Saint-Gobain Quartzel® Fused Quartz Textiles

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Saint-Gobain Quartzel® Fused Quartz Textiles
Categories:	Ceramic; Glass; Glass Fiber; Oxide; Silicon Oxide; Other Engineering Material; Composite Fibers
Material Notes:	Quartzel® fiber is produced from quartz crystal that is ground, purified, fiberized by a fusion process. It is homogeneous, non-porous, continuous, amorphous, ultra pure silica glass. It is available in the form of yarn, roving, chopped strands, wool, and felts. It is used in dielectric applications (radomes, circuit boards), thermal applications (high temp insulation for aerospace, asbestos replacement, furnace linings, hot gas filtration), and reinforcement for composites (with resins such as phenolics or epoxies). Information provided by Saint-Gobain Quartz PLC.
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Physical Properties	Original Value	Comments

Density	2.20 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Mohs	7.0
Tensile Strength, Ultimate	6000 MPa	Virgin Filament
Elongation at Break	7.7 %	Virgin Filament
Modulus of Elasticity	78.0 GPa	Virgin Filament
Poissons Ratio	0.16

Electrical Properties	Original Value	Comments
Electrical Resistivity	6.00e+10 ohm-cm @Temperature 800 °C
Dielectric Constant	3.74 @Frequency 1e+9 Hz
Dielectric Strength	37.0 kV/mm
Dissipation Factor	0.00020 @Frequency 1e+9 Hz

Thermal Properties	Original Value	Comments
CTE, linear	0.540 µm/m-°C @Temperature 20.0 °C	isotropic (axial vs. radial)
Specific Heat Capacity	0.750 J/g-°C
Thermal Conductivity	1.38 W/m-K
Maximum Service Temperature, Air	1050 °C
Softening Point	1700 °C
Annealing Point	1220 °C

Optical Properties	Original Value	Comments
Refractive Index	1.4585

Component Elements Properties	Original Value	Comments
SiO2	99.95 %

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