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QUARTZ ROD
June 30, 2021
QUARTZ CRUCIBLE
June 30, 2021

QUARTZ BOAT

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Description
Material 99.99% sio2  Specific heat(20℃) 660J/kg℃
Color clear Softening point 1730℃
Density 2.2×103kg/m2 Design Compressive Strength Greater than 1.1 x l09 Pa (160,000 psi)SMD 5730
Hardness 5.5 – 6.5 Mosh’ Scale 570 KHN 100 Annealing point 1250℃
Tensile strength 4.8×107 Pa (N/m2) (7000 psi) Thermal stability Put the quartz boat from 1100 °C to 20 ℃

three times, will not cracks.

It will be not changed color under 1100 degree for three hours.
Compression strength >1.1×109 Pa Bulk Modulus 3.7×1010 Pa (5.3×106 psi)
Coefficient of thermal
expansion (20℃-300℃)		 5.5×10-7cm/cm℃ Rigidity Modulus 3.1×1010 Pa (4.5×106 psi)
Thermal conductivity (20℃)  1.4W/m℃ Softening Point 1730°C
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