°C were developed in the late 1800s. These glasses […]