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Glass-Ceramic

Glass-ceramics have a characteristic manufacturing process and a unique set of properties. Combining the best aspects of glass and ceramic, they represent a new class of materials. The coefficient of thermal expansion (CTE) of lithium-aluminum-silicate (LAS) glass-ceramics can be tailored to nearly zero.
Factory workers pouring molten glass into a mold

Precise properties carefully controlled

Glass-ceramics are processed in two production steps: glass melting, including hot forming, and ceramization. The resulting material offers unique properties, such as near-zero expansion over a wide temperature range. The manufacturing process requires precise temperature management for outstanding homogeneity and tight control of the exact specifications.

Glass-ceramic component in the shape of a hexagon

A unique success story for more than 50 years

SCHOTT has been manufacturing and developing glass-ceramics for over 50 years. In that time, the material has opened up new possibilities for engineers and designers all over the world – and in space – by providing materials with unique sets of properties. Their applications range from home appliances, machinery and plant manufacturing, architecture, lithography and metrology to astronomy.

Illustration of a solid oxide fuel cell

Use of glass-ceramics as a sealing material

The wide variety of glass-ceramics is evidence of the material’s remarkable range of properties and, like glass, their composition is highly variable. Glass-ceramics are used as sealing material in components that need to withstand harsh environments and high operating temperatures, such as solid oxide fuel cells and electrolyzer cells.

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Master the Grill

Discover how SCHOTT NEXTREMA® glass-ceramic allows cooks to check the grill without having to open the lid.

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The ELT (Extremely Large Telescope) observatory on the Cerro Armazones mountain in Chile

A window into distant galaxies

SCHOTT’s ZERODUR® glass-ceramic ensures that crisp images are available to unlock the mysteries of the cosmos.

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SCHOTT NEXTREMA® glass-ceramic infrared heater cover

Lots of warmth, less glare. One solution.

The HEATSCOPE® PURE from Munich Home Systems was made possible through a close cooperation with SCHOTT NEXTREMA® and developed to address specific requirements.

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Want to know more? Let’s talk

Whether you need more information, samples, a quote, or advice for a project, we would be delighted to talk to you.

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