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Precision Glass Material

Fused Silica Glass

Fused Silica Glass supplied and processed by ANTGLASS for uv windows, laser optics, semiconductor parts, lamps. Compare source-linked properties, available f…

Engineering result: Use Fused Silica Glass data, supply form and processing requirements to specify a manufacturable optical or technical component.

01 — Engineering Overview

Technical Content and Specifications

ANTGLASS supplies and processes Fused Silica Glass for optical, electronic, laboratory and industrial components made to customer drawings.

Material Overview

Fused Silica: Synthetic amorphous SiO2. The material system is described as Synthetic amorphous SiO2. Selection begins with the exact grade, wavelength or optical function, thermal and chemical environment, starting form, finished geometry and inspection method. The material record is kept separate from the finished-part drawing so that grade data and manufacturing requirements remain traceable.

Applications associated with this material include UV windows, laser optics, semiconductor parts, lamps, high-temperature windows, precision substrates.. ANTGLASS uses the approved material and drawing to manufacture blanks and finished parts rather than treating a published material property as a universal component guarantee.

Published Technical Properties

The values below are taken from the V4R2R2 source-linked material dataset. Conditions such as wavelength, temperature, thickness and orientation remain part of the value and should not be removed during comparison.

PropertyPublished reference
Material typeSynthetic amorphous SiO2
TransmissionTypical high-purity grades cover deep UV through near IR
Refractive indexAbout 1.4585 at 587.6 nm
DensityAbout 2.20 g/cm3
Thermal expansionAbout 0.5-0.6 x 10^-6/K
Softening temperatureSoftening about 1585-1600 C
Maximum-use referenceGrade and load dependent
HardnessKnoop about 500-600
Thermal conductivityAbout 1.3-1.4 W/mK
Chemical resistanceGrade-specific; use manufacturer chemical-resistance data
Published sizeSheet, plate, blank or component form according to grade

Available Forms and Custom Processing

Common starting and finished forms include Sheet, plate, blank or component form according to grade, Cut blanks, Windows and plates, Discs, rings or wafers, Drawing-based finished components. Actual source size and thickness are matched to the order, while the finished component is controlled by the drawing.

  • Drawing and material-grade review
  • Blank preparation and geometry planning
  • Diamond cutting, CNC machining, drilling and controlled grinding
  • Lapping, optical polishing, ultrasonic cleaning and inspection

ANTGLASS can manufacture related products including Precision Optical Glass Windows, Laser Windows, Glass Substrates, Glass Wafers, Glass Carrier Wafers, TGV Glass Substrates. Projects that need material selection, prototype validation, optical performance or harsh-environment review can also use the related solutions: Prototype & Small-Batch Glass Manufacturing, Thin, Small & Complex Glass Parts, Optical, Sensor & Machine Vision Glass, Semiconductor, MEMS & Advanced Packaging Glass.

Design Rules for a Manufacturable RFQ

  • Provide wavelength range, OH or purity needs and laser or thermal conditions where relevant.
  • Dimension critical surfaces, edges, holes, slots and datums separately on the drawing.
  • Identify optical, sealing, bonding, coated and cosmetic zones before quotation.
  • Match inspection methods to the functional tolerance and surface requirement.
  • State prototype and production quantities together with cleaning and packaging needs.

Quality Risks and Inspection

Avoid subsurface damage, contamination and an incorrect silica grade for the wavelength or OH requirement. Finished optical performance also depends on polish and coating.

  • Material identity and source documentation
  • Dimensions, thickness and feature position
  • Clear aperture, scratch-dig or cosmetic zone and transmitted-light inspection
  • Edge chips, cracks and surface condition
  • Cleaning, orientation and protective packaging

Applications and Product Connections

  • UV windows
  • laser optics
  • semiconductor parts
  • lamps
  • high-temperature windows
  • precision substrates.

Material Comparison and Alternatives

Compare Fused Silica Glass with Borosilicate for moderate temperature and lower cost, CaF2 or MgF2 for deeper UV, sapphire for abrasion resistance.. Substitution should preserve the functional wavelength, refractive or spectral behavior, thermal expansion, temperature range, chemical durability, mechanical behavior, starting form and component cost.

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Frequently Asked Questions About Fused Silica Glass

What are the key properties of Fused Silica Glass?

Fused Silica Glass is selected from grade-specific optical, thermal, mechanical and chemical data. Published references include Material type: Synthetic amorphous SiO2; Transmission: Typical high-purity grades cover deep UV through near IR; Refractive index: About 1.4585 at 587.6 nm; Density: About 2.20 g/cm3. The finished component must also meet the drawing, surface and inspection requirements.

Can ANTGLASS supply and process fused silica in custom sizes?

Yes. ANTGLASS supplies and processes Fused Silica Glass as Sheet, plate, blank or component form according to grade, Cut blanks, Windows and plates, Discs, rings or wafers, Drawing-based finished components, subject to the selected starting form and drawing. We cut, machine, drill, grind, lap, polish, clean and inspect the material as required for the component.

Which products can be made from Fused Silica Glass?

Typical product connections include Precision Optical Glass Windows, Laser Windows, Glass Substrates, Glass Wafers, Glass Carrier Wafers. The exact product form, dimensions, edge condition, optical zone and packaging are defined by the customer drawing and application.

How is Fused Silica Glass machined and inspected?

The route is selected from material behavior, thickness, geometry and surface requirements. Inspection covers material identity, dimensions, edges and the functional surface; optical or substrate projects can add clear-aperture, flatness, TTV, surface-quality or spectral checks.

What materials should be compared with Fused Silica Glass?

Common comparison directions include Borosilicate for moderate temperature and lower cost, CaF2 or MgF2 for deeper UV, sapphire for abrasion resistance.. Compare the exact grades by wavelength, refractive index or transmission, CTE, temperature, chemical resistance, durability, starting form and total component cost.

Request a Material and Drawing Review

Provide the exact grade or target properties, drawing, dimensions, critical surfaces, operating conditions, quantity and inspection requirements. ANTGLASS will review the material, starting form and process route together.

  • Exact material grade or target properties
  • Drawing, dimensions, thickness and critical tolerances
  • Wavelength, temperature, chemical and mechanical environment
  • Surface quality, flatness, TTV, coating or sealing requirements
  • Prototype and production quantities
  • Inspection, cleaning, traceability and packaging requirements