Fused Quartz Filament

A Quartz - Fused Filament is a type of filament offered by Goodfellow within its range of engineered materials. Made of fused quartz, it exhibits high purity, thermal stability, and durability. With Goodfellow providing over 5 variations, Quartz - Fused Filament's can be customized for applications like fiber optics, semiconductor manufacturing, and laboratory equipment. Its unique properties allow it to withstand ultra-high temperatures while resisting chemical corrosion.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Filament

Diameter		±20%
Length		+5% / -1%

Material Properties for Ceramics

Chemical Resistance

Element	Value
Acids - concentrated	Good
Acids - dilute	Good
Alkalis	Fair
Halogens	Good
Metals	Fair

Electrical Properties

Element	Value
Dielectric constant	3.8
Dielectric strength( kV mm⁻¹ )	25-40
Volume resistivity( Ohmcm )	10¹⁸@25

Physical Properties

Element	Value
Refractive index	1.46
Useful optical transmission range	180-2500nm
Apparent porosity( % )	0
Water absorption - saturation( % )	0
Density( gcm⁻³ )	2.2

Thermal Properties

Element	Value
Melting point( C )	1715
Upper continuous use temperature( C )	1100-1400
Specific heat( J K⁻¹ kg⁻¹ )	670-740@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	1.46@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	0.54@20-1000