Fandom

CeraWiki

Zerodur

9.402páginas en
el wiki}}
Crear una página
Discusión0 Compartir

¡Interferencia de bloqueo de anuncios detectada!


Wikia es un sitio libre de uso que hace dinero de la publicidad. Contamos con una experiencia modificada para los visitantes que utilizan el bloqueo de anuncios

Wikia no es accesible si se han hecho aún más modificaciones. Si se quita el bloqueador de anuncios personalizado, la página cargará como se esperaba.

Zerodur[1] is a registered trademark of Schott Glass Technologies[2]. 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

ApplicationsEditar

  1. Optics: Many optical applications such as telescopes, optical cavities etc require a substrate material with a near-zero coefficient of thermal expansion and/or excellent thermal shock resistance.
  2. Microlithography: Zerodur is used as a movable mechanical part in wafer stepper and scanner machines to achieve precise and reproducible wafer positioning. Zerodur is an ideal substrate material for reflective optics in the forthcoming EUV lithography due to its almost zero thermal expansion, outstanding homogeneity and good processing behavior.
  3. Measurement Technology: The extremely low thermal expansion and proven long-term dimensional stability of Zerodur make it an ideal reference standard for measurement instruments.

Zerodur Constants [3]Editar

Notes Editar

  1. SCHOTT AG - Schott Optik
  2. SCHOTT AG - glass made of ideas
  3. Melles Griot Optics Guide - ZERODUR

Plantilla:List of glass companiesde:Zerodur fr:Zerodur ja:ゼロデュア

Spotlights de otros wikis

Wiki al azar