{"id":19,"date":"2026-08-25T03:53:53","date_gmt":"2026-08-25T03:53:53","guid":{"rendered":"https:\/\/glassubstrate.net\/fused-silica\/"},"modified":"2026-09-28T09:45:34","modified_gmt":"2026-09-28T09:45:34","slug":"fused-silica","status":"publish","type":"rg_material","link":"https:\/\/glassubstrate.net\/en\/material\/fused-silica\/","title":{"rendered":"Fused Silica Glass"},"content":{"rendered":"
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FUSED SILICA \/ QUARTZ<\/div>\n

Fused Silica Glass<\/h1>\n

Combining broad-spectrum transmission, low thermal expansion and high-temperature stability<\/h2>\n

For UV optics, laser windows, semiconductor equipment and high-temperature structural parts, the material grade and hydroxyl content must be selected according to the operating band and service environment.<\/p>\n

Request a Material Quote<\/a><\/div>\n<\/div>\n<\/div>\n<\/article>\n<\/section>\n
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Material Positioning<\/div>\n

Determine the quartz material grade from operating band, thermal load and purity requirements<\/h2>\n

Fused silica is not a single specification; UV, IR, low-hydroxyl, high-purity and semiconductor applications have different raw material and inspection documentation requirements.<\/p>\n<\/div>\n

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01<\/span>Low thermal expansion<\/strong><\/p>\n

Dimensional change under thermal cycling is small, making it suitable for precision optics and high-temperature equipment.<\/p>\n<\/article>\n

02<\/span>Broad-spectrum choice<\/strong><\/p>\n

The appropriate grade can be selected for UV, visible or near-infrared operating bands.<\/p>\n<\/article>\n

03<\/span>High purity and temperature resistance<\/strong><\/p>\n

Suited to projects sensitive to metal impurities, outgassing, thermal stability or clean delivery.<\/p>\n<\/article>\n<\/div>\n<\/div>\n<\/section>\n

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Material Introduction<\/div>\n

From material grade to inspectable quartz glass components<\/h2>\n<\/div>\n
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Fused quartz glass is based on amorphous silicon dioxide and offers low thermal expansion, good optical transmission and high-temperature resistance. Different manufacturing routes affect hydroxyl content, impurities, bubbles, striae and spectral behaviour.<\/p>\n

Enquiries should specify the operating band, thermal environment, dimensions and thickness, surface quality, edge form and cleanliness requirements. For vacuum, laser or semiconductor scenarios, coating, bonding, particle or trace-element limits should also be stated.<\/p>\n

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