Fused Silica

The glassy isotropic form of quartz. Crystal quartz is melted at high temperature to make an amorphous, non-birefringent glass of low refractive index.


Symbol
SiO2

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Atomic / Molecular Weight 28.09 gmol-1Clip
Density 2203 kgm-3Clip
Crystal Structure amorphous glass Clip
Youngs modulus 73100000000 Nm-2Clip
Poissons ratio 0.17 Clip
Specific heat capacity 703 Jkg-1K-1Clip
Thermal conductivity 1.38 Wm-1K-1Clip
Refractive index 1.458 at 589.3nm 101.3kPa 0CClip
Bulk Modulus of Rigidity 36700000000 Nm-2Clip
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See also: Quartz.

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Subjects: Chemistry Optics