|
gptkbp:instanceOf
|
gptkb:glass
|
|
gptkbp:alsoKnownAs
|
gptkb:fused_quartz
|
|
gptkbp:appearance
|
transparent
|
|
gptkbp:chemicalFormula
|
SiO2
|
|
gptkbp:color
|
colorless
|
|
gptkbp:component
|
gptkb:silicon_dioxide
|
|
gptkbp:density
|
2.2 g/cm³
|
|
gptkbp:distinctiveFeature
|
gptkb:glass
soda-lime glass
|
|
gptkbp:fabricationProcess
|
melting high purity silica
|
|
gptkbp:hardness
|
Mohs 5.5–6.5
|
|
gptkbp:infraredTransmission
|
good
|
|
gptkbp:meltingPoint
|
~1713°C
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.458
|
|
gptkbp:resistantTo
|
thermal shock
high temperatures
chemical corrosion
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:structure
|
amorphous
|
|
gptkbp:thermalExpansionCoefficient
|
5.5 × 10⁻⁷ /K
|
|
gptkbp:toxicity
|
non-toxic
|
|
gptkbp:transparencyRange
|
UV to IR
|
|
gptkbp:uses
|
gptkb:research_institute
gptkb:optical_fibers
semiconductor industry
UV optics
high-temperature windows
|
|
gptkbp:UVTransmission
|
excellent
|
|
gptkbp:bfsParent
|
gptkb:LIGO_project
gptkb:silicon_dioxide
|
|
gptkbp:bfsLayer
|
6
|
|
http://www.w3.org/2000/01/rdf-schema#label
|
fused silica
|